Emergency Procurement: Supply of Pumps for District Heating Systems (Ukraine)

New amendment added #3: Dear Bidders,Please be advised that RFQ/2026/63782 has been revised and amended:The deadline for submission of quotations is extended till 23:59 (Kyiv time) 07.09.2026.All other terms and conditions of RFQ/2026/63782 remain unchanged.Thank you.With best regards,UNOPS Procurement Team__________________________________________Шановні учасники!Повідомляємо, що до RFQ/2026/63782 було внесено зміни:Кінцевий строк подачі пропозицій продовжено до 23:59 (час за Києвом) 07.09.2026.В усьому іншому RFQ/2026/63782 залишається без змін.Дякуємо.З повагою,UNOPS Procurement Team 

New amendment added #2: Dear Bidders,Please be advised that RFQ/2026/63782 has been revised and amended.Kindly refer to the document RFQ_2026_63782_Amendment 02_Summary of Revisions.pdf for a summary of the changes made to the initial RFQ documents package.Kindly note that some documents from the original RFQ package have been replaced with the revised versions. Please use the revised versions of the documents when preparing and submitting your quotation.Thank you.With best regards,UNOPS Procurement Team__________________________________________Шановні учасники!Повідомляємо, що до RFQ/2026/63782 було внесено зміни та доповнення.Просимо ознайомитися з документом RFQ_2026_63782_Amendment 01_Summary of Revisions.docx, який містить стислий перелік змін, внесених до початкового пакета документів RFQ.Зверніть увагу, що деякі документи, що входили до початкового пакета документації RFQ, замінено оновленими редакціями. Просимо використовувати оновлені редакції документів під час підготовки та подання тендерної пропозиції.Дякуємо.З повагою,UNOPS Procurement Team 

New clarification added: Dear Bidders,Please be informed that an updated version of the Schedule of Requirements will be issued shortly. The updated document will incorporate all changes described in the clarification responses provided in response to Bidders’ questions.Please ensure that you use the updated versions of the Schedule of Requirements and all other applicable returnable forms when preparing and submitting your quotation.Thank you.With best regards,Procurement Team____________________________________Шановні Учасники,Повідомляємо, що найближчим часом буде оприлюднено оновлену версію Schedule of Requirements (Переліку вимог). Оновлений документ враховуватиме всі зміни, зазначені у відповідях на запити роз'яснення від Учасників.Просимо під час підготовки та подання ваших тендерних пропозицій обов’язково використовувати виключно оновлені версії Schedule of Requirements (Переліку вимог) та всіх інших форм, що підлягають заповненню та поданню Учасниками.Дякуємо.З повагою,Відділ Закупівель

New clarification added: Most pump equipment requires commissioning and start-up works to be carried out by an authorized or specialized service center in order to ensure proper operation of the equipment and maintain the manufacturer's warranty.Could you please clarify whether the cost of commissioning, start-up and adjustment works, including the involvement of an authorized/specialized service center where required by the manufacturer, should be included in the quoted price of the pump equipment?If these services are required as a condition for maintaining the manufacturer's warranty, we kindly ask you to clarify whether bidders should include all associated costs in their financial offers.This clarification is important to ensure that all bidders calculate their offers on the same basis and that the total cost of the equipment, including mandatory commissioning services, is properly reflected in the tender evaluation.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.If the Manufacturer’s warranty terms require commissioning works to be performed exclusively by the Manufacturer and/or its authorized representatives as a condition for the warranty to become effective or remain valid, such works shall be mandatorily included in the Bidder’s proposal.Accordingly, the Technical Specification of the RFQ will be supplemented with Requirement 2.5:2.5 If the Manufacturer’s warranty terms require commissioning, installation supervision, start-up, adjustment or any other works related to the Goods to be performed exclusively by the Manufacturer and/or its authorized service provider as a condition for the warranty to become effective or remain valid, such works shall be included in the scope of supply. The Supplier shall ensure compliance with all relevant Manufacturer’s requirements necessary for the warranty to become effective and remain valid. The price of the Goods shall include all costs associated with the performance of such works and shall not entail any additional costs for UNOPS or the final recipient.Accordingly, in Clause 2.5 of the Technical Proposal, the Bidder shall indicate whether such Manufacturer’s requirements exist and, if applicable, specify the complete list of the relevant works, as well as the conditions and timeframe for their performance.With best regards, Procurement Team

New clarification added: In connection with our review of the technical requirements specified in the tender documentation, we kindly request clarification and, where possible, consideration of the proposed amendments to the technical specifications of the pumping equipment.In order to broaden competition, attract a greater number of potential bidders, including European manufacturers, and ensure the possibility of offering technically equivalent or superior equipment, we kindly ask you to consider the following points:1. Maximum operating temperature of the liquid - Positions 1, 2 and 5According to the tender documentation, the maximum liquid temperature for the above-mentioned positions is specified as 110 °C.We kindly ask you to clarify whether a maximum liquid temperature of 110 °C is actually required for the pumps under Positions 1, 2 and 5.Based on practical experience with similar systems, the operating temperature of the liquid in most cases does not exceed 70–90 °C. At the same time, the requirement to operate at temperatures of up to 110 °C may have a significant impact on the design of the pumps, their cost and manufacturing lead times.If it is confirmed that the actual maximum liquid temperature does not exceed 100 °C, we kindly ask you to consider adjusting the relevant technical requirement accordingly. This would allow a wider range of potential manufacturers to participate and could also contribute to reducing the cost and manufacturing time of the equipment.This requirement is specified, in particular, in Sections 1.2.2.7, 1.3.1.4, 1.3.2.7, 1.6.1.4 and 1.6.3.4 of the tender documentation.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The request to reduce the maximum operating temperature of the pumped liquid is rejected. The technical requirements of the tender documentation regarding the temperature parameters of the pumping equipment (Items 1, 2 and 5) remain unchanged.Justification:The technical characteristics of the pumping equipment specified in the tender documentation are based on the initial design data of the construction/reconstruction project, namely an 80 MW boiler house. This heat supply source operates according to a high-temperature schedule, which is standard for large district heating systems:Primary boiler circuit: 130 °C / 80 °C (supply/return);Secondary circuit (district heating network): 115 °C / 70 °C (supply/return).Reducing the maximum operating temperature of the pumps would create a risk of an emergency situation and equipment failure during peak periods of the heating season.Technical justification by Item:Item 1 (Boiler Circulation Pumps):These pumps provide circulation directly through the hot-water boiler of the primary circuit. According to the design, the heat-transfer fluid temperature at the boiler outlet reaches 130 °C. The tender documentation requirement for a maximum temperature of +110 °C (as specified in the Item description) has already been minimized to the limit, taking into account the mixing of flows; therefore, any further reduction is not possible.Item 2 (Economizer Circulation Pumps):These pumps operate in the area of the highest thermal loads associated with cogeneration/waste heat recovery from the flue gases of the hot-water boiler, where the heat-transfer fluid temperature consistently exceeds 100 °C. A temperature capability of up to +110 °C is mandatory to prevent cavitation and damage to the mechanical seals.Item 5 (Double-Suction Network Pumps):These pumps provide circulation directly within the district heating network (secondary circuit), which is designed for a supply temperature of 115 °C. The tender documentation requirement for a maximum pumped liquid temperature of +120 °C for this Item is critically important, as it covers the network design maximum of 115 °C with a 5 °C technological safety margin.Reducing the requirements for the operating temperature range of the pumps would pose a direct threat to the reliable operation of the critical infrastructure facility (80 MW boiler house) and could result in a large-scale disruption of the city's heat supply during the winter period.With best regards, Procurement Team 

New clarification added: Requirement pt. 2.3The warranty shall cover all defects in materials, workmanship and manufacturing. All direct and indirect costs associated with warranty service shall be borne by the Supplier.We kindly request the removal of the word "indirect" from the clause: "All direct and indirect costs associated with warranty service shall be borne by the Supplier."We propose the following amended wording: "All direct costs associated with warranty service shall be borne by the Supplier."Justification:Including "indirect costs" (such as potential lost profits of the enterprise, factory downtime, third-party utility disruptions, etc.) in the Supplier's obligations creates an undefined financial liability and opens the door to unfair or legally vague claims. These expenses are completely unrelated to the technical process of diagnosing, repairing, or replacing the pump itself.Standard international engineering practices and warranty policies of European manufacturers stipulate that the manufacturer/supplier is solely responsible for direct costs required to restore the equipment's functionality (parts, labor, and diagnostics). We request the removal of this phrase to ensure clear and legally fair contract terms.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.Please note that the term “all direct and indirect costs associated with warranty service” in Clause 2.3 refers exclusively to costs associated with the performance of warranty obligations, including, where applicable, diagnostics, repair, replacement, transportation, removal/reinstallation of the Goods, and other activities related to warranty service.Provided that the Supplier duly performs its warranty obligations in accordance with the requirements of the Contract, this provision does not impose liability on the Supplier for loss of profit, loss of revenue, production downtime, or other indirect or commercial losses incurred by the end user.The requirement will be clarified accordingly in the Technical Specification:2.3 The warranty shall cover all defects in materials, workmanship and manufacturing. All costs directly associated with the performance of warranty obligations, including, but not limited to, where applicable, diagnostics, labour, spare parts, repair, replacement, transportation, removal and reinstallation of the Goods, shall be borne by the Supplier. Provided that the Supplier duly performs its warranty obligations in accordance with the requirements of the Contract, the Supplier shall not be liable under this warranty provision for loss of profit, loss of revenue, production downtime, or other indirect or commercial losses.With best regards, Procurement Team 

