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

Part #W957NRSX

| Item #2148416

$15,720.60 each

This product has been replaced by W957NRSFSX.

Valve Size:

8 in
  • Quantity

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Product Details

  • 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
  • Unmatched ease of serviceability
  • Bottom mounted cast stainless steel relief valve
  • Lead-Free

Specifications

  • ADA Compliant
    No
  • ASSE Standards
    ASSE 1013
  • AWWA Specifications
    AWWA C-511
  • Application
    Health Hazard
  • BAA Compliant
    Yes
  • CSA Certified
    CSA B64.4
  • Collection
    Series 957
  • Color Finish
    Stainless Steel
  • Color Finish Category
    Stainless Steel
  • Depth
    51-22/25 in
  • End Connection 1
    Grooved
  • End Connection 2
    Grooved
  • End Connections
    Grooved
  • FM Approved
    Yes
  • Fitting Size 1
    8 in
  • Fitting Size 2
    8 in
  • Fitting Sizes
    8 in
  • Height
    29-5/8 in
  • IAPMO Listed
    No
  • Installation Type
    Horizontal
  • Lead Law Compliance Level
    Lead Law Compliant and Certified
  • Lead Law Compliant
    Yes
  • Length
    49-3/4 in
  • Material
    Stainless Steel
  • Material Type
    304
  • Maximum Pressure
    175 psi
  • Maximum Temperature
    140
  • Minimum Temperature
    33
  • NSF Certified
    Yes
  • NSF Specifications
    NSF 61G
  • Number of Handles
    Two Handle
  • Product Type
    Reduced Pressure Zone Assembly
  • Recommended Valve Application
    Water
  • UL Listed
    No
  • Valve Body Material
    Stainless Steel
  • Valve Body Style
    Inline
  • Valve Disc Material
    Rubber
  • Valve Operator
    Wheel Handle
  • Valve Seat Material
    Engineered Plastic
  • Valve Size
    8 in
  • Valve Stem
    Non-rising
  • Valve Type
    Reduced Pressure Zone Assembly
  • Weight
    441
  • Width
    30 in