Valve operator for butterfly valves or the like

Details Valve operator for butterfly valves or the like Valve operator for butterfly valves or the like

1976-04-12

1977-06-07

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

With pivoted valves

F16L 2702

Patent

active

RE0292532

ABSTRACT:
A valve operator for controlling the movement of a valve member carried by a rotatable valve shaft of a valve. The valve operator limits the movement of the valve member between a predetermined opened position and a closed position, the valve operator being adjustable without complete disassembly of the same to adjust the closing position of the member when necessary without affecting the overall amount of movement of the valve member as limit stops are operatively positioned on an operating shaft or stem of the valve operator with one of the stops being adjustable to axially move the operating shaft or stem and, thus, simultaneously adjust the other stop. Additionally, the valve operator is provided with coupling means for coupling the same to the rotatable shaft of the valve member, the coupling means being so arranged as to include a coupling sleeve which may be easily replaced by another coupling sleeve to accommodate the valve operator for valves having different diameter valve shafts. This latter feature also does not require the valve operator to be completely disassembled.

REFERENCES:
patent: 2908182 (1959-10-01), Bacchi
patent: 3043160 (1962-07-01), Killian
patent: 3147766 (1964-09-01), Herring et al.
patent: 3385120 (1968-05-01), Nott

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