Product quality and reliability has always been a core for Leader Hydraulics, ensuring our customers have a component that is certified and specified for their systems.

Working closely with our dedicated sales partners Filtration Group, we can ensure their filter elements have been tested and evaluated post manufacturing thus eliminating risks of faults and anomalies.

Filtration Group have gone above and beyond to ensure their products leave at a premium standard, thus supporting their position as one of the leading manufacturers in the filtration sector and a valuable asset in Leader Hydraulics arsenal.


With the MULTIPASS TEST, the filter element must
show that it’s properly capturing the contaminates as
promised: The separation efficiency and dirt holding
capacity are determined here.

The FLOW MEASUREMENT records important filter
characteristics which are measured by the pressure
increase in the volume flow.

At the PULSATION TEST, the housing and filter heads
are subjected to powerful pressure: This shows how
long the parts can withstand continuous pressure pulsations with low, medium and high pressure.

At the BURST PRESSURE TEST everything goes
to pieces – and that‘s exactly what needs to happen.
The filters must withstand extreme pressure. A burst
pressure test is conducted to make sure that the filter
will continue to last at pressures far greater than the
normal operating pressure. Otherwise, it goes back to
the development workshop.

The COLLAPSE PRESSURE TEST also tests for failure
of the filter as the fluid passes from the outside of filter to
the inside as a result of extreme differential pressure. They
must withstand a pre-defined differential pressure.

During the BUBBLE POINT TEST, the seal of the filter
elements is put to the test. Compressed air is intro

duced at the filter inlet and then increased until a stream
of bubbles occurs. We design our seals so they do not
leak at higher pressures.

The FLOW ENDURANCE RESISTANCE of a filter
element is also tested. This determines how long the
filter element can withstand a pulsating load.

The HIGH PRESSURE TEST is used to test in accordance with the TÜV or by marine companies such as
DNVGL, Det Norske Veritas or Lloyd‘s Register.

In the MICROSCOPICAL EXAMINATION, the
particles that have been filtered out of the liquid or are
present in an oil sample are examined in detail.

The FTIR SPECTROMETER is used to detect
organic compounds or chemical changes in the oil.
This provides crucial information for the selection of the
appropriate filter.

The FLENDER TEST helps to reduce excessive oil
foaming: Two gears supply air to a hydraulic or transmission oil to check how quickly an air-oil dispersion
concentration harmful to the hydraulic system is
formed.


For additional information please don’t hesitate to contact one of our sales representatives.