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PRV 系列比例安全卸荷阀

Swagelok® Proportional Safety-Relief Valves (PRV Series)

Proportional safety relief valves provide over-pressure protection with PED certification.

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PRV series relief valves are proportional safety relief valves that are certified to PED 2014/68/EU Category IV, and CE-marked in accordance with the Pressure Equipment Directive as a safety valve according to ISO-4126-1 for applications with these safety requirements. Five set spring pressure ranges are available with the selected set pressure factory-set, tested, locked, and tagged to ensure the desired setting. Optional end connection adapters provide additional flexibility for installation in a variety of system setups.


Working Pressures up to 6000 psig (413 bar)
Set Pressure 145 to 6000 psig (10.0 to 413 bar)
Seal Materials Fluorocarbon FKM and nitrile

PRV Series Proportional Safety-Relief Valves Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

世伟洛克阀门流量系数 (C<sub>v</sub>) 计算器

The Right Valve Can Make All the Difference

Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.

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Swagelok Resources Curated for You

How to Select the Right Valves for Your Industrial Fluid System

Learn how to apply the practical STAMPED method to select the valves most suited to your industrial fluid or sampling system design applications.

How to Isolate Industrial Fluid Systems with Block Valves

The isolation of industrial fluid system lines prior to maintenance is vital to plant safety. One of the safest ways to isolate a fluid system line is to install two block valves. Learn how to design proper configurations for your system.

Process Measurement – Impulse Line Best Practices

It can be difficult to identify issues within your process instrumentation application if you focus solely on the transmitter. Learn how to solve problems within your process instrumentation line with tips and best practices from Swagelok.

Closing the Manufacturing Skills Gap with a Well-Trained Team

With an aging industrial workforce nearing retirement, manufacturers are turning to younger generations to replace expert knowledge. Learn how to build an effective fluid system training program.

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