Flowline

Relief Valves Emergency Back Pressure



Technical data:



Note:
Approximate flow rate for relief valves:
• 2” Spring - 150 GPM Max.
• 3” Spring - 430 GPM Max.

As flow requirements increase, then multiple valves may be preferred, and are permissible. You may find that two of the 2” valves are a better economic combination than one 3” valve. Multiples of either valve are allowed as long as the valves are all set within 10% of each other.

Example:
If a customer requires a flow of 400 GPM, he may choose to use three 2” spring operated valves or one 3” spring operated valve.

Description:



SPM®’s Emergency Back Pressure Relief Valve provides over-pressure protection for reciprocating pumps, treating lines, pressure vessels, and other equipment operating under high-pressure, high-flow conditions. Compact and simple to operate, the valve is direct acting, relying on the system’s hydraulic pressure to overcome a preset nitrogen gas force to relieve. It is externally adjustable from zero pressure to maximum setting.

Unlike Shear Relief Valves, which use common nails to trigger the release, the SPM® valve will reseat once the system pressure reduces. And unlike many “High-Lift”Valves, which require a substantial drop in pressure before they will reseat, the SPM® valve exhibits little blow down and will reseat at or near the “cracking pressure”.

  • relief-valves-emergency


reliefvalvesemergencybackpressure-0-14


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4050 SOLA, Norway

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