1/2" 530C Poppet Style Relief Valve Zoom

1/2" 530C Poppet Style Relief Valve


Brand: Watts

Qty Price
/ each
$209.50 / box (10 units x $20.95)
In Stock! Ships in 24-48 Hours
(36 Available)

Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.


Size: 1/2"
Pressure Set Point: 50-175 psi
175 psi
50 psi
Material: Brass
Application: Heating
Max Pressure (PSI): 300 psi
Connection Type: Threaded

Description for Watts 0371271

Note: This item does not comply with the 2014 Lead Free Act. It may not be used in potable water applications as of January 4, 2014. For potable water applications 0556035 is recommended.

Series 530C Calibrated Pressure Relief Valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N O-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for by-pass thermal expansion pressure relief (not ASME approved). Model 530FP is for use in fire protection systems.

  • Maximum Pressure: 300psi (20.67 bar).
  • Adjustable Pressure Ranges: Sizes 1/2, 3/4" - 50 to 175psi (3.45 to 12.06 bar)
  • Size 3/4" - 100 to 300psi (6.89 to 20.67 bar)
  • Size Range: 1/2 to 3/4" (15 to 20mm)

1/2" 530C Poppet Style Relief Valve

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