Product highlight on the back seating of API 600 Wedge Gate Valves

Information on Seating systems for abrasive & dirty service

API6D trunnion mounted ball valves with single piston effect seats (SPE) are designed to automatically release cavity over-pressure into the pipeline automatically using “self relieving seats”. Since body cavity and pipeline are isolated in the fully open and fully closed position, pressure trapped in the body cavity may be different than pressure in the line. […]