Alleviating sticking of normally closed valves in nuclear reacto

Details Alleviating sticking of normally closed valves in nuclear reacto Alleviating sticking of normally closed valves in nuclear reacto

1996-12-03

2000-08-08

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

251 611, 251368, 2989013, F16K 3112, F16K 714

Patent

active

060986557

ABSTRACT:
Normally closed valves that operate in the environment of nuclear power plants are provided with surface-modified valve seat components to alleviate sticking of the valves. The surface modification is achieved by ion implantation of a coating of, for example, platinum, palladium, platinum/palladium or palladium/gold on at least one valve seat component.

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