(800) 66-BKFLO | (800) 662-5356


FEBCO LF850 QT DC - 1 1/2" - Double Check Valve Assembly - (683042) - <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->LF850-112


Lead Free: YES

1 1/2 In Lead Free Bronze Double Check Valve Assembly, Quarter Turn Shutoff, Small Diameter


This 1 1/2 inch lead free double check valve 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, top mounted test cocks, quarter turn ball valve shutoffs, two in-line independent positive seating check modules, captured springs, and replaceable check discs and seats.



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


Backflow Preventer Type Double Check Valve Assembly
Body Finish Cast Copper Silicon Alloy
Body Material Lead Free Bronze
Body Pattern Inline
Brand Name FEBCO
Buy American Act Compliant NO
Bypass No
Cap And Tether No
Disc Material Silicone
EAN 098268455588
Elbow Fitting No
Hazard Protection Level Non Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 1 1/2 IN
Inlet Connection Type Female Threaded
Inlet Shutoff Valve Type Quarter Turn Ball Valve
Inlet Thread Type NPT
Lead Free YES
Maximum Temperature-Fahrenheit 140
Maximum Working Pressure-BAR 12.10
Maximum Working Pressure-PSI 175
Minimum Temperature - Celsius 0.00
Minimum Temperature-Fahrenheit 32
Outlet Connection Size 1 1/2 IN
Outlet Shutoff Valve Type Quarter Turn Ball Valve
Outlet Thread Type NPT
Part Number 0683042
Polymer Coating No
Protection Type Backpressure and Backsiphonage
Seat Material Plastic
Series LF850 Small
Strainer No
Tradename None
Type Kit




FEBCO LF850 QT DC - 1 1/2" - Double Check Valve Assembly - (683042)

SKU: 683042