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Watts LFBP30 (0121400) Lead-Free Diaphragm Operated Bypass Relief Valve - 1/2in.

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1.13 lbs
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These lead-free bypass relief valves regulate liquid pressure as supplied by a positive pressure pump. They protect equipment by opening at desired setting and allowing excess volume to be bypassed back to source. This model has 1/2" inlet and outlet ports.


Technical Specifications

Inlet Port: 1/2 inch
Max Temperature: 180 degrees F
Outlet Port: 1/2 inch
Min PSI: 45
Max PSI: 100

Product Description

Lead-Free Bypass Relief Valve

Series LFBP30 control relief valves feature lead free, cast copper silicon alloy body construction, sensitive rubber diaphragms, and Buna-N discs. The tee handle facilitates pressure change. The spring and adjustment handles are free from contact with liquid elements being controlled. Opens at an adjustable range of 45 to 100 PSI.

Dimensions: 1 1/8" x 5 3/4"


  • Maximum Temp: 180°F (82°C)
  • Buna-N diaphragm and disc
  • Made of cast copper silicon alloy 
  • Pressure Range: 45-100 PSI
  • Inlet: 1/2" MNPT
  • Outlet: 1/2" FNPT

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