Fabricated gate valve structure

Details Fabricated gate valve structure Fabricated gate valve structure

1977-04-08

1978-09-05

Cline, William R.

Valves and valve actuation

Reciprocating valve

Gate

251329, 251367, F16K 302

Patent

active

041113969

ABSTRACT:
A gate valve structure having a hollow body with inlet and outlet conduits mounted thereon and opposed seat support members mounted on inner ends of the conduits. The opposed seat support members have seat pockets which are finish machined before insertion into the hollow body. The opposed seat support members are in a predetermined spaced relation to each other and they are welded in such spaced relation to the hollow body from a position within the hollow body. One arrangement includes inlet and outlet conduit sections welded to the hollow body and opposed inner conduit sections having the opposed seat support members thereon with the inner conduit sections welded to the inlet and outlet conduit sections from a position inside the conduits to form a continuation of the outer conduit sections. Another arrangement includes inlet and outlet conduits having seat support members welded and finish machined prior to assembly. These conduits are positioned inside the hollow body with the seat support members in a spaced relation and welded inside the hollow body. Annular grooves in the seat support members adjacent the seat pockets aid in stress relieving. A gate is movably mounted between the seat support members.
A method of making a gate valve body includes fabricating and stress relieving a seat support assembly, then machining it to finished dimensions, then inserting the seat support assembly into a hollow body member. Next, the seat support assembly is welded inside the hollow body member. Local stress relieving of final welds in the body can be employed.

REFERENCES:
patent: 773642 (1904-11-01), Hayden et al.
patent: 1874405 (1932-08-01), Wood
patent: 2201895 (1940-05-01), Glen
patent: 3197175 (1965-07-01), Siepmann
patent: 3207471 (1965-09-01), Williams
patent: 3273853 (1966-09-01), Pool et al.
patent: 3314442 (1967-04-01), Volpin
patent: 3442286 (1969-05-01), Anderson et al.
patent: 3580541 (1971-05-01), Bouhot
patent: 3591134 (1971-07-01), Fujiwara
patent: 4017058 (1977-04-01), Morrison

Affiliated with

Also associated with

Rating

Fabricated gate valve structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fabricated gate valve structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fabricated gate valve structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2090974