Gate valve and method of manufacture

Details Gate valve and method of manufacture Gate valve and method of manufacture

1975-05-15

1976-05-18

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

251366, F16K 2704, F16K 2710

Patent

active

039572463

ABSTRACT:
A gate valve having a body made in two parts, namely a main part having flow passages and at least one body extension that accommodates movement of the gate between open and closed positions. The extension is generally rectangular as viewed from one end of the valve, and has outwardly bulged end walls as viewed from one side of the valve. The end walls are concave as viewed from the inside of the body. Also a method of manufacturing such a valve involving fabrication of a box-like structure with welding applied in particular manner, after which hydraulic pressure is applied internally to pressure form the end walls of the structure to the desired configuration.

REFERENCES:
patent: 3386151 (1968-06-01), Combes
patent: 3415489 (1968-12-01), Gray
patent: 3460224 (1969-08-01), Combes et al.
patent: 3638908 (1972-02-01), Grove

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