Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1983-06-17
1985-06-11
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
137312, 13761417, 13761418, 13761419, 1376372, 134166C, 251332, F16K 1120, B08B 902
Patent
active
045222231
ABSTRACT:
The present invention relates to a double poppet valve comprising two independently movable valve heads cooperating with a valve seat located in a valve housing between an inlet duct and an outlet duct for a liquid product, and enclosing therebetween in the open position as well as in the closed position a leak control space adapted to be sealed in the open position of the valve to reduction of the distance between the two valve heads caused on opening of the valve by one of the valve heads being advanced so as to engage the other valve head at the end of a predetermined stroke, whereafter the two valve heads are forced into mutual sealing engagement by a spring force, the advancing valve head being affixed to a hollow actuating rod adapted to have supplied therethrough a cleaning liquid for said leak control space, a drain pipe communicating with said leak control space being provided for draining said cleaning liquid to the exterior. The invention provides that the follower valve head is connected to an actuating tube in which the actuating rod of the advancing valve head is slidably guided, that furthermore the seat for the two valve heads is formed as a cylindrical valve seat, and that the hollow actuating rod of the advancing valve head is provided in the vicinity of the leak control space with injection bores for said cleaning liquid opening into said space in radial directions.
REFERENCES:
patent: 2202735 (1940-05-01), Johnson
patent: 3126028 (1964-03-01), Kurfiss
patent: 3508581 (1970-04-01), Woessner
patent: 3552426 (1971-01-01), Hester
patent: 4304251 (1981-12-01), Schadel et al.
patent: 4344453 (1982-08-01), Tuchenhagen et al.
patent: 4360039 (1982-11-01), Jeppsson
patent: 4368753 (1983-01-01), Brakelmann
patent: 4373545 (1983-02-01), Knappe
Balsys Manfred
Kling Dieter
Maier Hans
Miller Franz
Schmid Walter
Albert Handtmann Armaturenfabrik GmbH & Co., KG.
Nilles James E.
Walton George L.
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