New clarification added: Requirement 2.2During the warranty period, the Supplier or its authorized service center shall provide maintenance and repair of the Goods no later than thirty (30) calendar days from the date of receipt of a written or electronic notification from the authorized party.In the event that the Goods require replacement, the replacement period shall not exceed the delivery period specified in the Purchase Order.We kindly request to amend the clause regarding the replacement of Goods by adding the phrase "or its parts" to read as follows:"In the event that the Goods or any parts thereof require replacement, the replacement period shall not exceed..."Justification:A pump unit is a complex piece of engineering equipment consisting of distinct functional modules (such as the electric motor, hydraulic volute casing, impeller, mechanical seals, or electronic control units). In most warranty cases, it is technically and economically practical to replace only the specific faulty component or part rather than the entire pump unit. This approach significantly speeds up the restoration of the pump's operability on-site and aligns with standard international service practices of European manufacturers__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.This requirement remains unchanged.Justification:The subject of this procurement is a complete, ready-for-operation pump unit as a single, integrated item of equipment (Goods) for the needs of the boiler house. Since the boiler house is a critical infrastructure facility ensuring uninterrupted heat supply, the warranty obligations and technical requirements specified in the tender documentation apply to the Goods as a whole.The term “Goods” by default encompasses all constituent parts, assemblies and components thereof. Further detailing of the tender documentation by adding the words “or parts thereof” is not considered necessary, as the existing wording fully and unambiguously protects the Recipient’s interests in receiving fully operational equipment with factory-level reliability in the event of a warranty claim.At the same time, the requirements of the RFQ do not restrict the Supplier in choosing the technical method for rectifying defects (including replacement of individual assemblies during maintenance or repair), provided that such measures restore the equipment to full operability within the specified 30-day period.With best regards, Procurement Team

New clarification added: Requirement 2.1Warranty period (minimum): thirty-six (36) months from the date of delivery of the Goods or twenty-four (24) months from the date of first operational start, whichever period expires later.We kindly request the amendment of the clause: "Warranty period (minimum): thirty-six (36) months from the date of delivery of the Goods or twenty-four (24) months from the date of first operational start..."Justification:The standard commercial warranty period provided by major European pump manufacturers (including DAB Pumps, Wilo, Grundfos, etc.) is 24 (twenty-four) months from the date of delivery or purchase.Demanding an extended warranty of up to 36 months, combined with an open-ended "whichever expires later" condition, does not align with standard factory warranties for serial industrial equipment. This requirement artificially restricts competition, as it obligates bidders to include third-party insurance or take on excessive financial risks, which unnecessarily increases the final tender price.We propose to amend this requirement to match the market standard: 24 (twenty-four) months from the date of delivery or purchase, which fully ensures the protection of the customer's interests based on official manufacturer backing.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.These requirements remain unchanged.Justification:1. Protection of the boiler house buildingThe Equipment will be installed inside a building. Continuous operation of high-capacity pumps without adequate vibration protection would result in the transmission of dynamic and acoustic energy to the walls and floor structures, which is unacceptable under infrastructure reliability standards.2. Clarification of the requirementThe requirement does not stipulate that the vibration-isolation elements must be integrated into the pump design directly at the pump Manufacturer’s factory. The Bidder is fully entitled to offer a standard European pump in its standard factory configuration.3. Scope of supplyVibration-isolation elements (pads, vibration dampers) compatible with the support brackets may be manufactured by a certified third-party manufacturer. The Bidder shall supplement the support structure with such elements and include them in the overall scope of supply under this procurement.Therefore, the requirement does not create artificial restrictions for pump manufacturers, but merely establishes engineering safety requirements for the completed facility. With best regards, Procurement Team

New clarification added: Requirement pt. 1.11.4.1All flanges shall bear clear, legible and permanent marking applied by the manufacturer in accordance with the applicable standards. The marking shall ensure unambiguous product identification and shall include at least:- manufacturer name or trademark;- flange type;- nominal diameter (DN);- nominal pressure (PN);- material grade/designation;- heat number or other material traceability identification;- country of origin (where required);- other information required by the applicable flange standard.We kindly request the removal of this entire clause due to its non-applicability to the requested equipment type.Justification:In modern single-stage In-line or close-coupled pumps the connection flanges are not separate components. They are cast as an integral, non-separable part of the main pump volute casing (hydraulic body).Therefore, there is no separate "flange manufacturer" or separate flange material characteristics apart from the pump casing itself. The origin, chemical composition, and characteristics of the casing material (e.g., cataphoretic cast iron or stainless steel) are already fully certified by the pump manufacturer's standard technical passports and test reports. Requiring distinct traceability and separate material documentation specifically for the flanges is technically incorrect for this type of equipment and artificially restricts competition. We request the removal of this clause.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.This requirement remains unchanged.Justification:1. Status and criticality of the facilityThe Equipment covered by this procurement is intended for a large infrastructure boiler house classified as a critical infrastructure facility. Any technical failure or accident at such a facility poses a direct threat to the provision of essential services to the population and to regional safety. Accordingly, the RFQ includes enhanced requirements for reliability, metallurgical integrity and the quality of structural materials.2. Compliance with European and national legislationIn accordance with Directive 2014/68/EU (Pressure Equipment Directive), in particular Annex I, Section 3.1.5, and Clause 39 of Annex 1 to the Technical Regulation on Pressure Equipment (Resolution of the Cabinet of Ministers of Ukraine No. 27), the equipment Manufacturer is required to ensure full traceability of materials for all pressure-bearing components in order to prevent their mixing or substitution during manufacturing.According to the official guidance on the Directive (PED Guideline G-05), main body flanges are classified as main pressure-bearing parts. The fact that the flanges are cast integrally with the pump casing (In-line or close-coupled design) does not exempt the Manufacturer from compliance with this requirement. On the contrary, this means that the procedures for traceability, identification of chemical composition and marking shall apply to the entire hydraulic casing casting (including its flange areas) and shall be supported by the relevant quality documentation (in accordance with EN 10204, Type 3.1 or 3.2).3. Marking requirements to ensure traceabilityTo demonstrate compliance with the traceability requirements, the pump casing itself (including the area of the integral flanges) shall bear factory-applied marking (cast-in or applied by stamping/engraving). Such marking shall clearly identify: the material grade or material code; the Heat Number or a unique serial number of the component/casting batch that directly links the casting to the Manufacturer’s material quality certificate (in accordance with EN 10204).The RFQ requirement is fully consistent with fundamental international safety standards for industrial equipment and is critically important for facilities of this scale. Provision of documentation and confirmation of marking ensuring traceability and the material characteristics of the entire pressure-bearing assembly is mandatory for demonstrating compliance of the Bidder’s proposal.With best regards, Procurement Team 

