1.5 For use in hazardous areas
Attention!
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Explosion hazard!
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Fire hazard!
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1.6 Residual risks
Safeguards may become ineffective if the devices are not used according to the chemical
resistance chart.
Further residual risks that are linked with the repair or maintenance of the high viscosity
liquid pump cannot be reduced constructive or by taken further precautions. If necessary,
they are mentioned at the appropriate passage.
Information
Always observe the chemical resistance chart when selecting a motor, pump,
quick action taps and hoses.
Observe the EC type examination certificate and the certificate of conformity,
respectively.
The pump must not be used as a stationary unit in hazardous locations.
For use in hazardous locations only use explosion-proof electric motors
which are approved for category 2 (ZONE 1) or compressed air motors.
For transferring liquids of explosion groups IIA and IIB and temperature
class T1 to T4, only pumps which are certified for use in category 1 (ZONE
0) must be used.
If the motors are operated together with the pump, comprehensive, clear
equipotential bonding is essential (earthing).
For equipotential bonding, an electrically conductive connection must be
produced between the motor and the pump according to EN 60079-14.
The High viscosity liquid pumps must be arranged in a way to avoid friction
and impact sparks and to allow safe operation.
Repair on explosion-proof motors may only be carried out by the manufac-
turer or by an authorised repair shop.
When mixing non-conductive liquids, there is a risk of the circulated liquid
becoming electrostatically charged.
Make sure to prevent any ignition hazards.
The ex-protected motor must be located outside the mobile container.
The hose used must be sufficiently conductive (see TRbF 50 annex B).
Observe the Technical Guidelines for "Flammable Liquids" (TRbF) and the
explosion protection guidelines of the Employer's Liability Insurance Associ-
ation of the Chemical Industry (BG Chemie) during installation and opera-
tion.
For transferring of liquids of explosion groups IIA and IIB and temperature
class T1 to T4, only pumps which are certified for use in category 1 (ZONE
0) must be used.
Original Manual High Viscosity Liquid Pumps Type F 550
and Sanitary Pumps Type F 560
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