Newsletter Subscription

Register with your email and be among the first to learn about our new products, latest price updates, special deals and great offers.

      DOUBLE CHECK BACKFLOW PREVENTER

        MODEL:

        • SD-OSY-DCB
        • SD-NRS-DCB

        SD-OSY-DCB

        • The valve is designed to stop thereverse of flow of a liquid into a portable eater system. The proper installation of a back flow preventer must be done by a certified expert under local codes to assure the protection of the drinking water system.
        • The assembly shall consist of two repairable seating check modules with captured springs and rubber seat rings.
        • Service of all components shall be through a single easily removable cover and designed for ease of access.
        • The valve shall have a release valve to atmosphere.
        • With resilient OS&Y gate Valve
        • Flange comply with ANSI B16.1 Class 125 and all groove dimensions meet AWWA C606.
        • Maximum Working Pressure : 175 psi
        • Maximum Working Temperature : 60°C (140°F)

        SD-NRS-DCB

        • The valve is designed to stop thereverse of flow of a liquid into a portable eater system. The proper installation of a back flow preventer must be done by a certified expert under local codes to assure the protection of the drinking water system.
        • The assembly shall consist of two repairable seating check modules with captured springs and rubber seat rings.
        • Service of all components shall be through a single easily removable cover and designed for ease of access.
        • The valve shall have a release valve to atmosphere.
        • With resilient NRS gate Valve
        • Flange comply with ANSI B16.1 Class 125 and all groove dimensions meet AWWA C606.
        • Maximum Working Pressure : 175 psi
        • Maximum Working Temperature : 60°C (140°F)