Description:

The filter-batteries of the series BHDD are suitable for the filtration of large flow volumes up to a working pressure of 4568 PSI bar and are stressing a high filter efficiency. The duplex pressure filters, of the filter-batteries consist of high quality spheroidal graphite cast iron (EN-GJS-400-18-LT) resp. c-steel. The
intrinsic joint plate is made out of high-tensile aluminium alloy.
Duplex filters can be maintained without interruption of operation, as the change-over device allows to change-over the flow from the dirt filter-side to the clean filter-side after opening of pressure balance valve. For changing the filter elements the filter tubes have to be opened at the tube plug (bottom part of the filter). Filter elements are available down to a filter fineness of 4μm (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.
INTERNORMEN-Filter elements are available with a pressure difference resistance up to Δp 2320 PSI and a rupture strength up to Δp 3625 PSI.
The internal valves are integrated into the centering pivot for the filter element. After reaching 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.

 

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