New clarification added: Requirement 1.11.3.1The flange manufacturer shall ensure traceability of the base material and shall apply procedures preventing mixing or substitution of materials during manufacturing. Upon request, documents confirming the origin, grade and characteristics of the material shall be available.We kindly request the removal of this entire clause due to its non-applicability to the requested equipment type.Justification:In modern single-stage In-line or close-coupled pumps the connection flanges are not separate components. They are cast as an integral, non-separable part of the main pump volute casing (hydraulic body).Therefore, there is no separate "flange manufacturer" or separate flange material characteristics apart from the pump casing itself. The origin, chemical composition, and characteristics of the casing material (e.g., cataphoretic cast iron or stainless steel) are already fully certified by the pump manufacturer's standard technical passports and test reports. Requiring distinct traceability and separate material documentation specifically for the flanges is technically incorrect for this type of equipment and artificially restricts competition. We request the removal of this clause.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.This requirement remains unchanged.Justification:1. Status and criticality of the facilityThe equipment covered by this procurement is intended for a large infrastructure boiler house classified as a critical infrastructure facility. Any technical failure or accident at such a facility poses a direct threat to essential services for the population and to regional safety. Accordingly, the RFQ includes enhanced requirements for reliability, metallurgical integrity and the quality of structural materials.2. Compliance with European and national legislationIn accordance with Directive 2014/68/EU (Pressure Equipment Directive), in particular Annex I, Section 3.1.5, and Clause 39 of Annex 1 to the Technical Regulation on Pressure Equipment (Resolution of the Cabinet of Ministers of Ukraine No. 27), the equipment Manufacturer shall ensure full traceability of materials for all pressure-bearing components in order to prevent their mixing or substitution during manufacturing.According to the official guidance on the Directive (PED Guideline G-05), main body flanges are classified as main pressure-bearing parts. The fact that the flanges are cast integrally with the pump casing (In-line or close-coupled design) does not exempt the Manufacturer from this requirement. On the contrary, this means that the procedures for traceability, identification of chemical composition and marking shall apply to the entire hydraulic casing casting (including its flange areas) and shall be supported by the relevant quality documentation (in accordance with EN 10204, Type 3.1 or 3.2).3. Marking requirements to ensure traceabilityTo demonstrate compliance with the traceability requirements, the pump casing itself (including the area of the integral flanges) shall bear factory-applied marking (cast-in or applied by stamping/engraving).Such marking shall clearly identify: the material grade or material code; the Heat Number or a unique serial number of the component/casting batch that directly links the casting to the Manufacturer’s material quality certificate (in accordance with EN 10204).The RFQ requirement is fully consistent with fundamental international safety standards for industrial equipment and is critically important for facilities of this scale. Provision of documentation and confirmation of marking ensuring traceability and verification of the material characteristics of the entire pressure-bearing assembly is mandatory for demonstrating compliance of the Bidder’s proposal.With best regards, Procurement Team

New clarification added: Requirement 1.11.2.4Flange gaskets shall comply with the EN 1514 series regarding type, dimensions, design and materials. Selected gaskets shall ensure tightness under the design pressure, temperature and operating medium.Compliance shall be confirmed in the Manufacturer's technical documentation, including the technical data sheet (equipment passport, where issued by the Manufacturer), factory test reports or other relevant Manufacturer's technical documentation.We kindly request the removal of this entire clause or, at a minimum, the deletion of the following phrase: "Compliance shall be confirmed in the Manufacturer's technical documentation, including the technical data sheet (equipment passport, where issued by the Manufacturer), factory test reports or other relevant Manufacturer's technical documentation."Justification:It is ambiguous which specific flange gaskets are being referred to in this context. European pump manufacturers supply serial pumps with standard flanged connections on the pump casing itself, but they do not specify or supply the external mating gaskets required to connect the pump flanges to the site's external piping system.Consequently, information regarding compliance with the EN 1514 series for external installation gaskets is completely absent from the manufacturer's standard technical documentation, data sheets, and factory test reports. Requiring the pump manufacturer to certify external gasket materials at the bid submission stage artificially restricts competition and disqualifies standard, high-quality industrial equipment. Mating gaskets are installation-stage consumables and should be selected and verified during on-site assembly.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement to provide Manufacturer’s documentation for flange gaskets remains unchanged.Justification:1. Safety of the completed facilityOperation of the industrial boiler house at the maximum specified heat-transfer medium temperatures requires strict compliance with the EN 1514 series of standards regarding the type, dimensions and materials of gaskets. This is necessary to minimize the risk of loss of tightness and accidental leakage at flanged joints.2. Clarification of the requirementThe RFQ does not require external flange gaskets to be manufactured directly by the Manufacturer of the offered equipment (pumps) or to be specified in the individual technical data sheets of the pump units.3. Source of documentationThe term “Manufacturer’s documentation” means an official technical data sheet, quality certificate or test report issued by the actual manufacturer of the sealing materials/gaskets that the Bidder intends to supply for installation of the equipment.The Bidder may offer a standard European pump in its basic factory configuration. However, to comply with the tender requirements, the Bidder shall supplement the scope of supply with gaskets of the appropriate type and, at the bid submission stage, provide technical documentation (technical data sheet/certificate) issued by the manufacturer of such gaskets confirming their compliance with the EN 1514 series of standards for the specified operating conditions (pressure and temperature). Proposals without confirmation of the conformity of the gaskets will be rejected as non-compliant with the RFQ.With best regards, Procurement Team

New clarification added: Requirement 1.11.2.3Selection of bolting shall comply with EN 1515-4:2021. The combination of flange, bolt, stud and nut materials shall comply with EN 1515-2:2001 and shall ensure the reliability, strength and tightness of the flange joint under design operating conditions.Compliance shall be confirmed in the Manufacturer's technical documentation, including the technical data sheet (equipment passport, where issued by the Manufacturer), factory test reports or other relevant Manufacturer's technical documentation.We kindly request the removal of this entire clause or, at a minimum, the deletion of the following phrase: "Compliance shall be confirmed in the Manufacturer's technical documentation, including the technical data sheet (equipment passport, where issued by the Manufacturer), factory test reports or other relevant Manufacturer's technical documentation."Justification:It is ambiguous which specific bolting selection for flange joints is being referred to in this context. European pump manufacturers supply standard pump units with counter-flanges or threaded/flanged connections on the pump casing itself, but they do not specify or supply the external connecting bolts, studs, or nuts required to integrate the pump into the site's piping system.Consequently, information regarding compliance with EN 1515-4:2021 and EN 1515-2:2001 for the external piping installation is completely absent from the manufacturer's standard technical documentation, data sheets, and factory test reports. Requiring the pump manufacturer to certify external bolting materials at the bid submission stage artificially restricts competition and disqualifies standard, high-quality industrial equipment. External bolting selection is an installation-stage task and should be verified during on-site assembly.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement to provide Manufacturer’s documentation for flange fasteners remains unchanged.Justification:1. Leak-tightness of the completed facilityThe procurement for the boiler house requires the supply of a complete engineering solution. Operation of the district heating system at high pressure and temperature requires strict compliance with EN 1515-4 and EN 1515-2 to prevent accidental failures and loss of tightness of flanged joints.2. Clarification of the requirementThe RFQ does not require external installation bolts, studs and nuts to be manufactured directly by the Manufacturer of the offered equipment (pumps) or to be specified in the individual technical data sheets of the hydraulic units.3. Flexibility in demonstrating complianceThe term “Manufacturer’s documentation” means the official technical documentation (quality certificates, technical data sheets, test reports) issued by the actual manufacturer of the fasteners (bolts, studs, nuts, etc.) to be used for the flange connections.The Bidder is fully entitled to offer a standard European pump in its factory configuration. However, to comply with the tender requirements, the Bidder shall include the installation fasteners in the overall scope of supply and, at the bid submission stage, provide technical data sheets or certificates issued by the manufacturer of such bolts/studs confirming compliance with EN 1515-4:2021 and EN 1515-2:2001. With best regards, Procurement Team

New clarification added: Requirements 1.5.2.12; 1.7.2.10; 1.8.2.10The design of the support brackets must withstand the static weight of the pump assembled with the motor and filled with water with a three-fold safety factor. The geometry of the brackets must ensure rigid fixation of the pump without shaft distortion and minimize the transfer of dynamic loads to building structures using vibration-isolating elements.We kindly request the removal of the following phrase from the technical specification: "...and minimize the transfer of dynamic loads to building structures using vibration-isolating elements."Justification:Standard configurations from the vast majority of European pump manufacturers do not include vibration-isolating elements. These items are not part of the standard factory delivery scope for serial pump units. The methods and equipment for minimizing dynamic loads on building structures depend entirely on the site-specific civil engineering conditions and must be determined, calculated, and supplied during the installation stage. Retaining this phrase in the equipment specification artificially restricts competition and disqualifies standard industry-compliant models.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.These requirements remain unchanged.Justification:1. Protection of the boiler house buildingThe equipment will be installed inside the building. Continuous operation of high-capacity pumps without adequate vibration protection would result in the transmission of dynamic and acoustic energy to the walls and floor structures, which is unacceptable under infrastructure reliability standards.2. Clarification of the requirementThe requirement does not stipulate that the vibration isolation elements must be integrated into the pump design directly at the pump Manufacturer’s factory. The Bidder is fully entitled to offer a standard European pump in its factory configuration.3. Scope of supplyVibration isolation elements (pads, vibration dampers) compatible with the support brackets may be manufactured by a certified third-party manufacturer. The Bidder shall complete the support structure with these elements and include them in the overall scope of supply under this procurement.Thus, the requirement does not create artificial restrictions for pump manufacturers but merely establishes the engineering safety requirements for the completed facility. With best regards, Procurement Team 

