The Watts Reduced Pressure Zone Assembly, part number 0111787, is designed to protect potable water systems from contamination due to backsiphonage and backpressure. It features a compact design that is 70% lighter than traditional models, making it suitable for health hazard applications. The assembly consists of a stainless steel housing and sleeve, two independent torsion spring check modules, and a differential pressure relief valve. It is constructed from 304 (Schedule 40) stainless steel and includes replaceable elastomer check discs for enhanced serviceability. The maximum working pressure is 175 psi (12.1 bar), and it operates within a temperature range of 33¬8F to 140¬8F (0.5¬8C to 60¬8C). The product is compliant with national plumbing codes and is approved by the Foundation for Cross-Connection Control and Hydraulic Research at USC.
Series 957, 957N, 957Z 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 stainless steel body, sleeve and torsion spring check valves. Series 957, 957N, 957Z has a compact design that is 70% lighter than traditional designs, and is ideal for health hazard piping applications for protection against backsiphonage or backpressure. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).
| Watts | |
|---|---|
| Product Category | Uncategorized Products |
| Product Number | 0111787 |
| Product Name | Reduced Pressure Zone Assemblies, Stainless Steel |
