metal gate valve

SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions. HI, The following Addendum is being issued for the subject Request for Quotation: 353009 SPARE GATE VALVES Technical Criteria as follows:

We require two units of a UHV all-metal gate valve. The valve body should be made from 316L stainless steel, with both the gate and bonnet seals constructed from metal (no Viton or other elastomers). The valve must achieve a leak rate of ? 10^-10 mbar·L·s^-1 at a 1 bar differential pressure. The flange-to-flange thickness of the valve body should not exceed 3 inches, and the inner diameter (ID) of the gate valve opening must be at least 2 1/2 inches.

Each side of the valve should have a 4 1/2-inch CCF flange with UNF (inch size) threads. The valve should be manually operated via a hand wheel-driven actuator and include an open/close visual indicator. Furthermore, the valve body must be capable of being heated to 300°C for bake-out procedures This Addendum modifies the Request for Quotation and must be acknowledged. Failure to acknowledge all addenda could make your proposal non-responsive.

Please confirm that the submitted proposal is not changed because of this addendum. If proposal sent is revised because of this, please submit the revised proposal. Please note that this requirement will be posted on SAM.gov as well. The following changes are hereby made to the appropriate documents contained the above-mentioned Request for Quotation (RFQ). All other terms and conditions of the RFQ remain the same. Thank you very much.

Kind Regards, Jhamie Serena Procurement Commodities Team SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park, CA 94025 P- 650-926-2201 Is there any room for additional discount such as for Academic, ICPT, GSA, or Government Institutions? Buy American Act Certification (BAA) applies to awards over $10,000. Representations & Certifications Rider is required. Once completed the Reps and Certs is valid for one year until renewal. If you have already completed one within the year please disregard.

Otherwise, please complete and return. All subcontractors are required to register in the System for Award Management (www.sam.gov). If possible, please provide a link to your webpage for published price list to substantiate for the prices quoted. The resulting purchase order will be issued on a fixed price basis. SLAC National Accelerator Laboratory Terms and Conditions for Fixed Price Commercial Supplies and Services (Rev. August 2023) will be made a part of the resulting order.

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