New clarification added: Requirements 1.4.5.1; 1.4.5.2; 1.5.5.1; 1.7.5.1; 1.8.5.1The pump unit shall include, as a minimum:- pump;- electric motor;- support brackets for pump mounting (a set complete with anti-vibration pads and a full set of fasteners of strength class not less than 8.8).We kindly request the removal of the item "support brackets for pump mounting (a set complete with anti-vibration pads and a full set of fasteners...)" from the mandatory pump unit scope.Justification:For the vast majority of European pump manufacturers , standard delivery configurations do not include anti-vibration pads, fasteners, or mounting brackets. These components are not standard factory accessories because their exact types, sizes, and technical specifications must be determined and supplied at the installation/construction stage, depending entirely on the specific layout and structural conditions where the pumps will be installed.Including these installation materials in the standard equipment package artificially restricts competition and disqualifies standard, high-quality industrial equipment. We propose to remove this item from the equipment scope to allow standard factory configurations.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pump unit to be supplied complete with support brackets, anti-vibration pads and fasteners of strength class not lower than 8.8 remains unchanged. The RFQ requires the supply of a complete set of components necessary for immediate and reliable installation of the equipment without any additional procurement.Justification:1. Facility requirementsThe equipment will be installed in a building with defined dimensions, designated installation points and specified structural loads. The high strength class of the fasteners (not lower than 8.8) and the provision of anti-vibration pads are critical engineering requirements of the project for protecting the structures of the completed building against the damaging effects of dynamic forces.2. Clarification of the requirementThe RFQ does not require these installation components to be manufactured directly by the pump Manufacturer or supplied in the pump Manufacturer’s original packaging. The Bidder may offer a standard European pump in its factory configuration.3. Flexibility in completing the scope of supplyThe support brackets, anti-vibration pads and fasteners (strength class 8.8) may be manufactured by a certified third-party manufacturer. The main requirement is that they shall be selected in accordance with the dimensions and weight of the offered pump and included by the Bidder in the overall scope of supply.Thus, the requirement does not restrict competition among global brands but merely defines the completeness of the supply based on the principle of readiness for installation.With best regards, Procurement Team

New clarification added: Requirements 1.4.2.2; 1.5.2.2; 1.6.2.1; 1.7.2.1; 1.8.2.2.Pumps shall be equipped with vibration isolators or other means of reducing vibration transmission to building structures.We kindly request the removal of the clause: "Pumps shall be equipped with vibration isolators or other means of reducing vibration transmission to building structures."Justification:The pumps are supplied in the standard configuration exactly as provided by the manufacturer. The manufacturer does not provide vibration protection measures or vibration isolators as part of the standard delivery scope for this equipment type.Vibration isolation measures (such as rubber mounts, spring anti-vibration elements, or flexible pipe joints) are traditionally selected, calculated, and supplied at the installation/construction stage depending on the unique structural features of the building and the piping layout. Mandating these accessories within the standard manufacturer's package artificially restricts competition and disqualifies standard industry-compliant equipment. We propose to remove this requirement from the equipment scope.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pumps to be provided with vibration isolators or other means of reducing vibration transmission remains unchanged. Since the facility has a fully completed building and an approved detailed design, the supply of a complete set of equipment necessary for safe installation and protection of the building structures against dynamic loads is required.1. Protection of the buildingInstallation of heavy industrial boiler house equipment without vibration isolation measures is unacceptable, as this would result in the transmission of potentially damaging dynamic loads to the existing building structures and foundations.2. Clarification of the requirementThe RFQ does not require the vibration isolators to be factory-integrated into the pump as a standard integral component. The Bidder may offer a standard European pump in its factory configuration.3. Scope of supplyThe vibration isolation components (rubber or spring mounts, vibration-damping elements) may be manufactured by a certified third-party manufacturer. They shall be selected in accordance with the technical characteristics of the offered pump (weight, rotational speed) and included in the overall scope of supply.Thus, the requirement does not restrict competition among pump manufacturers but merely defines the final configuration of the engineering solution required for the completed facility.With best regards, Procurement Team

New clarification added: Requirements 1.4.2.2; 1.5.2.2; 1.6.2.1; 1.7.2.1; 1.8.2.2.Pumps shall be equipped with vibration isolators or other means of reducing vibration transmission to building structures.We kindly request the removal of the clause: "Pumps shall be equipped with vibration isolators or other means of reducing vibration transmission to building structures."Justification:The pumps are supplied in the standard configuration exactly as provided by the manufacturer. The manufacturer does not provide vibration protection measures or vibration isolators as part of the standard delivery scope for this equipment type.Vibration isolation measures (such as rubber mounts, spring anti-vibration elements, or flexible pipe joints) are traditionally selected, calculated, and supplied at the installation/construction stage depending on the unique structural features of the building and the piping layout. Mandating these accessories within the standard manufacturer's package artificially restricts competition and disqualifies standard industry-compliant equipment. We propose to remove this requirement from the equipment scope.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pumps to be provided with vibration isolators or other means of reducing vibration transmission remains unchanged. Since the facility has a fully completed building and an approved detailed design, the supply of a complete set of equipment necessary for safe installation and protection of the building structures against dynamic loads is required.1. Protection of the buildingInstallation of heavy industrial boiler house equipment without vibration isolation measures is unacceptable, as this would result in the transmission of potentially damaging dynamic loads to the existing building structures and foundations.2. Clarification of the requirementThe RFQ does not require the vibration isolators to be factory-integrated into the pump as a standard integral component. The Bidder may offer a standard European pump in its factory configuration.3. Scope of supplyThe vibration isolation components (rubber or spring mounts, vibration-damping elements) may be manufactured by a certified third-party manufacturer. They shall be selected in accordance with the technical characteristics of the offered pump (weight, rotational speed) and included in the overall scope of supply.Thus, the requirement does not restrict competition among pump manufacturers but merely defines the final configuration of the engineering solution required for the completed facility. With best regards, Procurement Team

New clarification added: Requirements 1.2.2.12; 1.3.2.12; 1.6.2.10;Face-to-face distance between inlet and outlet flanges: …… mm (an increase of up to 20% is permitted).We kindly request the amendment or removal of the clause: "Face-to-face distance between inlet and outlet flanges: ….. mm (an increase of up to 20% is permitted)."Justification:Please clarify if both a decrease and a larger variation in the face-to-face distance are acceptable. In piping design, standard face-to-face dimensions for identical hydraulic parameters vary significantly among different European manufacturers.Restricting this parameter strictly (with a permitted increase only) artificially restricts competition. It favors only one specific manufacturer and disqualifies alternative high-quality equipment. If a pump has a smaller face-to-face distance, it can be easily installed on-site using standard spool pieces (pipe extensions), which is a common and simple engineering practice.We propose to either remove this strict dimension restriction or widen the permitted tolerance range to (e.g., up to +/-30%) allowing the submission of energy-efficient and standard industry-compliant models.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirements regarding the face-to-face distance between the inlet and outlet flanges will be amended as follows:Face-to-face distance between the inlet and outlet flanges: …… mm (a deviation within the range of -5% to +20% is permitted).The Bidder shall offer pumps with an installation length (face-to-face distance between the flanges) equal to the baseline value specified in the Technical Specification or within the permitted deviation range of -5% to +20% from that value.The specified baseline installation length values have been determined taking into account the adopted design solutions for the arrangement of the pumping equipment and connecting pipelines within the boiler house. At the same time, in order to broaden the range of equipment that may be offered by different manufacturers and taking into account differences in the standard design dimensions of pumps, a limited deviation from the baseline installation length is permitted both below and above the specified value.The permitted deviation has been established within the range of -5% to +20% in order to provide sufficient flexibility in equipment selection without requiring substantial changes to the installation and layout solutions provided for in the project design. A greater deviation, including the proposed +/-30%, may require revision of the equipment layout, connecting pipeline sections, supports and other related design solutions and therefore cannot be accepted as a generally permitted deviation under this RFQ.With best regards, Procurement Team

