Model A – Relief

Model A Relief

The Model A Relief valve senses line pressure and holds a bubble-tight, closed position until pressure reaches an exact set point. At set point, the safety pressure relief valve instantly opens to relieve pressure from a protected system and vents to the atmosphere.

Model A – Relief

Set Pressure: 5-500 Psi
Accuracy: + / – 5%
Connections: Standard 1″ NPT and custom connections available.
Seals: Available for high & low temperatures, viton standard.
Standard Materials: Body mild steel with stainless steel trim, other materials optional.

Product Feature

The Model A relief valve’s pin is located inside the valve but external to the flow of media. It is the heart of the operation, acting as the sensor and actuator. Once buckled, one person in under a minute can reset the pin in place without breaking the line.


The Model A Relief valve provides safety for a variety of pressure relief applications including but not limited to: Oil and Gas Production, Pipeline, Well Drilling, Chemical Processing, Food Processing, Waste Water Processing, Pharmaceutical Processing, Pulp and Paper Plants, and anywhere that conventional relief valves and rupture discs are used.

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