Free-floating diaphragm flow control valve

Details Free-floating diaphragm flow control valve Free-floating diaphragm flow control valve

2005-08-09

2005-08-09

Bastianelli, John (Department: 3751)

Valves and valve actuation

Detachable actuator

C251S344000

Reexamination Certificate

active

06926251

ABSTRACT:
A free floating diaphragm flow control valve includes concentric inner and outer bodies, where a partition plate divides the inner body into two equal inlet and outlet chambers. A cylindrical cavity, concentric with the inner and outer cylindrical bodies, provides space for a sheet diaphragm looping around a seat provided by the inner cylindrical body. The doubled up ends of the sheet diaphragm are held together by a tie assembly which has an integral bolt stem held that is shared with an actuator, which actuator, working in tandem with the pipe line's pressurized fluid around the diaphragm, can actuate the diaphragm's tied up ends, to open or close the diaphragm around its seat to control the fluid flow through the valve.

REFERENCES:
patent: 2509671 (1950-05-01), Christensen
patent: 3642249 (1972-02-01), Cruse
patent: 4049018 (1977-09-01), Skibowski
patent: 5782455 (1998-07-01), Burnworth
patent: 5979492 (1999-11-01), Miller
patent: 6196477 (2001-03-01), Halltorp et al.

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