Observing The Permissible Gas Inlet Temperature; Technical Ventilation (Extraction) - Binder VDL Series Operating Manual

1.7.2.2

Observing the permissible gas inlet temperature

Confirm that the vacuum pump / vacuum system is designed for a gas inlet temperature corresponding to
the used drying temperature, or take appropriate measures to cool down the extracted vapor before it
enters the vacuum pump / vacuum system. If the gas inlet temperature is too high and then becomes
even warmer by compression in the pump, the resulting temperature (of the gas-solvent mixture inside
the pump) could exceed the solvent's temperature class and auto-ignition temperature. The ATEX com-
pliant vacuum pumps offered by BINDER are designed for a gas inlet temperature of 40 °C / 104 °F
max. Do NOT exceed this temperature.
Fire and explosion hazard by exceeding the auto-ignition temperature of the solvent
due to excessive gas inlet temperature
Damage to the vacuum pump. Serious injury or death from burns and / or explosion
pressure.
∅ Do NOT exceed the maximum gas inlet temperature of the pump (ATEX compliant
vacuum pumps from BINDER: 40 °C).
 When operating with a higher set-point temperature take appropriate measures to cool
down the extracted vapor before it enters into to the vacuum pump.
1.7.2.3

Technical Ventilation (extraction)

When manipulating the vacuum pump (removing the filled condensate catchpot of the pump) or in the
event of an error (e.g. dropping or spilling the filled condensate catchpot) spreading of an explosive at-
mosphere to unprotected parts of the pump or the vacuum drying oven would be possible.
The operator must provide active extraction (technical ventilation according to country-specific regulations
– TRBS 2152 Part 2 for Germany) prior to commissioning and manipulating the vacuum pump. Extraction
must include the entire installation area of the vacuum drying oven, the pump and, if appropriate, the
pump module. Handling the pump always takes place under technical ventilation.
This will prevent spreading of an explosive atmosphere to unprotected chamber parts other than the de-
fined area (see Chap. 3.5).
Explosion hazard due to the spread of an explosive atmosphere to unprotected
parts of the pump or the vacuum drying oven and ignition due to electric sparking
or hot surfaces.
Serious injury or death from burns and / or explosion pressure.
 Provide active suction (technical ventilation according to country-specific regulations
(TRBS 2152 Part 2 for Germany) prior to commissioning the vacuum pump.
 Extraction must include the entire installation area of the vacuum drying oven, the pump
and, if appropriate, the pump module.
 When using the pump module, connect an extraction system to the provided exhaust
port as described in the mounting instructions of the pump module (Art. no. 7001-0137).
VDL (E3.1) 06/2020
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