The filter element is the central component of a filter.
The actual filtration process takes part in the filter
element. The main filter variables, such as retention
capacity, dirt holding capacity and pressure loss are
determined by the filter elements and the filter media used
Rexroth filter elements are used for the filtration of
lubricants in wind turbines. The series elements
cist of two separate filter elements which are flown
through one after the other and a bypass valve.
In order to achieve the cleanliness class, the outer filter
element made of non-woven glass fiber media (1) serves
as the main filter. The inner filter element (2) made of wire
mesh serves as a protective filter in case of a cold start.
The outer filter element (1) cists of a multi-layer
combination of star-like pleated filter media which are laid
around a perforated support tube. The bypass valve (3) is
located in the cover of the filter element. The bypass valve
has a cracking pressure of 4 bar The inner filter
element (2) is set-up in the same way, except for the filter