Double Check Valve Assemblies
Size(s): 2 1/2 to 3 in. (65 to 80mm)
Series 857 Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. They feature an epoxy coated iron body and compact design. Maximum Working Pressure: 175psi (12.1 bar).