End entry ball valve with seal wear compensation and force isola

Details End entry ball valve with seal wear compensation and force isola End entry ball valve with seal wear compensation and force isola

1976-08-19

1978-07-11

Cohan, Alan

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251172, 251315, F16K 506

Patent

active

040997057

ABSTRACT:
In an end entry ball valve assembly, a bifurcated seal carrier comprised of an annular seal support member and back-up member, is received in at least one end opening. The seal support member includes an axially facing end wall and a radially facing guide wall. The back-up member is slidably received in the opening and presents a recess defined by an axially facing support wall and a radially facing guide wall respectively adjacent the end wall and guide wall of the seal support member. An annular, resilient biasing and sealing ring is disposed, in a radially tensioned and axially compressed condition, in a groove disposed in at least one of those axially facing walls at a location radially inwardly of the guide walls. The ring biases the seal support member and a seal carried thereby toward the valve ball and seals against fluid flow between the axially facing walls. The seal support member is dimensioned for limited radial centering movement in the receiving recess without direct compressive resistance by the biasing and sealing ring. Longitudinal loads on the back-up member are isolated from the valve ball.

REFERENCES:
patent: 3214135 (1965-10-01), Hartmann
patent: 3266769 (1966-08-01), Shand
patent: 3323542 (1967-06-01), Magos
patent: 3508736 (1970-04-01), Rhodes
patent: 3550902 (1970-12-01), Pidgeon

Affiliated with

Also associated with

Rating

End entry ball valve with seal wear compensation and force isola does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with End entry ball valve with seal wear compensation and force isola, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and End entry ball valve with seal wear compensation and force isola will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-257629