709 - Double Check Valve Assembles
  Series 709 Double Check Valve Assemblies prevent the reverse flow of polluted water from entering into the potable water supply. It has a modular check design for easy maintenance and epoxy coated (FDA approved) cast iron body construction. Series 709 is ideal at referenced cross-connections identified in non-health hazard applications. Check with local inspection authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).
Size Range: 2 1/2 to 10 in. (65 to 250mm)