Drive for a feed valve

Details Drive for a feed valve Drive for a feed valve

1990-12-13

1992-09-01

Michalsky, Gerald A.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

73168, 251 29, 251 3001, F15B 1900, F16K 3700

Patent

active

051431190

ABSTRACT:
A drive for a feed valve having an actuating line and a device for controlling the pressure in the actuating line. The device comprises three valves connected to one another to form a hydraulic auctioneering circuit. The drive is suitable for a comparatively high oil pressure, and the drive is provided with a test system which monitors the operativeness of the drive. The test system is pressurized by the device, and a pressure drop can be sensed in the test system by a sensor.

REFERENCES:
patent: 3429180 (1969-02-01), Vind
patent: 4001654 (1977-01-01), Davis et al.
patent: 4637587 (1987-01-01), Kuhnlein

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