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Part of the LF757DCDA Series

Ordering Code: 0124728

UPC: 098268841350

Lead Free: YES

4 In Lead Free Double Check Detector Assembly, Domestic Osy Shutoff Valves, Cubic Feet Meter

This 4 IN lead free double check detector assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. It is designed for non-health hazard applications and may be installed under continuous pressure service to protect against both backpressure and backsiphonage. It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water and includes a cubic feet per minute meter that measures water flow. This assembly consists of two independently operating tri-link check valves, two shutoff valves, four test cocks, and UL/FM outside stem and yoke resilient seated domestic gate valves. It features a compact stainless steel housing and sleeve that is 70 percent lighter than traditional designs. The maximum working pressure is 175 psi (12.06 bar).

Product Features

  • Stainless steel housing and sleeve
  • No special tools required for servicing
  • Lightweight construction
  • Cubic feet per minute meter
Backflow Preventer Type Double Check Detector Assembly
Body Finish Stainless Steel
Body Material Stainless Steel
Body Pattern Inline
Brand Name Watts
Bypass Yes
Cap And Tether No
EANUCCCode 098268841350
Elbow Fitting No
Hazard Protection Level Non Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 4 IN
Inlet Connection Size-Metric 101.6 MM
Inlet Connection Type Flanged Joint
Inlet Shutoff Valve Type Outside Stem And Yoke Gate Valve
Inlet Thread Type Does Not Apply To Product
Lead Free YES
Maximum Temperature-Fahrenheit 140
Maximum Working Pressure-BAR 12.10
Maximum Working Pressure-PSI 175
Meter Type CFM
Minimum Temperature - Celsius 1.00
Minimum Temperature-Fahrenheit 33
Outlet Connection Size 4 IN
Outlet Connection Type Flanged Joint
Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve
Outlet Thread Type Does Not Apply To Product
Part Number 0124728
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Engineered Plastic
Series LF757DCDA
Strainer No
Type Kit

Product Accessories