BUREAU OF RECLAMATION DOI, PO BOX 25007 DFC D7812, DENVER, CO 80225-0007

43 -- PUMP, METERING, 1.7 GAL/HOUR SOL 142595RQ8100064 DUE 091495 POC Purchasing Agent, EVELYN BUTLER, 303-236-8040, X232 The Bureau of Reclamation, Denver Technical Center has a requirement for 14 Metering Pumps in accordance with the following specifications: Pumps shall deliver 0.36 to 1.7 gal/hour and over the entire range operate with 0.5-percent steady state flow accuracy, 2-percent flow repeatability, and no greater than 2-percent deviation from linearity. All wetted parts are Hasteloy C-276 for operation in Yuma, Arizona, in a corrosive salt water environment at temperatures of 10 to 50 degree C, and a process stream pH range of 2 to 10. The pumps meter single-chemical solutions of sulfuric acid (up to 93- percent concentration), 15-percent sodium hypochlorite, 20- percent ferric sulfate, and 29-percent ammonium hydroxide, and 5- percent sodium hexametaphosphate. The pump motor shall be 1/3 HP, TENV or TEFC, with variable speed DC drive, 4 to 20 milliAmp signal and operate on 115 VAC power. Suction and discharge check valves shall be ball type with replaceable seats for durability and easy replacement. Metering pumps shall be hydraulically actuated, diaphragm type. They shall be modular construction with drivecase, liquid end, hydraulic system and stroke adjuster available as independent, repairable cartridges. Metering pumps shall be Durco Evolution Series EV-1 or approved alternative. Pump drivecase shall be cast iron construction and convertible to dual feed configuration. Anti-friction bearings shall be used on all rotating components, and design shall allow motor rotation in either direction. Motors shall be NEMA C-face design to eliminate alignment problems. Drivecase shall be symmetrical in design to allow horizontal or vertical motor mounting and to permit multiplex operation of up to 10 feeds. Liquid end shall positively seal process liquid with fully captured TFE gaskets. Guided, single ball check valve shall be provided on suction and discharge ports of liquid head and shall have replaceable seat and ball guide. Check valves shall be offset from the main process cavity to prevent solids from settling onto the suction check valve. No contour or diaphragm support plates, which obstruct the liquid flow path, shall be permitted. Hydraulic system shall be fully contained and sealed within the hydraulic cartridge. No external tubes or by pass lines shall be permitted. Hydraulic plunger shall be hardened for long life. Each pump head shall abe provided with both positive air bleed valve and adjustable hydraulic relief valve at the highest point of the hydraulic system to facilitate relief of entrained air in the hydraulic fluid. Vacuum/pressure type hydraulic replenishment systems shall not be permitted. All pumps shall be provided with a manual micrometer-type stroke adjustment mechanism to independently adjust flow rate of each pump head. Stroke adjustment mechanism shall be fully sealed, and shall have a O percent - 100 percent scale with 1% increments. Delivery is required no later than October 6, 1995, FOB destination Yuma Desalting Plant, 7301 Calle Agua Salada, Yuma AZ 85364. This solicitation is reserved for small business, Standard Industrial Code is 3561, busines size standard is 500 employees. The contract awarded as a result of this solicitation shall contain the following FAR clauses: 52.203-3, 52.210-5, 52.213-1, 52.213- 2, 52.213-3, 52.219-1, 52.225-3, 52.232-1, 52.232-25, 52.232-8, 52.233-3, 52.243-1, 52.246-1, 52.247-34, 52.249-1. Questions on the technical requirements of this solicitation should be directed to Chuck Moody at (303) 236-6203 Ext. 234. Questions on this solicitation and quotations should be directed to Evelyn Butler, Purchasing Agent.(0241)

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