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Watts Valves Relief Valve
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Watts 1/2 In Lead Free Diaphragm Operated Bypass Control Relief Valve, Adjustable 10-50 psi

SKU: 0121399

$737.50

MSRP

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Product Details

Watts 0121399

This 1/2'' bypass control relief valve is used in commercial, residential and industrial applications to regulate liquid pressure as supplied by a positive pressure pump. It is a diaphragm-operated type valve that protects equipment by opening at an adjustable range of 10 to 50 psi (0.1 to 3.4 bar) to allow excess volume to be by-passed back to the source. It consists of a lead free alloy body with NPT threaded male inlet and NPT threaded female outlet, sensitive rubber diaphragm, Buna-N disc, tee handle, a spring, and adjustment handle separated from liquid elements.


  • UPC 098268584011
  • Online Product ID 9688719
  • Material Copper Silicon
  • Buy American Act Compliant yes
  • Bypass yes
  • Inlet Connection Size 0.5''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Lead Free yes
  • Maximum Temperature Deg F 180
  • Maximum Working Pressure Psi 50
  • Outlet Connection Size 0.5''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 10 to 50
  • Pressure Relief Setting Psi 25
  • Protection Type Pressure
  • Series LFBP30

Additional information

  • Sensitive rubber diaphragm
  • Lead free body construction
  • Adjustable opening pressure range at 45 to 100 psi
  • T-handle facilitates pressure change

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