Watts 0372271 530C 3/4 Poppet Style Adjustable Relief Valve By

The maximum pressure is 300 psi (20.67 bar). 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. All-brass construction features an NPT threaded male inlet and NPT threaded female (drain) outlet connections; a stainless-steel spring; a brass bonnet; a Buna-N disc and a Buna-N O-ring Watts 0372271 530C 3/4 Poppet Style Adjustable Relief Valve By 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). 0372271 - Watts 0372271 - 3/4" 530C Poppet Style Relief Valve Guards against excessive pressure in water, oil or air systems used in commercial, residential or industrial applications, including fire protection systems Calibrated Pressure 0371271 - Watts 0371271 - 1/2 530C Poppet Style Relief Valve 617805 ChooseWatts 530C ½Calibrated Pressure Relief Valve when your project calls for bypass thermal expansion relief. Spring operated; resets after quietly releasing pressure It is for use in fire protection systems.