Special Teflon seat, making bubble-tight seals possible for over 90% of set pressures per spec API 527. Meets A.S.M.E. Boiler and Pressure Vessel Code, Section VIII requirements. Meets AD-Merkblatt A2 certified by TUV. Especially recommended for those applications where noxious or expensive liquids or gases place a premium on seal quality. Works with set pressures to 400 psig, and temperatures from cryogenic to 400 Farenheit. Our safety relief valves meet the following specifications: * Compressed Gas Association S-1.2 and S-1.3. * V-4301 (Cryogenic Non-Oxygen Gas) * V-4401 (Oxygen) * ASME sec. VIII * API 527 * AD-Merkblatt A2 We clean and package all of our RXSO valves for use in oxygen service in compliance with the Compressed Gas Association's Specification G-4.1. Other cleaning specifications we meet include: * 4WPI-SW7003 * ES.660.503 * GS-38 * GS-40 Each valve is set, tested, retested and sealed at the factory to the customer's specifications. Rockwood Swendeman can provide you with reliable, high quality safety relief valves, at the most competetive price in the industry and our lead time on most orders is two weeks or less. BSP threads are available on most sizes. Materials and Dimensions | Pressure Relief Valve Capacity Calculations Download product literature on our RXSO Valve! Product Literature is in PDF format which requires Adobe Reader. This can be downloaded freely by clicking on the following link. Any adjustments or repairs should be done by Rockwood Swendeman at our facility. We have 50 plus years experience as a world leader in the manufacture and assembly of reliable safety relief valves for the industrial gas industry. Today many multinational firms in the industry rely on quality Rockwood Swendeman valves. We manufacture bronze and stainless steel valves for air, gas and liquid service.

Back To Product Information Page | Home Rockwood Swendeman is a Division of Spence Engineering Company, INC. Teflon® is a registered trademark of the DuPont Corporation