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

Figure: ELLIPS with manual actuator

Bevel Seat Cryo Valve with s.s. bellow
Pneumatic or manual actuator

The specially shaped seat allows the free fluid stream in open position. Therefore the ELLIPS valves are very interesting when low flow resistance is required.
The bevel seat valve ELLIPS is available from size 8 mm to 100 mm with an operating pressure of 25 bar and a temperature range to -253°C.
The ELLIPS valve is characterised by a very good DN/cv-value ratio. The ELLIPS valve therefore allows to apply smaller sizes than usual.

Technical data Technical Design
Service fluids N2, O2, Ar, H2, He, N2O, CO2, natural gas**
Operating temp. fluid -196°C (-253°C) to +50°C
Operating temp. environment -30°C to +50°C
Body material Stainless steel
Body type Bevel seat (with free flow)
Seat sealing Metal/PCTFE, He-leak rate seat 1 x 10-6 mbar l/s
Metal/PTFE, He-leak rate seat 1 x 10-6 mbar l/s
Metal/Metal, He-leak rate seat 1 x 10-3 mbar l/s
Body sealing Metal sealring,
He-leak rate to outside 1 x 10-8 mbar l/s
Stem sealing s. s. bellow, physically tight
Surface of components Machined, grinded, electropolished or passivated
Installation position Actuator on top, ca. 10° from vertical,
horizontal or vertical flow
Material certificates DIN EN 10204/3.1B AD2000-A4
**all dangerous, toxic or corrosive fluids with an
appropriate material selection

ELLIPS technical Data (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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