4 in Reduced Pressure Principle Backflow Preventer, Check Valve Assembly

SPECIAL ORDER ITEM. Review Returns Policy before purchase. This reduced pressure principle backflow prevention assembly is engineered for installation on potable water lines to provide protection against both backsiphonage and backpressure. The unit features a main body and access cover constructed from stainless steel, paired with a seat ring and check valve made of NORYL. It is equipped with full port gate valves and utilizes EPDM seat disc elastomers for reliable sealing. Certified to NSF/ANSI/CAN 61 and 372 standards and ASSE 1013 listed, this assembly is rated for a maximum pressure of 175 psi and temperatures up to 140 degrees Fahrenheit. The flanged connection design ensures a secure integration into industrial or commercial plumbing systems requiring high-capacity backflow protection.