Formula Air RS-EXL Manuel d'entretien - Page 8
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The explosion resistant rotary valves (RS‐EXL) have been tested as explosion blocking devices
in dust explosive hazardous containers and/or equipment (zone 20 internally) for flammable
dust types (Kst max). The explosion pressure impact strength and break‐through resistance of
the Ex rotary valves have been demonstrated with coal dust until the maximum reduced
explosion pressure pred, max as flame break‐ through or spark break‐through did not take
place.
Break‐through and flame break‐through resistance in and against the transport direction have
been secured.
The sealing lists must ensure impermeability between rotor and casing.
User has to add such equipment that upon detection of an explosion the rotary valve will stop
automatically and instantaneously.
4.5.
Technical data
Net weight
Rotating speed RS‐3
Rotating speed RS‐7,5 / 9
4.6.
Transport
The type of transport, time, packaging and temperature has to be taken into consideration,
by selecting a safe method of transport.
4.7.
Lifting
In case of lifting, use only approved lifting equipment. Do not stay
under overhanging loads – DANGER ZONE!!!
IMPORTANT:
The lifting equipment must be approved for the current load.
Make sure that lifting and lowering occur as slowly as possible. Shock, vibration and fall may
cause imbalance and injury.
4.8.
Failure
Any electrical failure must be rectified by authorized personnel only. Any mechanical failure
must be rectified by authorized personnel only.
4.9.
Cleaning
The power supply to the unit must be disconnected safely and secured against reconnection
before cleaning.
7
Max. 110 kg
Max. 38 rpm
Max. 18 rpm