Patent ID: 6398037
Filing Date: 2002-06-04
Classification: B01D

Abstract:
A liquid filtering device, particularly for irrigation water installations of the type comprising:a cylindrical housing with an inlet port and an outlet port; a cylindrical filter member installed within the housing so that, water flowing from the inlet port to the outlet port enters the filter member in a radial direction, and is discharged through the outlet port, and vice-versa during reversed, filter flushing flow cycles; a core member centrally mounted within the cylindrical space defined by the filter member, and integrally formed to include at least one tubular conduit extending off-centrally along an internal generatrix line of the filter member and provided with a series of nozzles for ejecting jets in the direction of the filter member during said reverse filter flushing flow cycles, a support for the filter member, and a fixed member abutting against the filter member at one axial side thereof; a cylinder-and-piston assembly mounted to the core member, comprising a displaceable member abutting against the filter member at the other axial side thereof; and means for applying pressure to the assembly whereby the displaceable member becomes displaced away of the fixed member.