WATTS Pressure Relief Valve Calibrated 530C

Pressure Relief Valve (PRV) Sizes: 1⁄2″ or 3⁄4″ (15 or 20mm)

Series 530C Calibrated Pressure Relief Valves are spring operated brass valves designed for use only as protection from the build-up of excessive pressure in systems containing water, oil or air. Series 530C valves incorporate a calibrated adjustment feature for setting the valve to the relief pressure required. These valves are ideally suited for bypass thermal expansion relief.

Features
• Calibrated adjustment feature for setting valve to relief
pressure required
• Adjustable range 50 – 175psi (3.4 – 12.1 bar)
• All brass construction
• All stainless steel spring
• Buna-N disc on machined body seat
• Inlet (bottom), male NPT threaded
• Outlet (side), female NPT threaded

Pressure – Temperature
Maximum Temperature: 180°F (82°C)

Spring Ranges
1⁄2″ or 3⁄4″ (15 or 20mm): 50 – 175psi (3.4 – 12.1 bar)
3⁄4″ (20mm): 100 – 300psi (6.9 – 20.7 bar)
Application Note: The Watts Series 530C are not ASME approved safety relief valves and should not be used in system application with this requirement.