Pressure regulator and flow control valve with pre-exhaust

Details Pressure regulator and flow control valve with pre-exhaust Pressure regulator and flow control valve with pre-exhaust

G - Physics

05

D

137/44

G05D 7/01 (2006.01) F15B 13/02 (2006.01)

Patent

CA 1140023

ABSTRACT Pressure Regulating and Flow Control Valve A combination pressure regulating and flow control valve having an upstream port and a downstream port inter- connected by a flow passage. An adjustable pressure regu- lating valve is mounted in said flow passage for regulating the downstream pressure in said flow passage. The adjust- able flow control valve is mounted in parallel with said pressure regulating valve in said flow passage for providing a meter out action on pressurized air flowing through said passage from said downstream port to said upstream port. The adjustable fluid flow control valve is shown in one em- bodiment as being provided with an adjustable quick exhaust valve structure for quickly dumping the exhausting air to reduce the pressure thereof to a reduced predetermined level, after which the meter out action follows.

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