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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 45-100 psi

SKU: 0121400

$737.50

MSRP

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Product Details

Watts 0121400

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 45 to 100 psi (3.1 to 6.9 bar) to allow excess volume to be bypassed 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 098268584028
  • Online Product ID 9688720
  • Material Copper Silicon
  • Buy American Act Compliant yes
  • Bypass yes
  • Entry Style Single Top
  • Inlet Connection Size 0.5''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Lead Free yes
  • Maximum Temperature Deg F 180
  • Outlet Connection Size 0.5''
  • Outlet Connection Thread Type FPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 45 to 100
  • Protection Type Pressure
  • Series LFBP30

Additional information

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

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