Supply and Delivery of Pumping and Pipeline Materials for Reservoirs and Water Distribution Network in Kassala & Port-Sudan, Sudan.

New clarification added: Question: Dears in UNOPS1. Lot-1, Items# 2.1, pumps, the required range of flow 250–300 m3 at heads of 100–150 can not be met with 90kw power, the motor power shall be increase and could reach 134kw power capacity max, however the duty point can be still ranging between 104kw to 134kw.This power tange shall be refelcted into item#1.1 VFD.Therefore, UNOPS is kindly requested to revise the operating parameters of the pump and adjust the flow and the head or the power to match, also to rvise the VFD power accordingly.2. Lot-1, Item#8, Joints and Connections between DCI & HDPE, UNOPS to decide which type they need it, EPDM Push-on rubber Joint or DI universal flange adaptor.Dear Bidder,Thank you for your interest in this tender. Answers: Q 1: The bidder should ensure the productivity and the head as described in the BOQ, but he can change the KW power to the minimum best optimized power to reduce the cost of the operation.Q 2: The connection between HDPE and DCI is flanged adaptor connectionBest RegardsProcurement UnitUNOPS Sudan Office.  

New clarification added: Question: Dears in UNOPSAddtional clarification as follow:1. In lot-1, F (Waw Nour), Item#1 the pumps, its mentioned the motor power to be 11Kw, with such power the required operating parameters of 100m3 flow and 70m head cannot be achieved, please review the parameters and provide the correct motor power or ammend the parameters to match the motor power.Dear Bidder,Thank you for your interest in this tenderAnswers: 1. In lot-1, F (Waw Nour), Item#1 the pumps, its mentioned the motor power to be 11Kw, with such power the required operating parameters of 100m3 flow and 70m head cannot be achieved, please review the parameters and provide the correct motor power or ammend the parameters to match the motor power. The pump discharge is 36 (m³/h) and the head is 44 m.Best RegardsProcurement UnitUNOPS Sudan Office. 

New clarification added: Question: Dear Sir/Madam,Greetings,With reference to the tender documents, we would appreciate your clarification on the following technical points related to the pump specifications and suction/discharge piping:Pump Specifications:We have noticed that the specified flow rate and total head of the pumps do not appear to be consistent with the required motor power indicated in the tender documents. Kindly confirm the correct design flow rate, total head, and required motor power for each pump and  the unit of measurement for the specified flow rate has not been clearly indicated, is  in cubic meters per hour (m³/h), cubic meters per minute (m³/min), or cubic meters per day (m³/day)..Suction and Discharge Piping Accessories:The requirements for the suction and discharge lines have been provided; however, the quantity and number of connection accessories required for each pump have not been clearly specified. Kindly clarify the required quantities .Dear Bidder,Thank you for your interest in this tenderAnswers: 1- A. Pump Specifications:We have noticed that the specified flow rate and total head of the pumps do not appear to be consistent with the required motor power indicated in the tender documents. Kindly confirm the correct design flow rate, total head, and required motor power for each pump and  the unit of measurement for the specified flow rate has not been clearly indicated, is  in cubic meters per hour (m³/h), cubic meters per minute (m³/min), or cubic meters per day (m³/day)..Please prioritize matching the specified flow rate and total head, selecting the lowest motor power rating (KW) capable of meeting these performance requirements.1-B.  The unit of measurement for the specified flow rate has not been clearly indicated, is  in cubic meters per hour (m³/h), cubic meters per minute (m³/min), or cubic meters per day (m³/day)..  The unit measurement is (m³/h)2- Suction and Discharge Piping Accessories:The requirements for the suction and discharge lines have been provided; however, the quantity and number of connection accessories required for each pump have not been clearly specified. Kindly clarify the required quantities .For each pump: All accessories are for 6 inches pipe.·       12 m Ductile Iron pipe·       1 Suction Isolation Valve·       1 Strainer·       1 Discharge Isolation valve·       1 Check Valve·       Air vacuum valve·       2 (Tee) 6x6·       1 Pressure gauge·       2 (90 Bend Elbow)·       2 (45 Bend Elbow)·       2 Flanged adaptors·       1 Reducer·       Bolts, nuts washers, gaskets  Best RegardsProcurement UnitUNOPS Sudan Office. 

New clarification added: Question: Dear Sir/Madam,We would like to get the drawings of all valves, and material. Is ist stainlessteel or carbon steel?Among the HPDE pipes requested, we need to know if its plain HDPE pipes without any external quoting?During loading, are we allowed to load smaller diameter sizes into smaller sizes to save on transportation costs or we bandle each size separately?Dear Bidder,Thank you for your interest in this tenderAnswers:1- We would like to get the drawings of all valves, and material. Is ist stainlessteel or carbon steel?This tender is for material supply to the State Water Corporation only. As there are no construction works involved, no drawings are applicable or attached.2- Is ist stainlessteel or carbon steel? Both stainless steel and Carbon steel are accepted3- Among the HPDE pipes requested, we need to know if it’s plain HDPE pipes without any external quoting? Both internal and the external should be smooth and Plain. 4- During loading, are we allowed to load smaller diameter sizes into smaller sizes to save on transportation costs or we bandle each size separately?It will not be allowed as it might harm the pipes.Best RegardsProcurement UnitUNOPS Sudan Office. 

New clarification added: Question: Dears in UNOPSYou are kindly requested to provide clarification for the followings:1.     Did UNOPS has any preferences for the pumps and VFD brand?2.     In lot-1, F (Waw Nour), item#2 the suction & discharge pipes, its mentioned as GI while the provided specifications are for HDPE, please confirm the pipes materials.3.     The required cables are meant for connecting the VFDs to the MCC, please confirm NO cables required to connect the pumps to the VFDs.4.     Please provide the types of valves in both lots.5.     Please confirm all the materials for both lots shall be delivered to Red Sea Water Corporation in Portsudan EXCEPT the items under (F) of Lot-1 to be delivered to Kassala.6.     Please advise whether custom exemption can be granted by UNOPS or not?Dear Bidder,Thank you for your interest in this tenderAnswers: 1.     Did UNOPS has any preferences for the pumps and VFD brand? UNOPS prefers the European & Japanese made like Grundfos, Caprari, Pentax. Or equivalent. andfor VFD: Danfos, ABB, Schnider. Or equivalent. 2.     In lot-1, F (Waw Nour), item#2 the suction & discharge pipes, its mentioned as GI while the provided specifications are for HDPE, please confirm the pipes materials. HDPE are the suction and discharge pipes.3.     The required cables are meant for connecting the VFDs to the MCC, please confirm NO cables required to connect the pumps to the VFDs.? Confirmed. The $35\text{ mm}^2$ 3-core cables for the pumps to the VFDs are not included in this quote and will be provided in a separate quotation.​4.     Please provide the types of valves in both lots. The valves are gate valves DCI and PN 16.5.     Please confirm all the materials for both lots shall be delivered to Red Sea Water Corporation in Portsudan EXCEPT the items under (F) of Lot-1 to be delivered to Kassala. We confirm that all items across both lots are scheduled for delivery to the Red Sea Water Corporation in Port Sudan, with the exception of Lot-1 (F), which is designated for delivery to Kassala.6.     Please advise whether custom exemption can be granted by UNOPS or not? Due to tight project schedules and the extensive processing time for custom exemptions in this country context (typically 2–3 months). UNOPS is targeting local suppliers to avoid clearance delays and keep the project on schedule.Best RegardsProcurement UnitUNOPS Sudan Office.