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US 8,910,650 B2Granted
Method for operating a valve
AssigneeAlfa Laval Kolding A/S
InventorsJens Folkmar Andersen, Karsten Schack Madsen, Kenneth Rehhoff
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AssigneeAlfa Laval Kolding A/S
InventorsJens Folkmar Andersen, Karsten Schack Madsen, Kenneth Rehhoff
Estimating the term…
A method for process optimization for a valve (1) comprising a valve seat (5) arranged in a valve housing (3) between an inlet (7) and an outlet (8), comprising a valve disk (4) which is connected to an actuating rod (10) and comprising an actuating device (2) which acts on the actuating rod (10), by which means the valve disk (4) is brought into a closed position (23) for closing the valve (1) and is pressed onto the valve seat (5) and for opening the valve (1) is raised from the valve seat (5) and brought into an opening position (26), wherein fluid flows through the valve (1) for carrying out the method in the course of cleaning, can be improved with regard to a better cleaning effect in remote regions (14, 15, 16) of the interior (17) of the valve housing (3) whereby during cleaning the valve disk (4) is brought into at least one intermediate position (24, 24, 31) between the closed position (23) and the open position (26).
A method for operating a valve having a valve seat arranged in a valve housing between an inlet and an outlet, having a valve disk connected to an actuating rod and having an actuating device which acts on the actuating rod, whereby the valve disk is brought into a closed position for closing the valve by pressing the valve disk against the valve seat, and for opening the valve the valve disk is raised from the valve seat and brought into an open position, wherein during cleaning of the valve, while cleaning fluid flows through the valve from the inlet to the outlet, the valve disk:
An actuating device for a valve having a valve seat arranged in a valve housing enclosing a space for a cleaning fluid to flow between an inlet and an outlet and having a valve disk connected to an actuating rod, wherein the actuating device acts on the actuating rod, and wherein the valve is further provided with a control unit, the actuating device comprising an actuating motor configured to move the valve disk into at least a closed position at which the cleaning fluid in the space is prevented from flowing out of the outlet, an open position in which the cleaning fluid is permitted to flow through the outlet, and a first intermediate position between the closed position and the open position, the control unit controls the actuating motor to:
A cleaning method for a valve including a valve housing possessing an inlet and an outlet, a valve seat positioned between the inlet and the outlet, a valve disk configured to close the valve by pressing against the valve seat in a closed position and open the valve by moving away from the valve seat to an open position, an actuating rod connected to the valve disk, an actuating device configured to move the valve disk with the actuating rod to the closed position, the open position, a first intermediate position between the closed position and the open position and a second intermediate position between the closed position and the open position, the cleaning method comprising:
Dependencies are inferred from the claim text.