WATTS® 0122711 LF757DCDA Detector Assembly, 4 in, Flange, Resilient Seated Gate Valve, 304 Stainless Steel Body, Double Check Backflow, 150 lb

1219170 MFG #: 0122711
$5,774.00 / ea

WATTS® Lead Free Detector Assembly, Series: LF757DCDA, 4 in Nominal, Flange, 175 psi Working, 150 lb, 33 to 140 deg F, Resilient Seated Gate Valve Ball Valve/Gate Valve type, Double Check Backflow Type, 304 Stainless Steel Body, 33-3/4 in L x 15-3/16 in W

This 4 in lead free testable double check detector assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of two independently operating tri-link check valves, two shutoff valves and four test cocks. It features a stainless steel housing and sleeve and is 70 percent lighter than traditional designs. 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. The maximum working pressure is 175 psi. It has outside stem and yoke shutoffs and a cubic ft meter.

  • Features
  • Stainless steel for corrosion resistance
  • Light weight construction
  • The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
  • UL/FM outside stem and yoke resilient seated gate valve
  • Standard/Approvals: Approved By The Foundation For Cross-Connection Control And Hydraulic Research At The University Of Southern California, ASSE 1048, AWWA C551-92, CSA B64.5, cULus Listed, NSF/ANSI 372, FM Approved, ANSI/AWWA Class D Flange
  • INCLUDES: CFM Meter, (2) Independent Tri-Link Check Modules Within a Single Housing, Sleeve Access Port, (4) Test Cocks and (2) Drip Tight Shut-Off Valves