Ultrahigh purity gas valve with encapsulated bellows

Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-785802

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.