New clarification added: Requirements 1.2.2.1; 1.3.2.11; 1.4.2.9; 1.7.2.9Maximum overall installation height: …… mm (an increase of up to 20% is permitted).We kindly request the removal or amendment of the clause: "Maximum overall installation height: ……mm (an increase of up to 20% is permitted)."Justification:Please clarify if both a decrease and a larger increase in the overall height of the pump are acceptable. In engineering practice, the exact installation height of an In-line pump is not a critical operational parameter for mounting on a standard pipeline and does not affect hydraulic performance.Restricting the dimension so strictly (with a permitted increase only) artificially limits competition. Different premium European manufacturers (such as DAB Pumps, Wilo, Grundfos) design their motors and motor stools differently, resulting in varying heights for the same hydraulic performance.We propose to either remove this height restriction entirely or widen the permitted range (e.g., up to +-30%) to allow the submission of energy-efficient, standard industry-compliant models.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The specified technical requirement remains unchanged and is mandatory.Justification:1. Spatial constraints at the facilityThis procurement is being carried out for a critical infrastructure facility with limited available space.a) High-capacity In-line pumps are installed on horizontal pipelines with the motors positioned vertically upwards.b) The overall installation height of the pump unit is directly limited by engineering utilities located above the pump group.c) Exceeding the critical overall dimension (beyond the specified +20%) would make it physically impossible to install the equipment, service the motor, or remove it using lifting equipment in the future.2. Clarification regarding a reduction in height (“negative” deviation)Please note the mathematical and engineering meaning of the requirement. The wording “Maximum overall installation height” inherently establishes an upper limit for the overall dimensions of the equipment, including the permitted tolerance (+20%).a) Any reduction in pump height (a negative deviation, whether -30% or -50%) is fully acceptable, since more compact pump models can be integrated into the available boiler house space even more easily.b) Only an increase beyond the maximum permitted overall dimension is strictly limited.3. No artificial restriction of competitionThe permitted allowance of +20% represents a broad engineering tolerance that accommodates the design differences in motor and adapter heights among most leading European manufacturers offering pumps with comparable hydraulic parameters. The requirement is based on actual measurements at the facility in order to ensure the physical compatibility of the equipment with the available space.The Bidder may offer pumps of any height equal to or less than the baseline value specified in the Technical Specification, or exceeding that value by no more than +20%. Models whose overall height exceeds the upper limit (+20%) cannot be installed at the facility and will be rejected as non-compliant with the RFQ.With best regards, Procurement Team

New clarification added: Requirements 1.2.2.10; 1.3.2.10; 1.4.2.8; 1.5.2.8; 1.6.2.8; 1.7.2.7; 1.8.2.7; 1.9.2.5; 6.4.The bearing units shall be designed for a nominal bearing life (L10h) of not less than 50,000 hours of continuous operation under nominal operating conditions in accordance with the methodological basis of ISO 281 (DSTU ISO 281). At the bid submission stage, the Bidder shall provide a technical calculation (or an official letter confirming the reliability parameters) issued by the bearing manufacturer or its official representative in Ukraine.We kindly request the removal of the requirement to provide a technical calculation or an official letter from the bearing manufacturer at the bid submission stage.Justification:European pump manufacturers design and manufacture electric motors in strict compliance with the methodological basis of ISO 281 (DSTU ISO 281) to ensure long-term, heavy-duty operation. However, during mass production, manufacturers utilize high-quality bearings from various approved premium brands (e.g., SKF, FAG, NSK, NTN) that meet the identical technical specification.Consequently, pump manufacturers do not disclose the exact brand of the bearing installed in a specific serial motor beforehand, and bearing manufacturers cannot issue confirmation letters for components integrated into third-party equipment. Requesting such specific third-party documentation at the bidding stage is practically impossible for standard European serial equipment.We propose to amend the clause to require only a general declaration/statement from the pump manufacturer confirming that the motors are designed in accordance with ISO 281 standards, rather than requiring a separate letter from a bearing manufacturer.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The technical requirement to provide a technical calculation or an official letter from the bearing manufacturer remains unchanged and is mandatory.Justification:1. Protection of critical infrastructure against counterfeit components and premature wearUnder continuous boiler house operating conditions, bearings are subject to constant thermal and mechanical loads. An L10h rating of ≥ 50,000 hours is a basic engineering reliability standard for high-reliability industrial equipment. For this urban infrastructure rehabilitation project, general declarations of “compliance with standards” are insufficient; the reliability of the bearing assemblies shall be verified by calculations or official documentation.2. Clarification regarding “third-party documentation”We agree that leading European pump manufacturers use a pool of certified bearing suppliers. Please note that the requirement is formulated using the conjunction “or”, thereby providing the Bidder with flexibility in selecting the supporting document. The RFQ does not require the Bidder to contact bearing manufacturers directly to obtain separate letters for individual pump components.To successfully comply with the requirement and confirm the L10h ≥ 50,000 hours parameter, the Bidder may submit one of the following documents at the bid submission stage:1) Technical calculation from the pump Manufacturer: An official page from the pump/motor Manufacturer’s catalogue, technical data sheet, operation manual or engineering design file clearly stating that the respective motor series uses bearings with a calculated service life of L10h ≥ 50,000 hours in accordance with ISO 281.2) Official letter from the pump Manufacturer: An official information letter from the pump manufacturing plant itself (or its general representative office) confirming that: “The offered pumps (model) are equipped with bearings from certified brands designed for a nominal service life of L10h ≥ 50,000 operating hours in accordance with ISO 281.”Thus, the pump Manufacturer is not required to disclose commercially sensitive information or the exact part number of a specific bearing in advance. It is sufficient to confirm the engineering reliability standard applicable to its motor series. This approach maintains competition while ensuring the high quality of the procurement.With best regards, Procurement Team

New clarification added: Requirement 1.2.5.2; 1.3.5.2The pump unit shall be supplied fully assembled in factory-built execution with the electric motor mounted on the support frame and shall be ready for installation and commissioning without additional assembly of the main components on site.We kindly request the removal of the item "support frame" from the mandatory pump unit scope.Justification:A support frame is not provided for this type of Vertical In-line pump by the vast majority of European manufacturers . In-line pumps are designed to be installed directly into the pipeline, where the pipe itself supports the pump unit, or they are equipped with standard integrated mounting feet/bosses underneath the pump casing for direct anchoring to a concrete plinth.Requiring a separate "support frame" as a standard factory component for an In-line pump configuration artificially restricts competition and disqualifies standard industry designs.We propose to remove this item to allow standard factory configurations.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pump unit to be supplied fully assembled in factory-built execution on a support frame remains unchanged and is mandatory. The RFQ has been prepared based on the principle of ensuring maximum equipment readiness for installation in order to minimize the duration of on-site works and eliminate the risks associated with poor-quality assembly under field conditions.Justification:1. Minimization of risks at a critical infrastructure facilityThe specific nature of the heat supply rehabilitation project requires rapid installation and commissioning. Assembly, shaft alignment and installation of the motor on the frame directly at the boiler house construction site (under field conditions) create additional risks of human error, misalignment and contamination of bearing assemblies. The unit shall be supplied by the Supplier ready for installation “out of the box.”2. Structural necessity of the frame for demanding operating conditionsInstallation of high-capacity boiler house pumps exclusively “in the pipeline” is unacceptable. Even where the pump casing has integrated mounting feet, the factory support frame provides the necessary rigidity of the entire assembly, evenly distributes its weight and dynamic vibration loads to the foundation, and prevents flange deformation and accidental leakage of the heat transfer medium.Leading global pump manufacturers offer ready-made factory-produced configurations or official factory accessories for medium- and high-capacity In-line pumps in their product ranges:a) Pump units factory-equipped with original support plates/frames (for example, “Baseplate kit” configurations or “Twin/Single pumps on base frame” versions).b) In such configurations, the equipment undergoes final factory balancing and testing, ensuring maximum reliability.To comply with the RFQ requirements, the Bidder shall contact the Manufacturer (or its official distributor) and order the equipment not in its minimum basic configuration (a “bare” pump intended for direct installation into the pipeline), but as a complete factory package with the original support frame/baseplate designed for the respective model. With best regards, Procurement Team

New clarification added: Requirements 1.2.5.1; 1.3.5.1The pump unit shall include, as a minimum:- pump;- electric motor;- support frame.We kindly request the removal of the item "support frame" from the mandatory pump unit scope.Justification:A support frame is not provided for this type of Vertical In-line pump by the vast majority of European manufacturers . In-line pumps are designed to be installed directly into the pipeline, where the pipe itself supports the pump unit, or they are equipped with standard integrated mounting feet/bosses underneath the pump casing for direct anchoring to a concrete plinth.Requiring a separate "support frame" as a standard factory component for an In-line pump configuration artificially restricts competition and disqualifies standard industry designs.We propose to remove this item to allow standard factory configurations.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pump, electric motor and support frame to be included in the scope of supply remains unchanged and is mandatory.Justification:1. Operational safety of critical infrastructureThis equipment is intended for integration into the main heating networks of the boiler house, where high-capacity pumps with high dynamic loads are used. Installation of heavy pumps exclusively “in the pipeline” without an additional load-relieving foundation element (frame) creates critical mechanical stresses on the flange connections and the pipes themselves. This is contrary to safety requirements regarding the stability of infrastructure facilities.2. Load distribution and vibration isolationThe integrated mounting feet beneath the casing of some In-line pumps have a limited contact area. The use of a common support frame makes it possible to:a) Evenly distribute the static weight of the entire unit (pump + motor) over the concrete foundation.b) Rigidly maintain the alignment of the components during long-term operation.c) Effectively integrate vibration protection elements between the frame and the foundation.Clarification regarding compliance with the requirement at the tender stage:The Request (RFQ) does not require the support frame to be exclusively a factory-assembled component or to be supplied in the same package by the pump manufacturer itself.a) The Bidder is fully entitled to offer a standard high-quality European pump in its factory configuration.b) The support frame may be manufactured as an additional accessory by a certified third-party manufacturer or by the Supplier itself in accordance with the engineering drawings, dimensions and mounting holes of the offered pump.c) The main condition is that the pump unit shall be delivered to and installed at the boiler house as an assembly complete with the support frame, ensuring that the system is ready for safe commissioning.Thus, the requirement does not restrict competition among global pump manufacturers, but merely defines the final integrity of the engineering solution being procured for the facility.With best regards, Procurement Team

