Description:

Duplex pressure filters with change-over valve type HDD are suitable for a working pressure up to 315 bar.
Pressure peaks can be absorbed with a sufficient margin of safety.
Duplex filters can be maintained without interruption. The upper part has a three-way-change-over valve which allows to changeover the flow from the dirty filter-side to the clean filter-side without interrupting the operation. The change-over procedure does not lead to a reduction of area.
The change-over can be done easily by opening of the changeover valve.
The mini-measuring connections on each filter-side allow the measuring of the pressure drop through the filter element, as well as at the pressure discharge of the tube plug during the maintenance.
Filter elements are available down to a filter fineness of 4 µm(c).
INTERNORMEN-Filter elements consist of filter materials with a high intrinsic stability, an excellent particle retention, respectively a high dirt holding capacity and provide a long service life.
INTERNORMEN-Filters can be used for mineral oil based fluids, HW-emulsions, water glycols, most synthetic hydraulic fluids and lubrication fluids.
The internal valves are integrated into the centering pivot for the filter element.
After reaching the opening pressure the by-pass valve causes that an unfiltered partial flow passes the filter. With the reverse valve a protection of the filter element is given when having a reverse flow inside the filter. The reverse flow will not be filtered.

visual AOR/AOC

visual-electrical AE

electronical VS1

electronical VS2