Raypak 017957F Pressure Relief Valve Kit 75 PSI

The Raypak 017957F Pressure Relief Valve Kit is a protection part that releases excess system pressure when it reaches the calibrated setting of 75 PSI. It operates through a spring-loaded mechanism that automatically opens the discharge pathway once pressure exceeds the specified threshold and reseals after conditions return to the acceptable range. It acts as a safeguard against overpressure conditions that could affect internal piping and heat exchangers and connected components in HVAC systems. The accurate pressure discharge capability promotes safe operation and preserves system integrity during varying thermal and hydraulic loads.