Series 957 3 in. Stainless Steel Grooved Backflow Preventer

Part #W957DNRSM  |  Item #4384691  |  Manufacturer Part #0792320

$9,012.50 EACH

Valve Size:

3 in
Packaging Info:
  • Quantity Per 
  • Each: 1
  • Inner pack: 1

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Product Details

  • Stainless steel housing and sleeve
  • Domestic non-rising stem gate valves
  • Ball valve type test cocks
  • No special tools are required for servicing
  • 2-1/2 in., 3 in. and 4 in. sizes available with quarter-turn ball valve shutoffs
  • Replaceable check disc rubber
  • Extremely compact design
  • 70% lighter than traditional designs
  • Groove fittings allow integral pipeline adjustment
  • Patented torsion spring checks provide lowest pressure loss

Lead Law Compliant



ADA Compliant: No

ANSI Specifications: ANSI 61-G

ASSE Standards: ASSE 1013

AWWA Specifications: AWWA C-511 1997

BAA Compliant: Yes

CSA Certified: CSA B64.4

Collection: Series 957

Color Finish: Stainless Steel

Color Finish Category: Stainless Steel

Depth: 33-2/25 in

End Connection 1: Grooved

End Connection 2: Grooved

End Connections: Grooved

FM Approved: No

Height: 23 in

High Pressure: 175

IAPMO Listed: No

Installation Type: Horizontal

Lead Law Compliant: Yes

Length: 31-3/4 in

Material: Stainless Steel

Material Type: 304

Maximum Temperature: 110

NSF Certified: Yes

NSF Specifications: NSF 61-G

Number of Handles: Two Handle

Recommended Valve Application: Health Hazard, Water

Schedule Class: 40

Temperature Range: 33 to 140 Deg F (0.5 to 60 Deg C)

UL Listed: No

Valve Body Style: Inline

Valve Disc Material: Rubber

Valve Operator: Wheel Handle

Valve Seat Material: Engineered Plastic

Valve Size: 3 in

Valve Stem: Non-rising

Valve Type: Reduced Pressure Zone Assembly

Weight: 134

Width: 22 in