Pilot-controlled water pressure-operated diaphragm shut-off valv

Details Pilot-controlled water pressure-operated diaphragm shut-off valv Pilot-controlled water pressure-operated diaphragm shut-off valv

1989-05-03

1990-12-18

Michalsky, Gerald A.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137403, 251 3003, 251 45, F16K 31128, F16K 3134

Patent

active

049779230

ABSTRACT:
A pilot controlled diaphragm shut-off valve (13) includes a cushion body (22) disposed in a pilot pressure chamber (20). The cushion body (22)operates to gradually allow the build up of pressure in the pilot pressure chamber (20) as water enters through a pilot orifice (21a) into the pilot pressure chamber (20). Such gradual pressure build up in the pilot pressure chamber (20) allows a gradual closing velocity of the shut-off diaphragm valve (13) and thereby eliminates the water hammer phenomena. An actuating diaphragm (32) is provided for opening and closing a pilot valve (24). Alternatively, a float (43) may be employed for opening and closing the pilot valve (24). Either the actuating diaphragm (32) or the float (43) is linked to a stem (23) and lever (26) mechanism, or alternatively to a magnetic linkage (40, 41, 42a).

REFERENCES:
patent: 4640309 (1987-02-01), Hoffman et al.

Affiliated with

Also associated with

Rating

Pilot-controlled water pressure-operated diaphragm shut-off valv does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pilot-controlled water pressure-operated diaphragm shut-off valv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot-controlled water pressure-operated diaphragm shut-off valv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1420296