Step opening gas valve

Details Step opening gas valve Step opening gas valve

1976-02-04

1977-03-01

Cohan, Alan

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251210, 137495, 251 30, F16K 1710, F16K 31145

Patent

active

040098613

ABSTRACT:
A combination gas valve in which means associated with the main diaphragm valve is provided for opening the valve in a stepped manner. The combination valve includes an electromagnetic operator which controls the pressure differential across the main diaphragm valve so as to open and close it. The main valve seat surrounds a concentrically located recessed secondary valve seat. Slidably located on a stem extending from the main diaphragm valve, a secondary valve plate having a plurality of orifices therein is adapted to mate with the secondary valve seat so that initial opening of the main valve allows flow only through the orifices in the secondary valve and further opening of the main valve disengages the secondary valve from its seat, thus allowing full flow. On full flow conditions, a servo regulator provides a regulated output.

REFERENCES:
patent: 1379694 (1921-05-01), Pownall
patent: 3880186 (1975-04-01), Turner

Affiliated with

Also associated with

Rating

Step opening gas valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Step opening gas valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Step opening gas valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1348960