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  • Watts Series 957 Stainless Steel Flanged Backflow Preventer

    • Watts Series 957 6 in. Stainless Steel Flanged Backflow Preventer

    Part #W957NRSU

    | Item #1869734

    $7,147.62 each

    This product has been replaced by W957NRSFSU.

    Valve Size:

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    Product Details

    • Stainless steel housing and sleeve
    • Non-rising stem gate valves
    • Ball valve type test cocks
    • No special tools are required for servicing
    • 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)
    • 70% lighter than traditional designs

    Documents

    Specifications

    • ADA Compliant
      No
    • ANSI Specifications
      ANSI 61-G
    • ASSE Standards
      ASSE 1013
    • AWWA Specifications
      AWWA C-511 1997
    • Application
      Residential
    • BAA Compliant
      Yes
    • CSA Certified
      CSA B64.4
    • Collection
      Series 957
    • Color Finish
      Stainless Steel
    • Color Finish Category
      Stainless Steel
    • Depth
      45-19/50 in
    • End Connection 1
      Flanged
    • End Connection 2
      Flanged
    • End Connections
      Flanged
    • FM Approved
      No
    • Height
      45 in
    • High Pressure
      175
    • IAPMO Listed
      No
    • Installation Type
      Horizontal
    • Lead Law Compliance Level
      Lead Law Compliant and Certified
    • Lead Law Compliant
      Yes
    • Length
      43-1/2 in
    • Material
      Stainless Steel
    • Material Type
      304
    • 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
      6 in
    • Valve Stem
      Non-rising
    • Valve Type
      Reduced Pressure Zone Assembly
    • Weight
      276
    • Width
      26 in

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