Cryogenic valve seal

Details Cryogenic valve seal Cryogenic valve seal

F - Mech Eng,Light,Heat,Weapons

16

K

251/29

F16K 1/228 (2006.01) F16K 1/226 (2006.01)

Patent

CA 1138402

ABSTRACT OF THE DISCLOSURE A valve seal mechanism for cryogenic applications includes an undercut groove in a seating region of the fluid passageway in a valve body. Disposed within the groove is a shouldered resilient wear ring of polytetrafluoro- ethylene, the outer circumference of the shouldered portion of the wear ring having a V-shaped channel formed therein. A solid backing ring having an inner circumferential surface of wedge-shaped cross section makes an interference fit with the V-channel of the wear ring, thereby preloading the channel sides against the respective adjacent sides of the groove. A valve disc has a sealing surface which makes an interference fit with a seating surface forming the inner circumferential surface of the wear ring. Introduction of fluid under pressure and reduction of temperatures from normal ambient to cryogenic both tend to increase sealing effectiveness.

360125

Affiliated with

Also associated with

Rating

Cryogenic valve seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cryogenic valve seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryogenic valve seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-899724