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.
WATTS® Reduced Pressure Zone Assembly, Series: 957, 4 in Nominal, 175 psi, 33 to 140 deg F, Resilient Seated Gate Valve, 304 Stainless Steel Body, 33-3/4 in L x 11-3/16 in W, Domestic
| Series | : | 957 |
| Nominal Size | : | 4 in |
| Pressure Rating | : | 175 psi |
| Temperature Rating | : | 33 to 140 deg F |
| Ball Valve/Gate Valve type | : | Resilient Seated Gate Valve |
| Body Material | : | 304 Stainless Steel |
| Dimensions | : | 33-3/4 in L x 11-3/16 in W |
| Domestic/Import | : | Domestic |
- Replaceable check disc rubber
- Extremely compact design
- 70% lighter than traditional designs
- 304 (SCH 40/STD) stainless steel housing and sleeve
- Groove fittings allow integral pipeline adjustment
- Patented torsion spring check provide lowest pressure loss
- Unmatched easy of serviceability
- The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
- Bottom mounted cast stainless steel relief valve
- UL/FM outside stem and yoke resilient seated gate valve
Instruction/Installation Manual