Bureau of Reclamation, Lower Colorado Regional Office, 400 Railroad Ave, Boulder City, NV 89005-2422

Z -- REHABILITATE PRESSURE REGULATING VALVE, HOOVER POWERPLANT, BOULDER CANYON PROJECT, ARIZONA-NEVADA SOL 00-SP-30-0042 POC Ms. Rebecca Hyche, Procurement Technician, Tel: (702) 293-8779, E-Mail: rhyche@lc.usbr.gov WEB: Visit our web site for the lates project status, http://www,kc,ysbr,giv.~g3100/con0042.html. E-MAIL: Contact us via e-mail, rhyche@lc.usbr.gov. The work to be performed under this solicitation consists of rehabilitation of the pressure regulating valve (PRV) for unit A4 at the Hoover Powerplant located near Boulder City, Nevada. The powerplant contains 19 hydroelectric units. The A4 PRV was manufactured by Allis-Chalmers. Replacement bushings, seal rings, gaskets, and packings will be required. The valve will be disassembled by the Contractor and non-embedded parts removed to an off-site facility of the of the Contractor for rehabilitation. Embedded or anchored parts shall be rehabilitated in place. Cavitation damage shall be repaired, exterior and interior of the valve shall be painted. The principal components of the work to be performed under the specifications are as follows: (1) Pre-shutdown measurements, (2) Installation of three pressure gauges, one in the control valve supply, on in the main piston drain line and one in the auxiliary space supply line, (3) Pre-teardown measurements including instrumentation and recording devices, (4) Measurements of components during disassembly, (5) Examination and report of component condition, corrosion and damage, (6) Refurbishment or replacement of critical bushings or sliding surfaces, (7) Refurbishment of bushings in linkages, (8) Record refurbished dimensions for all refurbished components, (9) Refurbishment of seats and sealing surfaces, (10) Record dimensions of seats and sealing surfaces, (11) Refurbishment of check valves and flow control valves, (12) Repair of cavitated surfaces in the energy dissipation chamber, (13) Repair of cavitated surfaces in the nozzle (disc and seats), (14) Coating of the energy dissipation chamber, (15) Coating of the inner body of the PRV, (16) Coating of the exterior surfaces of the PRV, (17) Lubrication and refurbishment of all lube fittings, tubing and lubrication channels, (18) Refilling dashpot with oil, (19) Readjust all linages to operational positions, (20) Test operation of PRV without water, (21) Test operation of PRV. The estimated cost range of this project is $100,001 to %500,000. The standard industrial classification code is 3491 and the small business size standard is 500 employees. This solicitation is unrestricted. All responsible sources may submit a bid which shall be considered by the agency. The estimated issuance date of the solicitation is June 26, 2000. The estimated date for receipt of proposals is July 26, 2000. the solicitation and specifications (except for the drawings) will be available from our web site on the day of issuance. Documents can be viewed without charge from our web site at the following address: http://www.lc.usbr.gov/~g3100/con0042.html. Documents may also be viewed at our office located at the Bureau of Reclamation, Management Services Office, Nevada Highway and Park Street, Annex Building, Rm AA-113, Boulder City, Nevada 89005. THERE IS A NONREFUNDABLE CHARGE OF $10 FOR EACH COMPLETE HARD COPY OF THE SOLICITATION. Copies of the solicitation may be requested in writing from the following address: Bureau of Reclamation, Lower Colorado Region, Attention: LC-3115, P.O. Box 61470, Boulder City, Nevada 89006-1470 and/or by facsimile at (702) 293-8499. Payment of the $10 charge for the plans may be made by check (payable to Bureau of Reclamation) or by credit card (Visa, Master Card, or American Express). Please provide a physical mailing address, contact name telephone and fax numbers. All packages are mailed by First Class USPS.***** Posted 06/08/00 (W-SN463045). (0160)

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