Sub-sea pilot-operated valve

Details Sub-sea pilot-operated valve Sub-sea pilot-operated valve

1984-12-28

1986-07-22

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762525, F15B 13042

Patent

active

046013113

ABSTRACT:
A pilot-operated, directional control valve having a ported slide and cooperating, non-interflow, shear-type seals. The valve achieves a high flow capacity for a given size by utilizing both of a pair of opposed sleeve seals to conduct flow through the valve. The valve response is improved by a hydraulic bias of supply pressure on the slide which requires operation at a high pilot pressure.

REFERENCES:
patent: 2394487 (1946-02-01), Rotter et al.
patent: 2699417 (1954-02-01), Ray
patent: 2732860 (1956-01-01), Ray
patent: 3215163 (1965-11-01), Henderson
patent: 3324888 (1967-06-01), Henderson
patent: 3457957 (1969-07-01), Mueller
patent: 3776276 (1973-12-01), Stiltner
patent: 4187884 (1980-02-01), Loveless
patent: 4220074 (1980-09-01), Reip
patent: 4340203 (1982-07-01), Donner
patent: 4513783 (1985-04-01), Inoue

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