... cost, space and pipe support element installation. The Dual Plate, Wafer Check Valve employs two-spring-loaded plates hinged ... .F or RTJ, Wafer, Fully Lugged and GroovedHot tags: Dual Plate Check Valve, China manufacturer, factory, mill, supplier, cheapFull Lug ... has low cracking pressure. Disc open 80% to ensure positive closing Materials and trims available for all services within temperature ...