Valves and valve actuation – Reciprocating valve – Gate
Patent
1978-10-30
1981-04-28
Rosenthal, Arnold
Valves and valve actuation
Reciprocating valve
Gate
2771168, 277190, 285340, 285DIG18, F16K 302
Patent
active
042640547
ABSTRACT:
A valve has a metal-to-metal seal system between the flow bores of the valve body housing and each of the valve seat hubs. Each seal system includes an elastic dished metal ring gasket and a retainer ring. Each metal gasket is softer than each of the seat hub and the valve housing, is of rectangular cross-section, and the edge at the inner periphery on the convex side is flattened. Each seal system is disposed on an annular groove cut in the outer periphery surface of the end of the seat hub. One side of the metal ring gasket is located adjacent to the shoulder of the seat hub formed by the groove cut into the outer periphery end of the seat hub. The retainer ring is reciprocably mounted on the seat hub groove adjacent to the other side of the metal ring gasket and extends beyond the end of the seat hub prior to activation of the seal system. Each seal system is activated by insertion of the seat hub on which it is mounted into the corresponding bore of the valve housing until the end of the seat hub contacts a stop shoulder in the bore. The stop shoulder of the valve bore causes the retainer ring to advance towards the seat hub shoulder far enough to flatten out the dished metal ring gasket sufficiently for the inner and outer peripheries of the ring gasket to engage the wall of the groove of the seat hub and the wall of the bore respectively with enough pressure to cause plastic deformation of the inner peripheral edge on the concave side and the outer peripheral edge on the convex side of the gasket. The retainer ring also prevents substantial movement of the seal relative to the seat hub and housing when the valve is in use despite variations in the temperature of the valve and the pressure of the fluid therein and thereabout.
REFERENCES:
patent: 1825962 (1931-10-01), Laird
patent: 2417181 (1947-03-01), Sandilands
patent: 2433638 (1947-12-01), Volpin
patent: 2796230 (1957-06-01), Grove et al.
patent: 2992840 (1961-07-01), Reynolds et al.
patent: 2995388 (1961-08-01), Morello, Jr. et al.
patent: 3006599 (1961-10-01), Eckert, Jr.
patent: 3026084 (1962-03-01), Bryant
patent: 3135285 (1964-06-01), Volpin
patent: 3365219 (1968-01-01), Nicolaus
patent: 3463518 (1969-08-01), Broussard et al.
patent: 3538938 (1970-11-01), Volpin
patent: 3690682 (1972-09-01), Ferrill
patent: 3696831 (1972-10-01), Fowler
patent: 4029294 (1977-06-01), McCaskill et al.
Hamby, T. W. and Tuttle, R. N., "Deep, High Pressure Sour Gas Wells-An Industry Challenge," 1975 Annual Meeting, Div. of Production, American Petroleum Institute, Dallas, Texas, Apr. 1975.
Hamby, T. W., Broussard, L. P., and Taylor, D. B., "Producing Mississippi's Deep High Pressure Sour Gas," Paper No. SPE5604, Soc. of Petroleum Engineers of American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc., 1975.
Conley Ned. L
McEvoy Oilfield Equipment Company
Ostfeld David M.
Rose David Alan
Rosenthal Arnold
LandOfFree
Metal-to-metal seat hub seals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal-to-metal seat hub seals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal-to-metal seat hub seals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-859533