valves and components for gas industry
cryogenic and high-pressure engineering
aerospace, marine and energy industry

Magos the innovative springless Cryogenic Non-Return-Valve

Figure: MAGROS

The innovative springless Cryogenic Non-Return-Valve

MAGROS is the reliable and high-quality springless non-return-valve, made from stainless steel, for gases and liquids at common temperatures, and with low pressure drop in open position.
The MAGROS non return valve for cryogenic mediums is safe and absolutely reliable also by low minimum opening pressures.
The valve body is made from solid stainless steel. Butt welded ends are the standard end connections.
Modifications and special solutions, for example for outdoor operation, different end connections and many other parameters are possible.

Technical Data

Technical Design
Service fluid N2, O2, Ar, H2, He, N2O, CO2, natural gas
Operation temperature: service fluid -196°C (-269°C) bis + 50°C
Operation temperature: environment -40° C to +50° C
Body shape straight pattern
Seat sealing metal/soft seal
Sealing to atmosphere metal-C-ring,
He-leakage rate to outside 1 x 10-8 mbar l/s
Surface of medium touched parts turned, grinded, electrolytically polished or passivated
Minimum opening pressure ≤ 0,03 bar
Installation position horizontal
Body material stainless steel
Certification DIN EN 10204/3.1 B AD2000-A4

Brochure: Magros / PDF


STÖHR ARMATUREN was rewarded with the seal of quality for "Innovation by Research" by the Stifterverband für die Deutsche Wissenschaft (Founding Association for German Sciences) and is a permanent corporate member of following cryogenic associations: Deutscher Kälte- und Klimatechnischer Verein | Cryogenic Society America, Inc. | British Crygenics Council |

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