Metering valve assembly

Details Metering valve assembly Metering valve assembly

1990-04-27

1992-03-10

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Fluid and non-fluid actuators

251 60, 25112911, 25112905, F16K 31122, F16K 152

Patent

active

050944266

ABSTRACT:
Metering valve assembly having a poppet movable relative to a valve seat for controlling communication through an orifice. The poppet is urged toward the valve seat with a closing force, and the poppet can be adjusted gradually to provide a fine adjustment of the communication through the orifice. An actuator is operably connected to the poppet to overcome the closing force and move the poppet rapidly to a preset position. When the actuator is not actuated the closing force urges the poppet toward the valve seat to provide a positive shut-off.

REFERENCES:
patent: 2663318 (1953-12-01), Lakso
patent: 3512550 (1970-05-01), Ammann
patent: 4180239 (1979-12-01), Valukis
patent: 4421292 (1983-12-01), Matsui et al.
patent: 4976404 (1990-12-01), Ichikawa et al.

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