Supply and Delivery of Mechanical and Electrical Water Treatment Equipment for Hwiwa WTP in Anbar-LIRA III

New clarification added: Dear bidders,Kindly find the below calrifications and UNOPS responses:- In the second section of the ITB file, regarding the requirements for pump preparation, you mentioned supplying the pumps with the necessary operating accessories such as cables and cable trays. Are these quantities separate from the order for the cables and cable trays, or are they included in the quantities required in the price schedule (Excel sheet, Form C)?UNOPS response: As outlined in Section II (Schedule of Requirements), the requested pumps must be supplied fully complete with all of their specific standard operating accessories. The required quantities and specifications for cable trays and power/control cables are specified as separate, distinct line items in the Price Schedule (Form C1). Bidders shall price each item strictly according to its dedicated line item in Form C1.- Regarding the polyethylene tanks, is the required quantity 10 tanks (2 tanks per site) or one tank per site?UNOPS response: The total required quantity is clearly defined as ten (10) tanks in total, which corresponds to two (2) tanks per site across the 5 WTPs, as specified in Section II and the Price Schedule (Form C1).Best regards 

New clarification added: Dear Bidder,Kindly find the below clarification and UNOPS response: Question: we sent you some points that need clarification, but your response did not address them all. We need more details to get a complete picture, especially regarding the valves and electrical panels.UNOPS clarification: Bidders are strongly advised to thoroughly review the ITB dossier, particularly Section II (Schedule of Requirements) and the Technical Specifications. Offers must strictly comply with all stated parameters, dimensions, and configurations (e.g., valve face-to-face dimensions, cable specifications, and panel ratings). Bidders are not required or expected to provide items, accessories, or engineering design details that are not explicitly requested in the tender documents. Bids offering non-compliant specifications or unauthorized alternatives will be evaluated strictly against the published ITB requirements.Best regards 

New clarification added: D. IDB – INTAKE DISTRIBUTION BOARD    D.1- 26 kW Submersible Pumps – 2 Nos.        1. Please confirm the required Soft Starter make/model or approved equivalent.    2. Please confirm that an 80A circuit breaker is required for each 26 kW pump.    3. Please confirm the required motor protection and overload arrangement.    4. Please confirm whether a bypass contactor is required for each Soft Starter.    5. Please provide the required starting/stopping sequence.    6. Please confirm the required Local/Remote control arrangement.    7. Please provide the required Run/Fault/Trip feedback signals.    8. Please confirm whether the two pumps operate as Duty/Standby and whether automatic alternation is required.    9. Please provide any required interlock between the two submersible pumps.    ​E. MDB–IDB CONTROL CONNECTION    . We understand that the control cable between MDB and IDB is 6 Core × 2.5 mm². Please confirm.    1. Please provide the required function/allocation of each of the six cores.    2. Please confirm the required control voltage (e.g. 24VDC, 110VAC, 230VAC, etc.).    3. Please confirm whether the control cable shall carry Start/Stop, Run, Fault/Trip, Common/Return, and any additional signals.    4. Please provide incoming and outgoing cable sizes, quantities, and cable entry direction (top/bottom), if available.5.Please confirm the earthing system (TN-S, TN-C-S, TT, etc.) and required earth/neutral arrangement.6. Please provide the required protection coordination/selectivity requirements, if available.7. Please confirm whether surge protection device (SPD), phase failure/sequence relay, under/over-voltage protection, or other monitoring devices are required.8. Please confirm whether an Emergency Stop circuit is required for each pump or for the complete system.UNOPS Response for IDB item: Please adhere to the ITB requirements and technical specifications. The scope under Item E2 is strictly limited to the supply and factory testing of the Intake Distribution Board (IDB) suitable for controlling two (2) 26 kW submersible pumps, and the supply of the control cable (Item E6: 6C × 2.5 mm² Cu/PVC) strictly as detailed in Section II and the Technical Specifications. The IDB shall be rated for operation at 50°C ambient temperature, complete with 80A circuit breakers, 26 kW soft starters, digital multimeters (V, A, Hz), indicator lamps, and required internal wiring, protection, and control components suitable for ON/OFF control from the MDB through the control cable. Bidders are required to submit complete manufacturer data sheets with their bid for UNOPSPlease provide the latest approved electrical drawings, if available, including the MDB/IDB Single Line Diagram (SLD), load schedules, control schematics, cable schedules, and General Arrangement (GA) drawings.UNOPS response: Bidders shall base their technical offers strictly on the minimum technical specifications, functional descriptions, and parameters defined in Section II (Schedule of Requirements) and the Technical Specifications of the ITB. As the scope of this tender is strictly limited to equipment supply, factory testing, and delivery, the successful bidder will be required to submit their proposed Single Line Diagrams (SLD), panel dimensions, and technical data sheets for UNOPSPlease provide the complete electrical distribution arrangement showing the incoming supply, MDB, IDB, SDBs, and all associated loads. if its available.UNOPS response: The required technical offer must be prepared according to the equipment specifications and functional criteria stated in Section II and the Technical Specifications. Since the tender scope is strictly limited to supply and factory testinBest regards,

