Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1989-04-14
1990-03-20
Rosenthal, Arnold
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
2513353, 251273, F16K 3144, F16K 4100
Patent
active
049092715
ABSTRACT:
In an ultrahigh purity sealed gas valve of the Y-type having a bellows located in a stem bore, a second seat is provided so that the seat seal engages the second seat to seal off the space within the bonnet tube and the bellows from communicating with the gas flow path, thereby preventing contaminating particles from the bellows from entering the gas system and also decreasing the dead space presented to the closed gas system by the valve. A purge port is located between the open and closed positions of the seat seal thereby permitting purging gas to bathe the sealing members and the bellows in both positions.
REFERENCES:
patent: 2743738 (1956-05-01), Johnson
patent: 4166607 (1979-09-01), Webb
patent: 4421298 (1983-12-01), Kujawski
Canaan Mark A.
Hendry Ronald G.
Nichols Joseph H.
Obermeyer Charles M.
Cryolab, Inc.
McKown Daniel C.
Rosenthal Arnold
LandOfFree
Ultrahigh purity gas valve with encapsulated bellows does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrahigh purity gas valve with encapsulated bellows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrahigh purity gas valve with encapsulated bellows will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-785802