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1. (WO2017036856) FLUID FILTER AND FILTER INSERT FOR THE SAME

Pub. No.:    WO/2017/036856    International Application No.:    PCT/EP2016/069896
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Aug 24 01:59:59 CEST 2016
IPC: B01D 35/153
B01D 29/15
Applicants: HENGST SE
Inventors: ARDES, Wilhelm
Title: FLUID FILTER AND FILTER INSERT FOR THE SAME
Abstract:
The invention relates to a fluid filter (1) which can be mounted on a connection flange (4) having a central stand pipe (40), wherein the fluid filter (1) has an exchangeable filter insert (3) with a hollow cylindrical filter material body (30) encased on the end faces by two end plates (31) and mountable on the stand pipe (40), and wherein the fluid filter (1) has a cup-shaped screw housing (2), which has a screw thread in the center of its base, can be screwed to a mating thread applied on a free end of the stand pipe (40), and supports a seal (22) on the free edge (20) thereof, by means of which the screw housing (2) can be sealed against a sealing surface (45) of the connection flange (4) in the mounted state. The fluid filter (1) according to the invention is characterized in that the filter insert (3) has first centering means (33, 34.1, 36) on the end face area thereof facing the connection flange (4) in the installed state for centering the end face area relative to the connection flange (4) and in that the filter insert (3) has second centering means (34, 34.2) on the outer periphery of the end face area thereof facing the connection flange (4) in the installed state for centering the free edge (20) of the screw housing (2) relative to the sealing surface (45) of the connection flange (4), wherein the second centering means (34, 34.2) interact in a centering manner with the free edge (20) of the screw housing (2) in the installed state. In addition, the invention relates to a filter insert (3) for use in a fluid filter (1) of the previously described type.