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Ames 4000SS

Stainless Steel Reduced Pressure Zone Assemblies

Series 4000SS Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of a stainless steel body construction with stainless steel internal parts. The bottom-mounted relief valve is located between the two check valves, making it suitable for installations against an outside wall. Series 4000SS has a compact design with a short lay length, ideal for retrofit installations. The 4000SS is designed for health hazard applications. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).


2 1/2 to 10 in. (65 to 250mm)

Series 4000SS Reduced Pressure Zone Assemblies are designed to provide protection of the potable water supply in accordance with national codes. This series can be used where approved by the local authority having jurisdiction on healthhazard cross connections. Series 4000SS features short lay length, light weight stainless steel body, corrosive resistant stainless steel relief valve, and patented camcheck assembly.