Stem sealing for high pressure valve or the like

Details Stem sealing for high pressure valve or the like Stem sealing for high pressure valve or the like

1977-09-15

1978-06-27

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

277 72FM, F16k 3144

Patent

active

RE0296791

ABSTRACT:
high-pressure region and a low-pressure region so that the seal life is long, and so that stem torque as a result of the sealing is kept to a minimum. A plurality of sealing elements are provided and arranged so that the differential pressure across any one sealing element is only a fraction of the pressure differential between the high-pressure and the low-pressure regions. Flowable plastic or the like under selected pressures is injected and maintained between adjacent sealing elements.

REFERENCES:
patent: 3049082 (1962-08-01), Barry
patent: 3135285 (1964-06-01), Volpin
patent: 3288473 (1966-11-01), Hinds
patent: 3307826 (1967-03-01), Lowrey
patent: 3325173 (1967-06-01), Alt
patent: 3544064 (1970-12-01), Carlin
patent: 3572735 (1971-03-01), Dryer
patent: 3578341 (1971-05-01), LeFebrve
patent: 3599991 (1971-08-01), Combes et al.
patent: 3883112 (1975-05-01), Milleville et al.
Drilling-DCW Magazine-Aug. 1973-p. 50673.

Affiliated with

Also associated with

Rating

Stem sealing for high pressure valve or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stem sealing for high pressure valve or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stem sealing for high pressure valve or the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2297813