Supply, delivery and test of 2 dry submersible sewage pumps, motors, and control panel for Al-Mansourah main sewage pump station, Aden, Yemen

New clarification added: Question 1: Is a suction connection of DN 350 mm acceptable or not? Dear at UNOPS?Answer 1:  Please adhere to the requirement.Question 2: The RFQ was stated with N 3085 which is very small model from Flygt and for the required data sheet we had attached the pump curve. Kindly share us your technical confirmation and its cable length to proceed for quotation. Let us know either end MAS800 & PEM required for monitoring the same.Answer 2: The RFQ does not specify any brand or model, including Flygt N 3085. Bidders shall propose pumps that fully comply with the minimum technical requirements and tender conditions. References to specific models are not part of the RFQ. As per Form C, item 1.2.13, the motor cable shall be a minimum of 30 m. Monitoring shall be provided with any system that meets or exceeds the requirements.

New clarification added: Question 1: We kindly request you for an extension of the clarification period by four additional days.We are awaiting critical technical information from our manufacturers, which we expect to receive within the next 3-4 days. This information is essential for us to prepare a complete and accurate response. We would be grateful if you could approve this extension.Answer1: The tender deadline and tender clarification are extended. Pkease check eSourcingQuestion 2: Regarding the list of items outlined in the tender documents. At the top of the sheet, it states:“Supply, delivery and test of 2 dry submersible sewage pumps, motors, and control panel for Al-Mansourah main sewage pump station, complete with all required connections, gaskets, bolts and accessories, as specified herein technical specifications and BoQs, for AL-MANSOURAH MAIN SEWAGE PUMP STATION – ADEN, Yemen.”However, within the same sheet, it is also stated:“General Notes: The price includes Supply, Testing and Delivery of HDPE Pipes and Fittings to the NWSA – Marib Branch’s Warehouse” Please clarify whether the tender includes both sites mentioned above (Marib and Al-Mansourah – Aden), or if one of them was included in error. This will help us avoid any confusion in preparing the technical and financial proposals.Answer 2: Thank you for bringing this to our attention. The reference to “NWSA – Marib Branch’s Warehouse” was a typo. Accordingly, the tender scope applies only to Al-Mansourah Main Sewage Pump Station – Aden, Yemen, and no supplies are required in Marib. Please check the amended document in eSourcing.Questin 3:  We would like to request an extension of the tender submission deadline to allow sufficient time for a thorough understanding of the scope and to prepare a compliant and competitive offer.Answer 3: The tender deadline and tender clarification are extended. Pkease check eSourcingQuestion 4: We request to extend the deadline for closing date it need more time as per request the companiesAnswer 4: The tender deadline and tender clarification are extended. Pkease check eSourcingQuestion 5:  Please advise what is the TIME deadline on Monday 6th October 2025.. Answer 5: The tender deadline is 6th October

New amendment added #1: Amendment 1The purpose of the amendment is to:Extend tender deadline until 6 October 2025. Extender tender clarification deadline untill 1 October 2025Amend and upload document "Amendment (1)-List of items- EHC-AF3-WS-ADN-007" to delete the line "General Notes: The price includes Supply, Testing and Deliver of HDPE Pipes and Fittings to the NWSA – Marib Branch’s Warehouse."All other terms and conditions remain the same.

New clarification added: Question 1: Could you please confirm what type of wastewater this submersible pump is designed to handle? Answer 1: The pump must handle municipal wastewater, sewage, sludge, and high rag/fibrous material (Ref. Form C, Item 1.1.6).Question 2: Municipal wastewater? Are there any solids in it? Answer 2: Yes. The sewage contains solids. Pumps must have a self-cleaning, single-channel impeller with ≥120 mm free passage to handle solids effectively (Ref. Item 1.1.11). Question 3: Will the pumps be used above the water level? Answer 3: Yes. Installation is dry pit installation  (Ref. Item 1.1.5). Pumps must include a cooling jacket with closed-loop water or oil cooling system (Ref. Item 1.2.14). Question 4: Don't you need a coupling component? Is that correct?Answer 4:  Typically, a coupling (shaft or flexible coupling) is required between the motor and pump to transmit torque. However, the pump must include a baseplate with suction bend, inspection hole, and all required connections for proper installation (Ref. Item 1.1.13).Question 5:we need to know the liquid depth. In addition, we need to know whether you need a single pipe or a double pipe. Answer 5: Pumps are intended for typical dry pit operation depths. Connection shall be via single suction and discharge piping, DN 300 mm flanged (Ref. Items 1.1.9 & 1.1.10).