Sanitary Pressure Relief Valve (Safety Valve)

Design

The sanitary pressure Relief valve is a hygienic manually adjustable valve used in the food, beverage and processing industry applications where pressure surges must be discharged in order to avoid damage to plant and operators.

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The hygienic tri clamp pressure relief valve contains a disc supported by springs in an actuator, when enough pressure is applied, the disc opens to allow excess air or fluid to flow through.

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A stainless steel pressure relief valve is available in SS 304 and SS 316L. Seal materials are normally available in Teflon, EPDM, Viton and Silicone. Dairy pressure relief valves usually come in weld and ferrule ends, but other less commonly used sanitary union can be requested.

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Method of Operation

When a sanitary safety valve is used, if the pump discharge pressure exceeds the set cracking pressure, the valve will open to a relief path, releasing excess pressure through the side port, the valve will remain open until the line pressure decreases below the set pressure. The spring in the stainless steel relief valve actuator is manually adjustable and users set the desired relief cracking pressure right at the valve by simply turning the adjustment screw.

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The drawback to the manual stainless steel safety valve is the fine tuning that must occur to set the relief valve. Springs are not calibrated, so to set the relief pressure, one must tighten the spring all the way down and then carefully dial in the cracking pressure by adjusting the screw.

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Size Availability- 1" to 2.5" 

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Material Availability- Body in SS 304 and SS 316L

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Connection Availability- Weld end and Ferrule End