In-line fluid filtering devices and disc-filters useful in such

Details In-line fluid filtering devices and disc-filters useful in such In-line fluid filtering devices and disc-filters useful in such

1986-04-04

1987-12-22

Sever, Frank

Liquid purification or separation

Plural distinct separators

Filters

210330, 21033301, 210411, 210422, 210427, 210488, B01D 7500

Patent

active

047145528

ABSTRACT:
A filter device is disclosed, comprising two compartments within a housing. The first compartment includes a filter element, of the screen or the disc types, with communication to the filtered fluid outlet of the housing. A controllable valve communicates the first compartment with the inlet of the housing across the second compartment. A drain valve connects the first compartment with outside the housing. For flushing the filter element by reverse-flow, the first valve is closed and the flushing fluid drains through the drain valve. In a further embodiment two or more filter elements and associated compartments and valves are installed, in parallel, within the same housing, so that by stopping the filtering operation of one of the filter elements, it becomes flushed with the product, filtered fluid of the other element. The filter elements are preferably of the disc-type, and provided with a hydraulic piston and cylinder assembly for compacting and releasing the discs during the filtering and flushing modes of operation, respectively, to effect a more thorough rinsing of the discs. In addition, the displacement of the discs compacting cylinder can be controlled from outside the system.

REFERENCES:
patent: 4156651 (1979-05-01), Mehoudar

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