G - Physics – 05 – D
Patent
G - Physics
05
D
137/44
G05D 7/00 (2006.01) B05B 7/14 (2006.01) B05B 12/08 (2006.01) G05D 16/02 (2006.01) G05D 16/06 (2006.01) G05D 16/16 (2006.01)
Patent
CA 1128403
ABSTRACT A pressure-regulator for gaseous and liquid flow-media is disclosed. The regulator has a main valve arranged between an inlet and an outlet for the flow-medium, the body of the valve closing the valve-seat, or opening it to different degrees, depending upon the regulating condition. In a control pressure chamber, the pressure acts upon the main valve-body and the chamber is connected, on the one hand, through a choke, to the inlet and, on the other hand, through a control-valve, to a de-aerating chamber. There is a rated-value transmitter, the setting of which applies to the body of the control valve a specific force which urges it, against the pressure obtaining in the control-pressure chamber, in the direction of closing. There is also a device for detecting and feeding back the actual value present at the outlet. The invention is characterized in that a return-pressure chamber is provided, the pressure in which acts, against the pressure obtaining in the control-pressure chamber, upon the main valve body, and which is connected, on the one hand, through a choke, to the outlet and, on the other hand, through an adjustable choke, to the de-aerating chamber.
339856
Fetherstonhaugh & Co.
Gema Ag Apparatebau
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