Dry filter revision | 3-899-R…
www.dilo-gmbh.com | C 1978-03 | Page 2 / 8
Use of the filter
The dry filter is provided for treating sulphur hexafluoride (SF
6
). The use for other purposes should be
agreed with the manufacturer.
max. operating pressure see type plate
max. operating temperature see type plate
The dry filter is a pressure vessel and is subject to the Pressure Vessels Directive CE 97/23.
It is classified in the category II in accordance with the Directive (if it is used for the purposes for which it
is intended). Prior to setting the filter into operation it should be equipped with the required safety
equipment such as gauge and safety valve or connected to non-blockable tube lines. These parts are
not included in the scope of supply.
Prior to setting the filter into operation it must be approved in accordance with the legal regulations which
are in effect. The operator is responsible for carrying out regular checks according to local laws and
regulations which are in effect. Only use the filter under the indicated pressure and temperature limiting
values. These values must not exceed or be lower than the limiting values.
Installation instructions
The flow direction of the filter should be observed.
The filter can be installed in a vertical or horizontal position.
The filter is to be installed and fixed so that it will not be damaged by vibrations. Furthermore, there
should not be any tensile force on the filter housing and the tube lines.
The filter housing must not be exposed to fluids or very humid and corrosive medium. If so, exchange the
desiccative immediately and check the housing parts for corrosion and replace them if necessary.
Carefully remove the penetrated humidity from the housing parts. If decomposed SF
6
is in the filter it
could be warmed by physical and chemical reactions. In this case the flow should be blocked or reduced
so that the temperture of the filter housing does not exceed the admissible operating temperature.
The housing parts which are under pressure must not be worked on mechanically and welded.
The type plate should not be modified, made illegilbe or removed.
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