New clarification added: Requirements pts. 1.2.2.6; 1.3.2.6The pump shaft and motor shaft shall be connected by means of a flexible coupling capable of compensating minor installation misalignments.We kindly request the removal or amendment of the clause: "The pump shaft and motor shaft shall be connected by means of a flexible coupling capable of compensating minor installation misalignments."Justification:For the requested type of inline/close-coupled inline pumps, the vast majority of European manufacturers utilize a rigid coupling (rigid stub shaft design). In modern European engineering, rigid couplings are the industry standard for this pump geometry because they ensure precise alignment, eliminate the need for manual alignment on-site, and reduce wear on seals and bearings.Enforcing a "flexible coupling" requirement for this pump category artificially restricts competition, disqualifies standard European designs, and limits the tender to outdated or completely different pump configurations (such as long-coupled end-suction pumps).We propose to amend the text to allow both rigid and flexible couplings, or to remove this restriction entirely.  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.The specified technical requirements remain unchanged.Justification:1) The equipment is being procured for a boiler house operating under conditions of significant temperature fluctuations of the district heating water, dynamic hydraulic loads, and cyclic start/stop operation.a) Under the influence of high temperatures (up to 95°C–115°C and above), metal district heating pipelines undergo linear thermal expansion. This creates continuous minor displacements and stresses at the pump flanges.b) The use of a flexible (elastic) coupling is a technical solution that allows these unavoidable operational and installation misalignments to be continuously compensated.c) Unlike a rigid coupling, which transmits vibration and angular stresses directly to the motor bearings and mechanical seals, a flexible coupling dampens (absorbs) such impacts. This is critical for preventing emergency shutdowns during the peak heating season.2) The elastic elements of flexible couplings are standard consumable components, ensuring a high degree of maintainability by local personnel.3) The requirement does not impose restrictions on specific brands or manufacturers. In the global and European industrial pump markets, many leading brands (including those certified for heavy-duty industrial applications) offer ranges of medium- and high-capacity vertical and horizontal In-line pumps specifically designed with extended shafts and flexible couplings (e.g. dry-rotor pumps with “Serrated/Spacer coupling” or “Flex-coupled” configurations).The fact that some manufacturers offer product ranges exclusively with rigid couplings (solid shaft connections) is an internal engineering solution adopted for their standard commercial series; however, such a solution does not meet the stringent operating requirements of this particular critical infrastructure rehabilitation project.The Bidder shall offer pumping equipment designed to transmit torque through elastic/flexible coupling elements capable of compensating for minor displacements.With best regards, Procurement Team

New clarification added: Requirement 1.3.2.1Pumps shall be installed on a support frame is equipped with vibration isolators or other means of reducing vibration transmission to foundation structures.We kindly request the removal or amendment of the clause: "Pumps shall be installed on a support frame is equipped with vibration isolators or other means of reducing vibration transmission to foundation structures."Justification:The vast majority of global pump manufacturers do not provide a support frame or vibration isolation components (such as rubber mounts or spring anti-vibration elements) in their standard factory configurations for this pump type.Vibration protection and structural mounting frames are traditionally engineered, selected, and supplied at the installation/construction stage based on the unique properties of the foundation and building layout. Forcing these materials into the standard manufacturer's delivery scope artificially restricts competition and disqualifies standard industry-compliant equipment. We propose to remove this item to allow standard factory configurations.__CLARIFICATION RESPONSE__Dear Bidder,Thank you for your clarification request.The requirement for the pumps to be installed on a support frame equipped with vibration isolators remains unchanged.The RFQ does not require the support frame and vibration isolators to be components exclusively of the pump’s factory assembly; however, the inclusion of these elements in the overall scope of supply and installation is mandatory to protect the structural elements of the boiler house.Justification:1. The final selection and installation of vibration isolation elements (anti-vibration mounts, flexible connectors, etc.) shall be carried out directly at the site during installation works.The phrase “shall be provided by the Manufacturer” means that the Manufacturer, in its official technical documentation (instructions, operation manual or pump technical data sheet), shall clearly specify and recommend particular vibration isolation measures, arrangements and technical solutions applicable to the respective equipment series in order to ensure its safe operation. This is necessary to ensure that the installation of third-party components does not violate the Manufacturer’s requirements, which could result in the loss of warranty coverage.2. The RFQ does not require vibration isolation components to be supplied in the same factory package as part of the pump’s standard configuration.In its technical documentation, the pump Manufacturer may provide for the use of either proprietary accessories or certified third-party components (rubber mounts, spring vibration isolators) that meet the technical characteristics and operating parameters of the pump unit (weight, rotational speed, etc.).With best regards, Procurement Team 

New clarification added: Requirement 1.2.2.1The pumps shall be supplied in the manufacturer's standard configuration. Measures for vibration protection of the pump unit shall be provided by the manufacturer.We kindly request the removal or amendment of the clause: "Measures for vibration protection of the pump unit shall be provided by the manufacturer."Justification:The vast majority of global pump manufacturers do not include vibration isolation components (such as anti-vibration rubber mounts, springs, or flexible joints) in their standard factory configurations.Vibration protection is traditionally designed and calculated at the installation stage based on the specific foundation design, piping layout, and structural requirements of the building. Forcing this requirement into the standard manufacturer's delivery scope artificially restricts competition and disqualifies standard industry-compliant equipment.We propose to amend the clause to allow vibration protection measures to be provided during the installation/mounting stage using certified third-party components, rather than strictly by the pump manufacturer.  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.The requirement for vibration protection measures to be provided by the pump unit Manufacturer remains unchanged. Considering the specific installation requirements of boiler house equipment, the wording of the requirement does not restrict the use of third-party certified components, provided that they are approved by the Manufacturer.The final selection and installation of vibration isolation elements (anti-vibration mounts, flexible connectors, etc.) shall be carried out directly at the site during installation works.The phrase “shall be provided by the Manufacturer” means that the Manufacturer, in its official technical documentation (instructions, operation manual or pump technical data sheet), shall clearly specify and recommend particular vibration isolation measures, arrangements and technical solutions applicable to the respective equipment series in order to ensure its safe operation. This is necessary to ensure that the installation of third-party components does not violate the Manufacturer’s requirements, which could result in the loss of warranty coverage.The RFQ does not require vibration isolation components to be supplied in the same factory package as part of the pump’s standard configuration.In its technical documentation, the pump Manufacturer may provide for the use of either proprietary accessories or certified third-party components (rubber mounts, spring vibration isolators) that meet the technical characteristics and operating parameters of the pump unit (weight, rotational speed, etc.).The Bidder is fully entitled to implement these measures at the installation stage using certified third-party materials, provided that such measures and types of vibration isolation are generally specified and permitted by the pump Manufacturer’s technical documentation.To comply with this requirement, it is sufficient for the Bidder to confirm that the offered pumps are supplied in their standard configuration and that the Manufacturer’s instructions (or a separate official technical letter) specify clear vibration protection measures, including relevant recommendations and arrangements, which will be duly implemented during installation of the equipment.With best regards, Procurement Team 

New clarification added: Requirement 1.2.1.1; 1.3.1.1Type: Horizontal centrifugal pump, In-line type, flanged execution.Please clarify and correct the exact pump type required due to a direct technical contradiction in the specification:1. Structural Contradiction: By definition, "In-line" centrifugal pumps feature suction and discharge ports located on the same centerline. According to international engineering classifications (including the standards of European manufacturers ), they belong to the class of vertical pumps, not horizontal ones.2. Installation Constraints: Single-stage circulation In-line pumps with a motor power exceeding 7.5 kW or 11 kW must strictly be installed with the motor in a vertical position (shaft vertical) to prevent bearing damage and ensure shaft alignment, while the hydraulic part remains in a horizontal pipeline.Given the above, please clarify the correct pump type and update the technical requirements. Is a standard Vertical In-line pump required (with vertical motor placement on a horizontal pipe), or a classic Horizontal end-suction/monobloc pump?  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.The technical requirements for the equipment remain unchanged.Justification:1. Interpretation of the term “horizontal” for the In-line configurationIn the Technical Specification, the term “horizontal” refers to the installation geometry within the boiler house piping system. In-line pumps are installed directly “in line” on horizontal sections of the boiler house piping, with the suction and discharge nozzles arranged on the same horizontal axis. The RFQ describes this specific method of integrating the equipment into the heating network configuration, which is standard terminology used in piping system design.2. Alignment and motor orientation (above 7.5 kW / 11 kW)High-capacity In-line pumps shall indeed be installed with the motor shaft in a vertical position (motor upwards), while the suction and discharge nozzles of the hydraulic section remain connected in line with the horizontal pipeline. This arrangement prevents premature bearing wear, eliminates shaft imbalance and complies with safe operating requirements.To comply with the RFQ requirements, the Bidder shall offer a standard single-stage centrifugal In-line pump (with suction and discharge nozzles arranged “in line”) designed for installation in a horizontal pipeline and whose design, in the case of a high-power motor, provides for a vertical orientation of the electric motor shaft. Conventional close-coupled end-suction pumps with axial suction and radial discharge are not acceptable, as they require a different foundation arrangement and piping configuration.With best regards, Procurement Team

