Series 957 8 in. 304 Stainless Steel Grooved 175 psi Backflow Preventer

Part #W957NOSYX  |  Item #2148554  |  Manufacturer Part #0111594

$13,589.80 EACH

Valve Size:

8 in

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Product Details

  • 304 (Schedule 40) stainless steel housing and sleeve
  • UL and FM outside stem and yoke resilient seated gate valves
  • Approved for horizontal N pattern installation
  • Replaceable check disc rubber
  • Bottom mounted cast stainless steel relief valve
  • Compact design allows small enclosures to be used
  • Patented torsion spring check modules for ease of serviceability
  • Groove couplings for ease of installation and pipe alignment
  • The maximum working pressure is 175 PSI (12.06 BAR)

Lead Law Compliant



ADA Compliant: No

BAA Compliant: Yes

Collection: Series 957

Color Finish: Stainless Steel

Color Finish Category: Stainless Steel

Depth: 67-19/50 in

End Connection 1: Flanged

End Connection 2: Grooved

End Connection 3: FNPT

End Connections: Flanged x Grooved x FNPT

Fitting Size 1: 8 in

Fitting Size 2: 8 in

Fitting Sizes: 8 in

Handle Material: Steel

Height: 40 in

Lead Law Compliant: Yes

Length: 4-43/50 in

Material: Stainless Steel

Material Type: 304

Maximum Pressure: 175 psi

Maximum Temperature: 110

Minimum Temperature: 33

Pressure Class: 400#

Recommended Valve Application: [Gas, Oil, Steam, Water]

UL Listed: Yes

Valve Body Material: Forged Brass

Valve Body Style: N Pattern

Valve Seat Material: PTFE

Valve Size: 8 in

Valve Type: Backflow Preventer

Weight: 709

Width: 67-1/2 in