... Initial cost, space and pipe support element installation. The Dual Plate, Wafer Check Valve employs two-spring-loaded plates hinged ... flow reversal takes place. All features put together make the Dual Plate Check Valve as the most efficient & versatile design. It ... F or RTJ, Wafer, Fully Lugged and GroovedHot tags: Dual Plate Check Valve, China manufacturer, factory, mill, supplier, cheapFull Lug ...