Reliable Riser Check Valve USA : The Reliable Riser Check Valve and Riser Check Valve is a general-purpose fire protection system check valve. The valves have grooved end connections and a removable faceplate, and are approved for either vertical or horizontal (hinge pin-up) installation. The Model CVE check valve incorporates a bronze seat and an EPDM-faced clapper. The Model CVE Riser Check Valve is designed […]