Sanitary control back pressure diaphragm valve and sanitary cont

Details Sanitary control back pressure diaphragm valve and sanitary cont Sanitary control back pressure diaphragm valve and sanitary cont

1987-09-09

1988-10-25

Walton, George L.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

134168C, 134169C, 251 25, 251 45, 251 612, B08B 304, B08B 906, F16K 31128

Patent

active

047796413

ABSTRACT:
A sanitary control back pressure diaphragm valve employed in a sanitary control system wherein the sanitary valve controls the pressure applied to a fluid in a sanitary contained system, which valve comprises: a valve body having an upper and lower valve member defining a generally conical fluid passageway and a valve seat, the members adapted to move between an open position and a closed position; a diaphragm support between the upper and lower members and a resilient diaphragm on the members on the diaphragm support to provide a seal between the upper and lower members and to provide for relative movement of said valve members between the open and closed valve position, the upper and lower valve members defining a generally conical valve passageway between the valve members, and the valve including a pressurized air inlet to provide controlled air pressure of one member; a sanitary fluid inlet extending in a straight line at an angle into the fluid passageway and a sanitary fluid outlet for the discharge of sanitary fluid from the valve, and optionally, the resilient diaphragm having a plurality of extending channels therein between the upper and lower valve members.

REFERENCES:
patent: 2877978 (1959-03-01), Rider et al.
patent: 3416461 (1968-12-01), McFarland
patent: 3659625 (1972-05-01), Corner et al.
patent: 3703188 (1972-11-01), Wagner

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