8 in. Stainless Steel Flanged 175 psi Backflow Preventer
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Watts
Series 957-FS 8 in. Stainless Steel Flanged 175 psi Backflow Preventer
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Purchase history
Watts
Series 957-FS
8 in. Stainless Steel Flanged 175 psi Backflow Preventer
F111588
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Product Details
- Alert features available with add-on sensor connection kit
- 304 (Schedule 40) stainless steel housing and sleeve
- Features an integrated flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
- Groove couplings for ease of installation and pipe alignment
- Bottom mounted cast stainless steel relief valve
- Compact design allows small enclosures to be used
- Replaceable check disc rubber
- UL and FM outside stem and yoke resilient seated gate valves
- The maximum working pressure is 175 psi (12.06 bar)
Specifications
- ANSI:
- ANSI 61-G
- ASSE Standards:
- ASSE 1013
- AWWA:
- AWWA C-511-97
- Application:
- Commercial, Industrial
- CSA Certified:
- CSA B64.4
- Coating:
- Polymer
- Collection:
- Series 957-FS
- End Connection 1:
- Flanged
- End Connection 2:
- Flanged
- End Connections:
- Flanged
- FM Approved:
- Yes
- Height:
- 53-1/2 in
- Installation Type:
- Horizontal
- Lead Law Compliance Level:
- Applicable to Lead Leaching, Not Compliant
- Material:
- Stainless Steel, Plastic
- Material Type:
- 304, Silicone
- NSF:
- NSF 61-G
- NSF Certified:
- Yes
- Number of Handles:
- Two Handle
- Pressure - Maximum:
- 175 psi
- Recommended Valve Application:
- Commercial, Industrial
- UL Listed:
- Yes
- Valve Body Material:
- Stainless Steel
- Valve Body Style:
- Inline
- Valve Disc Material:
- Silicone
- Valve Seat Material:
- Engineered Plastic
- Valve Size:
- 8 in
- Valve Stem:
- Outside
- Valve Type:
- Reduced Pressure Zone Assembly
- Weight:
- 633 lb
- Width:
- 30 in