This 1/2 IN calibrated pressure relief valve is 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 bypass thermal expansion pressure relief (not ASME approved). It is for use in fire protection systems. The maximum pressure is 300 PSI (20.67 BAR). The adjustable pressure range is 50 to 175 PSI (3.45 to 12.06 BAR).

Calibrated Pressure Relief Valve, Series/Model: Series 530C, Nominal Size: 1/2 IN, Connection Type: MNPT X FNPT (Drain), Pressure Rating: 50 - 175 PSI, Temperature Rating: 180 DEG F, Brass Body Material, Trim Material: Buna-N Disc, Seal Material: Buna-N O-Ring, Industry Standards: ISO 9001-2008 Certified, 1-5/8 IN Width, 3 IN Height, Lead Free: No

• Designed for protection against excessive pressure build up
• Bronze body construction
• Calibrated pressure relief valve

• Warranty Information https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Watts_0009108_Warranty_Information.pdf
• Instruction/Installation Manual https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Watts_0371271_Instruction_Installation_Manual.pdf
• Specification Sheet https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Watts_0371271_Specification_Sheet.pdf