Cryogenic valve

Details Cryogenic valve Cryogenic valve

1998-02-13

2000-02-01

Chambers, A. Michael

Fluid handling

Processes

Cleaning, repairing, or assembling

251368, F16K 5102

Patent

active

06019118&

ABSTRACT:
Cryogenic valve with at least one pair of sealing elements, preferably one with a seat and a tappet, whose seat surfaces are in sealing contact with one another in the shutoff position. At least one sealing element of the pair is formed of a linearly superelastic shape memory alloy, which is stabilized by plastic cold working in the martensitic textural state, i.e., no longer displays a shape memory effect.

REFERENCES:
patent: 4136854 (1979-01-01), Ehmig et al.
patent: 4546737 (1985-10-01), Kazuoka et al.
patent: 4741080 (1988-05-01), Larson et al.
patent: 5169460 (1992-12-01), Mae
patent: 5662745 (1997-09-01), Takayama et al.

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