Valves and valve actuation – Fluid actuated or retarded – Fluid link or column actuator
Patent
1995-08-09
1998-08-25
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
Fluid link or column actuator
60415, 91 4R, F16K 31122, F15B 102, F15B 300
Patent
active
057975833
ABSTRACT:
A valve driving apparatus for actuating a shut-off valve provided in a pipeline conveying a fluid includes a gas/oil booster having an oil chamber and a gas chamber. A valve-driving actuator has a cylinder connected to the oil chamber of the booster, and a pressure tank connected to the gas chamber of the booster a compressed gas sealed therein. The compressed gas is used as a power source to cause oil pressure from the booster to drive the valve-driving actuator and consequently actuate the shut-off valve.
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Fukunaga Akio
Komiya Takashi
Murata Kiyoshi
Nakanishi Sadayuki
Sato Yoshiharu
Kitz Corporation
Walton George L.
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