Relief Valves

Relief Valves

Pressure relief valves from Technetics Group are designed to protect your pressure vessels, systems and components. Our engineers will tailor overpressure solutions to the specifications you require. As with each of our solutions, the relief valve solutions that we develop are custom-engineered for your critical applications.

We have produced relief and check valves for programs since Apollo and Gemini, and more recently, the Orion program. Products are suited for extreme conditions such as hard vacuum, high pressure, cryogenic and high temperatures. Hydrodyne provides full analytical, design and test support.



Pressures: 1 to 10,000 psi (.07 to 690 bar)

Temperature: -457°F to +400°F (-271°C to > +205°C)

Full Flow: Designs for Over 20,000 scfm N2, or mixed phase fluids

Leakage: <1.0x10-5 sccs Helium @ 80% of cracking pressure <1.0x10-3 sccs Helium @ 95% of cracking pressure

Size: <.25” to over 3.0” [76mm] inlet/outlets

Mass: Variable, based on usage

Mounting: Flange, weld to tube, custom

Shock: Pyrotechnic, Operational & Crash Safety (call for details)

Vibration: Launch, Abort, Ground, Runway, high to low frequency (call for details)

Media: Compatible With Jet & Rocket Fuels, Oxidizers, other Harsh Fluids

Materials: Aluminum, Stainless, Titanium, Inconels & Superalloys, PTFE

Qualification: Units have been tested and qualified to various RTCA DO-160, MIL requirements