Febco®, 0683040, Double Check Valve Assembly, In-Line Small Diameter, Series: LF850, 1 in Nominal, NPT End Style, 175 psi Pressure, 32 to 140 deg F, Quarter-Turn Ball Valve Ball Valve/Gate Valve, Cast Copper Silicon Alloy Body, 12-1/2 in L Dimensions, Import

This 1 in lead free small diameter double check valve assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and for contaminants at the service line entrance. This assembly consists of a lead free body construction, NPT end connections, quarter turn ball valve shutoffs, top mounted test cocks, two in-line independent positive seating check modules, captured springs and replaceable check discs and seats.