Method of manufacture of a ball valve

Details Method of manufacture of a ball valve Method of manufacture of a ball valve

1979-02-22

1980-11-25

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

228214, B23P 1500, B23K 3100

Patent

active

042350034

ABSTRACT:
A hollow valve body having two hubs for connection to a piping system and containing a spherical plug or ball is constituted by two shells cut from pipe sections. Each shell is shaped so as to form a flared-out portion in a spherical zone, the edge of which is provided with a semicircular notch. A sleeve having a recess at the inner end so as to form a valve seat is welded in position within one of the hub connections. The ball is enclosed between the two shells which are joined together by welding. A second sleeve also provided at the inner end with a valve seat is welded in position within the other hub connection. A stuffing-box is engaged on the ball-operating rod and welded to the orifice formed by the two oppositely-facing semicircular notches.

REFERENCES:
patent: 3157190 (1964-11-01), Allen
patent: 3241808 (1966-03-01), Allen
patent: 3460802 (1969-08-01), Colby et al.
patent: 3919756 (1975-11-01), Kajrup

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