Apparatus for adjustment of rotary valve actuators

Details Apparatus for adjustment of rotary valve actuators Apparatus for adjustment of rotary valve actuators

1990-01-16

1990-09-04

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

251 58, 251292, 403337, F16K 4300, F16K 3116

Patent

active

049535862

ABSTRACT:
Apparatus for adjusting the fully open and fully closed positions of a system having a valve and a rotary valve actuator for controlling the opening and closing of the valve. A sub base is provided which serves as an adaptor and is fixedly mounted to the valve bonnet of a standard quarter turn valve. The sub base has threaded fasteners which fit through open or raised portions of a convoluted ring fixed to the actuator housing. A cover plate above the ring has holes to receive the studs and nuts or other suitable means are used to fasten the cover plate, convoluted ring, and sub base. The raised portions of the convoluted ring have pusher screws which push against the threaded fasteners of the base flange. Rotation of the convoluted ring and the actuator relative to the sub base can occur by selectively rotating the pusher screws thereby resulting in fine adjustment of the fully open and fully closed positions of the valve.

REFERENCES:
patent: 2284070 (1942-05-01), Roof
patent: 3152785 (1964-10-01), Zeitlin
patent: 4313367 (1982-02-01), Weyer
patent: 4705063 (1987-11-01), Robinson
patent: 4836497 (1989-06-01), Beeson
patent: 4869458 (1989-09-01), Susini et al.

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