New clarification added: Requirement: 1.1.6The Bidder shall ensure that the offered equipment is designed for safe and reliable operation for a minimum service life of fifteen (15) years under the specified operating conditions, including operation at the maximum permissible temperature of the pumped medium specified in these technical requirements and in the manufacturer's documentation.Direct statements specifying a "15-year service life" are absent from European manufacturers' documentation, EU regulations omit fixed timeframes because actual equipment lifespan strictly depends on operational conditions.Long-term reliability and a design life exceeding 15 years are fully ensured by:- ISO 9001 (Quality Management): Factory standards guarantee heavy-duty materials (stainless steel, cataphoretic cast iron) with high safety margins.- CE Certification & Directive 2006/42/EC: Official compliance certifying mechanical reliability and safety throughout the product lifecycle.Subject to operating within specified limits (maximum temperature, nominal pressure, dry-run protection), our equipment achieves a calculated service life of over 15 years. Compliance is verified by the attached CE certificates and technical passports.  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.The requirement for a 15-year design service life of the pumping equipment (Clause 1.1.6) remains unchanged.The design service life is an engineering reference parameter for critical infrastructure rather than a commercial warranty.The availability of ISO 9001 certification, compliance with Directive 2006/42/EC and CE marking confirm the high quality of materials (stainless steel, cast iron with cataphoretic coating) and the overall safety of the equipment. However, these certificates and conformity requirements do not, in themselves, automatically declare a specific reliability period (15 years) for critical boiler house infrastructure. The RFQ requires direct confirmation of this parameter by the Manufacturer.To successfully comply with this requirement, it is sufficient to provide a Manufacturer’s Declaration for the offered equipment (see Clause 6.5 of the Schedule of Requirements), specifying the design service life of the offered Goods under continuous operation under the conditions defined in the Technical Specification of the RFQ, including operation at the maximum permissible temperature of the pumped medium specified in the Technical Specification of the RFQ.The Declaration may include direct references to technical data sheets, operating manuals and the Manufacturer’s design standards confirming this parameter.With best regards, Procurement Team 

New amendment added #1: Dear Bidders,Please be advised that RFQ/2026/63782 has been revised and amended:The deadline for submission of quotations is extended till 23:59 (Kyiv time) 31.08.2026.The deadline for submission of requests for clarifications is extended till 23:59 (Kyiv time) 23.08.2026.Thank you.With best regards,UNOPS Procurement Team__________________________________________Шановні учасники!Повідомляємо, що до RFQ/2026/63782 було внесено зміни:Кінцевий строк подачі пропозицій продовжено до 23:59 (час за Києвом) 31.08.2026.Кінцевий строк подачі запитів уточнень продовжено до 23:59 (час за Києвом) 23.08.2026.Дякуємо.З повагою,UNOPS Procurement Team 

New clarification added: Request for Clarification and Revision of Requirement L01.05Dear UNOPS,We kindly request clarification and reconsideration of certain elements of requirement L01.05 concerning the Manufacturer's Warranty Declaration.While manufacturers normally provide information regarding the warranty period and general warranty coverage, several of the required elements are not typically included in standard manufacturer warranty documentation and may not be objectively determinable at the bid submission stage.In particular:1. Scope of warranty coverageThe scope of warranty obligations is usually defined by the manufacturer's standard warranty policy and may vary depending on operating conditions, maintenance practices, installation quality, compliance with operating instructions, and other factors. Therefore, project-specific warranty statements containing exhaustive descriptions of all warranty obligations are not commonly issued by manufacturers.2. Maximum response time for repair and/or replacementDuring the current period of martial law in Ukraine, response times may be affected by circumstances beyond the control of the manufacturer, distributor, service partner, logistics providers or repair organizations, including transportation restrictions, security conditions, availability of spare parts, import procedures, and force majeure events.For this reason, manufacturers are generally unable to provide guaranteed maximum response times applicable to all possible situations throughout the warranty period. We therefore request that this requirement be replaced with a commitment to provide warranty support within a reasonable period according to the manufacturer's standard service procedures and subject to actual operating conditions.3. Design service lifeThe requirement to declare the design service life of the offered equipment under continuous operation, including operation at the maximum permissible pumped liquid temperature specified in the Technical Specification, appears particularly difficult to fulfil.Design service life depends on numerous factors, including actual hydraulic conditions, operating profile, start-stop frequency, maintenance quality, water characteristics, environmental conditions and other parameters which cannot be fully predicted at the procurement stage.Consequently, most manufacturers do not issue formal declarations guaranteeing a specific service life under project-specific operating conditions and temperatures. Such information is generally not part of standard warranty documentation and should not be treated as a guaranteed parameter.In view of the above, we kindly request that compliance with requirement L01.05 be considered sufficient through submission of the manufacturer's standard warranty declaration specifying:warranty period;general warranty terms and conditions;availability of warranty and after-sales support in Ukraine.We respectfully request deletion of the requirements concerning guaranteed maximum response time and declaration of design service life under specified operating conditions, as these parameters are not normally guaranteed by manufacturers and are affected by factors beyond their control.    __CLARIFICATION RESPONSE__    Dear Bidder,Thank you for your clarification request.Please find below offical response to your questions.Please be informed that requirement L01.05 remains unchanged.The Manufacturer's Warranty Declaration is required to obtain direct confirmation from the manufacturer(s) of the offered Goods of the warranty terms stated by the Bidder in its tender proposal and to prevent the inclusion of inaccurate information regarding warranty conditions in the proposal.The Declaration may be prepared in a free format and shall contain the following information in respect of the offered Goods:1) Warranty period;2) Scope of warranty coverage;3) Maximum response time for repair and/or replacement during the warranty period;4) Design service life of the offered Goods for continuous operation under the operating conditions specified in the Technical Specification, including operation at the maximum permissible temperature of the pumped medium specified therein;5) Detailed information on the manufacturer's warranty and after-sales service infrastructure in Ukraine, including the list of the Manufacturer's authorized service centres, their addresses and contact details, which will provide warranty and after-sales service for the offered Goods.Scope of warranty obligationsFor the purposes of this tender, the Manufacturer is not required to develop unique warranty terms specifically for this project. It is sufficient to confirm that the offered equipment is covered by the Manufacturer's official factory warranty:a) The Manufacturer may specify its standard scope of warranty obligations or make a direct reference to its official warranty policy or operating instructions.b) The Manufacturer may clearly state in the Declaration that the warranty obligations apply only subject to compliance with the applicable installation and commissioning requirements and proper operation of the equipment.Maximum response time for repair and/or replacementWe acknowledge the challenging conditions resulting from martial law, security risks and logistical constraints in Ukraine. However, the complete absence of any defined timeframe under the wording “reasonable period” is not acceptable for critical infrastructure facilities.a) The Manufacturer may specify a standard (baseline) response time applicable under normal operating conditions.b) The Declaration may additionally include a provision stating that the specified response time may be extended proportionately in the event of force majeure circumstances confirmed by the Ukrainian Chamber of Commerce and Industry, or due to direct security-related restrictions (air raid alerts, shelling, disruption or destruction of logistics routes).Design service lifeFor the purposes of this tender, the Manufacturer(s) is/are not required to provide a commercial guarantee that the equipment will operate without failure for the stated period under any and all conditions. The requirement refers to a technical design parameter (equipment service life) established by the Manufacturer's engineers during the design of the pump.a) The Manufacturer may specify the normative or calculated design service life (for example, in years or operating hours) under nominal operating conditions and at the maximum temperatures specified in the Technical Specification.b) The Manufacturer may state in the Declaration that such service life is an expected value and can be achieved only subject to compliance with the specified hydraulic operating conditions, correct selection of the duty point, regular maintenance, and compliance of the district heating network water quality with the requirements of the applicable technical documentation (equipment data sheet / operating manual).With best regards, Procurement Team

