Flowserve SW-701 Check Valve

The Flowserve Vogt SW-701 Check Valve (MPN SW-701 / B-45269 R11) is an automatic backflow prevention device designed for high-pressure fluid systems, protecting pumps and downstream equipment from reverse flow. It is a 3/4 in nominal valve with a pressure class of 800 and a 1975 psi rating, featuring a forged ASTM A105 carbon steel body and CR-13 (13% chromium) trim for reliable service. This valve is intended for steam, condensate, oil, gas, and process fluids and is commonly installed in power generation facilities, refinery process units, petrochemical plants, and industrial utility systems where automatic backflow prevention is required. Typical replacements include Vogt 45271 Series Check Valves and Vogt Class 800 forged steel check valves in 3/4 in, reflecting its role within the Vogt/Flowserve product family for high-pressure applications.