Proportional Relief Valve – Schwer PRV

by Schwer Fittings GmbH

  • Stainless steel Proportional Relief Valve
  • Proportional relieve valve for pressure limitation in closed systems.
  • The spring sets (PSS1…) have to be ordered separately and can be selected between 50 and 6000 psi (3,5 to 413 bar),
  • NPT or U2 connection options.
  • The valve can be ordered with preset opening pressure on request.
  • European manufactured and distribution center.
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Proportional Relief Valve – Schwer PRV

  • Common standard body design with ability to use one of 8 spring sets for different pressure ranges.
  • The valve opens when the set pressure is exceeded, but regulation proportional to the pressure increase, no sudden opening.
  • Pressure release until the nominal pressure is again below the setting pressure.
  • Nominal pressure is less than the setting pressure, Force of the spring is sufficient to close the system again.

Key features

  • Stainless steel valves
  • Less stress on the system, as there is no sudden relief, PRV is designed for repeat openings and release of pressure
  • Pressure ranges between 3.5 to 413 bar
  • NPT or U2 connections available
  • The valve can be ordered with preset opening pressure on request.

Valve design

Proportional relief valve Design Proportional relief valve Design 2

Application areas

  • Within Electrolyser applications.
  • Within hydrogen Fuel Filling stations.
  • Within Fuel cell applications

Contact us

  • Schwer Fittings is your specialist supplier of stainless steel pipe connection technology. Interested? Contact us by filling in the contact request form.
Max Pressure (in bar)

Min Pressure (in bar)

Manufacturing Readiness (MRL)

Technology Readiness (TRL)

Technical Datasheet

Proportional relief valve Technical datasheet

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      Schwer Fittings GmbH

      Schwer Fittings is your specialist supplier of stainless-steel pipe connection technology. Schwer branded production includes couplings, compression fittings, valves, pipes, hoses and hose end fittings. The high-quality products are used in gas and fluid applications. Schwer Fittings has 16 worldwide subsidiaries and approximately 360 employees. All items pass through a state-of-the-art quality control center, where they are carefully checked against technical drawings. Production takes place in four european locations, each specializing in a particular product range.

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