Overpressure valves
Pressure relief valves protect the air system from excessive pressure. They release excess air automatically when safe pressure limits are exceeded.
A pressure relief valve is a safety-critical component in compressed air systems. If the pressure rises above a set threshold, the valve opens automatically and vents the excess air, preventing damage to air lines, valves, reservoirs, and other system components.
These valves are especially important in sections of the system where pressure can rapidly increase, such as after the compressor or in case of regulator failure. They act as a final safety mechanism to keep the entire system operating within safe limits.
Despite their relatively simple design, pressure relief valves must be precise and highly reliable. Contamination, corrosion, or worn-out seals can interfere with proper function, making routine inspections and replacements vital to overall system safety.
Key features and uses:
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Prevents overpressure in air brake and pneumatic systems
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Automatically vents air when pressure exceeds a defined limit
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Recommended in compressor circuits and regulated systems
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Simple design with critical safety performance
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Available in various pressure ratings and connection types
At Sanders Parts, we supply pressure relief valves that meet OEM safety and performance standards — built to maintain system protection under all conditions.