Pilot solenoid control valve with integral pressure sensing tran

Details Pilot solenoid control valve with integral pressure sensing tran Pilot solenoid control valve with integral pressure sensing tran

1999-04-01

2000-06-13

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91446, 91454, 251 3004, F15B 13043, F16K 31124

Patent

active

060736526

ABSTRACT:
A pilot operated control valve has a main poppet which selectively engages a valve seat to control flow of fluid between an inlet and an outlet. The flow of fluid through a pilot passage in the main poppet is controlled by a pilot poppet that has a pressure balancing stem extending into the pilot passage. The control valve incorporates a compression check valve and/or a reverse flow check valve, in addition to a transducer for sensing the pressure at the outlet.

REFERENCES:
patent: 3954046 (1976-05-01), Stillhard
patent: 4679765 (1987-07-01), Kramer et al.
patent: 5878647 (1999-03-01), Wilke et al.

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