Method for manufacturing gate valves

Details Method for manufacturing gate valves Method for manufacturing gate valves

1988-12-12

1990-11-27

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Fluidic or fluid actuated device making

29463, 251327, B21D 5118

Patent

active

049725777

ABSTRACT:
A method is provided of making a gate valve assembly. First, two dish-like stamped metal valve bodies are mated while capturing an actuating nut between the noted halves. Next, the halves are welded together. The metal valve body is cooled and heat-sensitive resilient discs are mechanically sandwiched against opposite sides of the valve body to leave circumferential margins of the discs exposed for sealing purposes. The valve body is then inverted and confined within a closed environment default 6, stamped metal housing components which, when welded together, form a completed gate valve assembly, while supporting, locating and guiding the valve body assembly within the closed environment with minimal contact with the stamped metal housing components.

REFERENCES:
patent: 3111137 (1963-11-01), Carlin
patent: 3151838 (1964-10-01), Tripoli et al.
patent: 4257477 (1981-03-01), Clarkson
patent: 4349948 (1982-09-01), Muller et al.
patent: 4483514 (1984-11-01), Kennedy
patent: 4541613 (1985-09-01), Barbe
patent: 4688597 (1987-08-01), Clarkson et al.
patent: 4765361 (1988-08-01), Clifford

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