High pressure water jet cutting nozzle on-off valve

Details High pressure water jet cutting nozzle on-off valve High pressure water jet cutting nozzle on-off valve

1988-08-01

1990-11-27

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

239583, F16K 31143

Patent

active

049730266

ABSTRACT:
An 2-way on/off high pressure water jet cutting valve is provided with a valve stem designed to close under the influence of high pressure inlet water, an a hydraulic piston designed to open the valve stem against the force exerted by high pressure inlet water. The valve stem extends through the hydraulic piston. The valve stem and the hydraulic piston are contained within the valve housing. Externally applied forces are not required to operate the valve or to insure that the valve operates properly under the influence of the various fluid pressures that are applied to it.

REFERENCES:
patent: 2457993 (1949-01-01), Fletcher et al.
patent: 3270500 (1966-09-01), Williams
patent: 3394890 (1968-07-01), Heinrich et al.

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