Orifice device with safety shut-off for pressure regulators

Details Orifice device with safety shut-off for pressure regulators Orifice device with safety shut-off for pressure regulators

F - Mech Eng,Light,Heat,Weapons

16

K

137/44

F16K 31/00 (2006.01) G05D 16/06 (2006.01)

Patent

CA 1105353

ORIFICE DEVICE WITH SAFETY SHUT-OFF FOR PRESSURE REGULATORS ABSTRACT A pressure regulator of the spring loaded dia- phragm type having a chamber on one side of the dia- phragm and provided with an inlet and an outlet separated by a transverse wall into which an orifice device is mounted for stopping the flow of gas through the regulator during excess flow or low outlet pressure conditions. During normal operation the valve element actuated by the diaphragm will co-act with the valve seat of the orifice device to regulate the thruput flow, while engaging a valve stem of the orifice device to hold the same open. The orifice device has a body through which the valve stem extends. A helical spring interconnects the body and the valve stem by being separately thread- ed to each component whereby the orifice device is normally biased in a closed position.

330016

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