957 Reduced Pressure Backflow Preventer, 4 in, Groove, 304/304L Stainless Steel
PartWTT957NRS4
MFG0111604
Description
WATTS®, 0111604, Reduced Pressure Zone Assembly, Series: 957, 4 in Nominal, Grooved End Style, 175 psi Pressure, 33 to 140 deg F, Resilient Seated Gate Valve Ball Valve/Gate Valve, 304 Stainless Steel Body, 33-3/4 in L x 11-3/16 in W Dimensions
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- Ball valve type test cocks
- No special tools required for servicing
- Compact design allows small enclosures to be used
- Groove couplings allow for easy installation and pipe alignment
- 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 modules for ease of serviceability
- 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
- Non-rising stem resilient seated gate valve
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.
| Nominal Size | 4 in |
| End Style | Groove |
| Body Material | 304/304L Stainless Steel |
| Series | 957 |
| Ball Valve/Gate Valve Type | Resilient Seated Gate Valve |
| Dimensions | 33-3/4 in L x 11-3/16 in W |
| Pressure Rating | 175 psi |
| Temperature Rating | 33 to 140 deg F |
| Brand | WATTS® |
| UNSPSC | 40141600 |
| Alternate Part Number 1 | 957-NRS 4 |
| Country of Origin | US |
| Manufacturer | Watts Water Technologies |
| UPC | 098268122541 |
| Manufacturer Part Number | 0111604 |
Sleeve and Torsion Spring Check Valves
1 Year Limited
Approved By The Foundation For Cross-Connection Control And Research At The University Of Southern California|ASSE 1013|AWWA C551-92|cCSAus B64.4|NSF/ASNI 61-G|PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.
Health Hazard
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WATTS®957 Reduced Pressure Backflow Preventer, 4 in, Groove, 304/304L Stainless Steel
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