1-1/2 in Backflow Preventer Check Valve Assembly

Engineered for installation on potable water lines, this check valve assembly provides critical protection against both backsiphonage and backpressure of contaminated water into the supply system. Rated for operation at pressures up to 175 psi and temperatures reaching 180 degrees, the unit is designed for environments where potential health hazards exist. The assembly features NPT connections and allows for maintenance of the first and second checks without requiring the removal of the relief valve or the entire device from the line, while the shared access cover ensures that test cocks remain accessible from the top for routine inspection.