New clarification added: A. GENERAL REQUIREMENTS    1. Please provide the available short-circuit current at the MDB incoming point, or confirm the required short-circuit rating (Icu/Ics).UNOPS response: Please adhere to the ITB requirements and standard IEC/Iraqi engineering standards for 400V distribution systems.2.Please confirm the MDB main incomer rating (400A) and whether 400A is the required breaker rating or only the board rating.    UNOPS response: Please adhere to the ITB requirements. The Main Distribution Board (MDB) shall be rated at 400A and supplied complete with a 400A main incoming circuit breaker and all required protection devices as specified in Section II and Technical SpecificationsB. MDB – MAIN DISTRIBUTION BOARD    1. Please confirm the MDB incoming breaker type, rating, and required protection functions.    2.  Please confirm the required busbar short-circuit withstand capacity (Icw/Ipk) for the MDB    3. Please confirm the requirements for neutral and earth bars.    B.1- 75 kW Centrifugal Pumps – 2 Nos.        1. Please confirm the required Soft Starter make/model or approved equivalent.    2. Please confirm whether a bypass contactor is required for each Soft Starter.    3. Please confirm the required motor protection arrangement, including overload and short-circuit protection.    4. Please confirm the required operating/control philosophy: Local, Remote, Auto, Manual, or combination.    5. Please provide the required Run, Fault, Trip and other feedback signals for each pump.    B.2- 1.5 kW Alum Mixers / Dosing Pumps – 4 Nos.        1. Please confirm the required starting method (DOL or other).    2. Please confirm the protection type and rating for each unit.    3. Please confirm the required control and feedback signals.    B.3- 22 kW Existing Air Blowers – 2 Nos.    1. Please provide the existing motor nameplate/data sheet for the two 22 kW air blowers, including rated voltage, FLA, frequency, power factor, and efficiency.2. Please confirm the existing starting method: DOL, Star-Delta, Soft Starter, VFD, or other.    3. Please confirm the required breaker rating and motor protection arrangement.    4. Please provide the existing control philosophy and required control/feedback signals.    5. Please provide existing drawings/details of the blower control system, if available.    B.4- MDB Spare Feeders        1. Please confirm whether the spare feeders shall include outgoing terminals and cable termination provisions.    C- MDB Control & Monitoring    1. Please provide the complete control philosophy for the MDB.    2. Please provide the required Start/Stop commands for each controlled equipment.    3. Please confirm the required Run, Fault, Trip and Local/Remote feedback signals.  Please confirm whether any Emergency Stop circuit is required  4. Please provide all required interlocks between pumps, blowers, mixers, and other equipment.   5. Please confirm the function of each indicator lamp required on the MDB.        UNOPS Response for MDB Item: Please adhere to the ITB requirements and technical specifications.The scope under Item E1 is strictly limited to the supply and factory testing of the Main Distribution Board (MDB) as detailed in Section II and the Technical Specifications. The MDB shall be rated 400A (400V, 3-Phase, 50Hz, IP54, rated for up to 50°C ambient temperature) and complete with a 400A main incoming circuit breaker, high-conductivity copper busbars (including neutral and earthing), digital multimeters (V, A, Hz), indicator lamps, and spare 100A circuit breakers.Integrated soft starter systems, circuit breakers, and standard motor protections (overload, short-circuit, phase failure, under/over-voltage) must be provided for two (2) 75 kW centrifugal pumps, four (4) 1.5 kW alum mixers/dosing pumps, and two (2) 22 kW existing air blowers strictly in accordance with the specified parameters.Bidders shall submit complete technical data sheets for the mentioned components  

New clarification added: Dear Bidders,Kindly find the below clarifications and UNOPS responses:1. Please Confirm quantity/ Length for Supply of Power Cable 4C x 10 mm² Cu/XLPE/PVC. As the length is not mentioned in the price schedule. UNOPS response: Please note that Power Cable 4C x 10 mm² is not included or required in the price schedule (Form C1) or Section II of this ITB. Bidders shall price strictly according to the items, specifications, and quantities listed in the Price Schedule and tender documents.2. Butterfly Valve with Gearbox – Item M3.1The specification indicates a face-to-face dimension of 60 mm. The available standard size is 56 mm for DN150 (6 inches).Kindly confirm whether the available 56 mm dimension is acceptable as an alternative to the specified 60 mm.3. Flange Gasket and BoltsPlease clarify whether the flange gaskets and connecting bolts are to be supplied by the Buyer or included in our scope of supply.If they are to be supplied by us, kindly provide the required specifications, including:Gasket type and material.Gasket thickness.Bolt diameter and length.Required quantity 4. Control Cable – Item E6Please clarify whether the required control cable shall be a multi-core round cable or a flat cable.The available cable is a 7-core round cable with a conductor size of 2.5 mm².Kindly confirm whether this cable is acceptable.5. Power Cable – Item E7The available power cable is a 4-core, 2.5 mm² flexible cable.Please confirm whether this cable specification is acceptable for the intended application.UNOPS response: Please adhere to the ITB requirements.6. Galvanized Steel Test Cable/Tray – Item E8Should the galvanized steel section be perforated at the base and sides, or should it be a solid type?The required material thickness has not been specified. Please advise the required thickness.For wall mounting, the available arrangement is two mounting brackets per meter. Please confirm whether the galvanized steel section is intended to be installed on the wall or ceiling.Please clarify whether the following accessories are required:Angles/bendsTee/triple jointsCross/intersection piecesReducersOther standard fittings and accessoriesApproximately 99% of the required components it manufactured locally in Baghdad. Each standard section will be 2.5 meters in length, while maintaining the required technical specifications.We can also provide the  data sheet of raw material documentation for the galvanized steel raw material proposed for manufacturing.UNOPS response for Cable Tray Item: Please adhere to the ITB requirements and technical specifications. All supplied cable trays must be hot-dip galvanized steel, supplied complete with matching covers, mounting supports, joints, bends, reducers, and all standard fittings necessary for a complete and functional installation as described in Section II and the Technical Specifications. Bidders shall submit complete manufacturer data sheets for the proposed cable trays and accessories