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Watts 3/4 In Lead Free Double Check Valve Backflow Preventer Assembly, Quarter Turn Shutoff, Single Top Entry

SKU: 3631937

$721.00

Manufacturer’s List Price

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Product Details

Watts 3631937

This 3/4'' lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and for contaminants at the service line entrance. This assembly consists of a lead free body construction, NPT end connections, quarter turn ball valve shutoffs, top mounted test cocks, two in-line independent positive seating check modules, captured springs, and replaceable check discs and seats.


  • UPC 098268209730
  • Online Product ID 3631937
  • Weight 4.76 lbs.
  • Material Bronze
  • Backflow Preventer Type Double Check Valve Assembly
  • Body Pattern In-Line
  • Buy American Act Compliant yes
  • Disc Material Silicone
  • Inlet Connection Size 0.75''
  • Inlet Connection Type Female Threaded
  • Inlet Shutoff Valve Type Quarter Turn Ball Valve
  • Inlet Thread Type NPT
  • Lead Free yes
  • Maximum Temperature Deg F 180
  • Maximum Working Pressure Psi 175
  • Minimum Temperature Deg F 33
  • Outlet Connection Size 0.75''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Outlet Shutoff Valve Type Quarter Turn Ball Valve
  • Pressure Operation Continuous
  • Protection Type Backpressure and Backsiphonage
  • Seat Material Engineered Plastic
  • Series LF007

Additional information

  • Modular compact design
  • Replaceable seats and seat discs
  • Lead free construction
  • Top entry

About This Brand

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