WATTS® LF757DCDA Lead Free Double Check Detector Assembly, 6 in, Flanged, 150 lb, 304 Stainless Steel

1220061 MFG #: 0122712
/ ea

WATTS® Double Check Detector Assembly, Series: LF757DCDA, 6 in Nominal Size, Flanged, 175 psi Working, 150 lb, 33 to 140 deg F, 304 Stainless Steel Body, 43-1/2 in L

This 6 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. It has outside stem and yoke shutoff valves and a cubic ft meter. The maximum working pressure is 175 psi.

  • Features
  • Stainless steel for corrosion resistance
  • Extremely compact design
  • 70% lighter than traditional designs
  • Unique tri-link spring check provides lowest pressure loss
  • Unmatched easy of serviceability
  • Replaceable check disc rubber
  • 304 (SCH 40/STD) stainless steel housing and sleeve
  • CFM: Cubic feet per minute meter
  • OSY: UL/FM outside stem and yoke resilient seated gate valves
  • Lightweight construction
  • 150 lb ANSI/AWWA CL D flanged
  • The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
  • Standard/Approvals: Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California, AWWA C551-92, ASSE 1048, CSA B64.5, cULus Listed, NSF/ANSI 372, FM Approved
  • WARRANTY: 1 Year