New clarification added: Questions for Clarification of the Technical RequirementsItem No. 8.We kindly ask you to consider reducing the maximum operating liquid temperature requirement to +50 °C. Such a revision would significantly increase the number of manufacturers able to participate and would substantially reduce the equipment cost without compromising its performance, provided that it remains suitable for the actual operating conditions.  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.Please find below offical response to your question(s):Requirements to the pump itm 8 will be amended as follows:1) Item 8. Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc.2) 1.9 Technical Requirements for Item 8: Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc.3) 1.9.1.4 Operating temperature range of the pumped liquid (at least): +5 °C to +50 °C.4) 1.9.1.5 The complete pump unit, including the integrated electric motor, mechanical seals, sealing elements, cable entry, power cable, float switch, built-in capacitor and thermal protection components, shall be suitable for continuous operation with pumped liquid temperatures up to +50 °C.5) 1.9.4.7 Ambient temperature: from 0 °C to +50 °C.The revised Schedule of Requirements will be published soon.Thank you.With best regards, Procurement Team

New clarification added: Dear UNOPS,Please find below our 2 questions regarding the bid RFQ/2026/63782:1. We kindly request a review of requirement 6.4 concerning the mandatory submission of documentation confirming the minimum rated bearing life (L10h).The requested confirmation requires identification of the exact bearing type/model installed in the offered equipment and preparation or endorsement of an L10h calculation by the bearing manufacturer or its authorized representative.However, for many internationally recognized pump manufacturers, including leading manufacturers of process and water pumps, information regarding the exact bearing type/model installed in a particular pump configuration is not disclosed in publicly available documentation and is often treated as proprietary information. Furthermore, bearing manufacturers generally do not possess complete information regarding the actual design loads, hydraulic loads, shaft configuration, operating speeds, and other equipment-specific parameters required for an accurate L10h calculation of the complete pump assembly.As a result, obtaining the required confirmation may depend on access to non-public design information and may create unnecessary barriers to participation for manufacturers whose equipment fully complies with the functional and performance requirements of the Technical Specification.Therefore, we respectfully request that UNOPS consider removing the requirement for mandatory submission of bearing L10h calculations/confirmations or, alternatively, allow compliance to be demonstrated through standard manufacturer technical documentation and warranty commitments without requiring direct confirmation from the bearing manufacturer.Such modification would maintain product quality requirements while ensuring equal treatment of all manufacturers and maximizing competition.2. The question regarding 1.9 Technical requirements for Item 8: We kindly request clarification regarding the combined requirements specified for Item 8, in particular:single-phase motor (1x230 V);built-in capacitor;float switch supplied as an integral component of the pump;corrosion-resistant stainless-steel construction;continuous operation with pumped liquid temperatures up to +90°C.Based on our market review, pumps designed for continuous pumping of dirty water at temperatures up to +90°C are typically industrial-duty units and are often supplied:with three-phase motors;without integrated float switches;without built-in capacitors;with external level control devices and motor protection systems;in cast iron execution suitable for hot contaminated liquids.Considering that the functional purpose of the equipment is the reliable pumping of dirty water at elevated temperatures, would the Purchaser accept technically equivalent solutions where:the pump is supplied with a three-phase motor instead of a single-phase motor;level control is provided by an external float switch or control panel rather than an integrated float switch;the pump does not require a built-in capacitor due to its motor design;the hydraulic and mechanical components are manufactured from cast iron or other industrial materials suitable for continuous operation with dirty water at temperatures up to +90°C?We believe that allowing such technically equivalent industrial solutions would significantly expand competition while maintaining the required operational reliability and performance of the equipment.  __CLARIFICATION RESPONSE__  Dear Bidder,Thank you for your clarification request.Please find below offical response to your questions:Question 1.The type, design and main technical characteristics of the bearings are key parameters in the design and calculation of the pump bearing arrangements. They are used by the manufacturer to confirm the permissible radial and axial loads, rotational speed, lubrication conditions, thermal operating conditions and calculated service life of the bearing arrangement.At the same time, the specific bearing model may not be indicated in the publicly available pump data sheet or catalogue due to the manufacturer’s technical documentation practices; however, this does not mean that such information is unavailable to the manufacturer. The relevant data may be contained in the manufacturer’s design, service or internal technical documentation and, where necessary, may be provided by the manufacturer or its official representative to confirm compliance of the equipment with the specified technical requirements.Furthermore, in order to confirm the nominal service life of the bearing arrangement in accordance with ISO 281, not only the bearing type and model, but also the calculated loads, rotational speed and other input parameters are essential. Therefore, the requirement to provide an L10h calculation or confirmation from the manufacturer is technically justified and is specifically intended to verify the actual compliance of the bearing arrangement with the specified service life requirement.Accordingly, the absence of information on the specific bearing model in a publicly available catalogue or pump data sheet does not, in itself, constitute grounds for concluding that the bearing cannot be identified and its characteristics documented. The Bidder may obtain the relevant confirmation from the pump manufacturer or its official representative.Question 2.Requirements to the pump itm 8 will be amended as follows:1) Item 8. Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc.2) 1.9 "Technical Requirements for Item 8:Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc."3) 1.9.1.4 Operating temperature range of the pumped liquid (at least): +5 °C to +50 °C.4) 1.9.1.5 The complete pump unit, including the integrated electric motor, mechanical seals, sealing elements, cable entry, power cable, float switch, built-in capacitor and thermal protection components, shall be suitable for continuous operation with pumped liquid temperatures up to +50 °C.5) 1.9.4.7 Ambient temperature: from 0 °C to +50 °C.The revised Schedule of Requirements will be published soon.Thank you.With best regards,Procurement Team 

New clarification added: Questions for Clarification of the Technical RequirementsItem No. 1, Clause 1.2.2.12.The technical specification states: “Distance between the faces of the suction and discharge flanges – 830 mm (an increase of up to +20% is permitted).”Could you please confirm whether a reduction of the installation length to 800 mm would be acceptable? If not, would it be acceptable to supply the pump unit with spacer pieces to achieve the required installation length of 830 mm (+20%)?Item No. 8.We kindly ask you to consider reducing the maximum operating liquid temperature requirement to +50 °C. Such a revision would significantly increase the number of manufacturers able to participate and would substantially reduce the equipment cost without compromising its performance, provided that it remains suitable for the actual operating conditions.Supply of Equipment from Different Manufacturers.We are the official representative and authorized service center for several leading European pump manufacturers in Ukraine.According to the technical requirements, we are able to offer pumps for all requested positions. However, the equipment would be supplied by different manufacturers. The main industrial pumps for Items 1-7 would be supplied by one manufacturer, while the pumps for Items 8-9 would be supplied by another manufacturer.We will assume full warranty and after-sales service responsibility for all supplied equipment.Could you please confirm whether a tender proposal under these conditions would be considered acceptable?    __CLARIFICATION RESPONSE__    Dear Bidder,Thank you for your clarification request.Please find below offical response to your questions:Question 1.Requirement 1.2.2.12 will be amended as follows:1.2.2.12 Distance between the faces of the suction and discharge flanges - 830 mm (an increase of up to +20% is permitted).Question 2.Requirements to the pump itm 8 will be amended as follows:1) Item 8. Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc.2) 1.9 Technical Requirements for Item 8: Drainage Pump for Dirty Water, submersible centrifugal type, intended for pumping dirty water, minimum degree of protection IP68, duty point of one pump: Q = 5-7 m3/h, H = 9-11 m, maximum pumped liquid temperature +50 °C, with single-phase electric motor 1x230 V, 50 Hz, complete with power cable and float switch - 1 pc.3) 1.9.1.4 Operating temperature range of the pumped liquid (at least): +5 °C to +90 °C.4) 1.9.1.5 The complete pump unit, including the integrated electric motor, mechanical seals, sealing elements, cable entry, power cable, float switch, built-in capacitor and thermal protection components, shall be suitable for continuous operation with pumped liquid temperatures up to +50 °C.5) 1.9.4.7 Ambient temperature: from 0 °C to +50 °C.Question 3.Requirement 1.1.9 will be amended as follows:1.1.9 To ensure a reasonable level of equipment standardization, limit the variety of spare parts and consumables, simplify maintenance procedures and personnel training, reduce spare parts inventory, and facilitate efficient warranty and after-sales support throughout the operational life, all offered Goods shall be limited to a maximum of two brands (trade marks). The Goods may be manufactured at different production facilities belonging to the respective Manufacturer or corporate group, provided that warranty and after-sales service support for the Goods of each individual brand is ensured in accordance with the requirements of this Technical Specification.The revised Schedule of Requirements will be published soon.Thank you.With best regards, Procurement Team