Binder vdl 23 - Figure 19: Vacuum Pump VP 4 (MZ2 C EX); Vacuum Pump VP4 (Option)

VDL (E3) 09/2019 Page 66/234
6.4.2 Vacuum pump VP4 (option)
. The VP4 chemical membrane pump is located in a separate transport packaging. It is delivered as com-
plete pump station with a separator and an exhaust waste vapor condenser.
We recommend to install the vacuum pump in the optional pump module. For installation of the pump,
please refer to chap. 6.4.3.
Outlet port (gas!)
Exhaust waste vapor
condenser
Cooling water inlet (hose
nozzle 6 mm / 0.23 in)
Round bottom flask as con-
densate catchpot
Cooling water outlet (hose nozzle 6 mm)
Guard plate
Carrying handle
Inlet (vacuum connection)
Figure 19: Vacuum pump VP 4 (MZ2C EX)
Defining the zone of the installation site of the vacuum pump (Directive 1999/92/EC)
If the pump module is defined as Zone 1, the operating chamber of the vacuum pump must be swept with
inert gas. A flow of at least 1 liter per minute (without pressure) is needed. For Zone 2 or without any zone
sweeping with inert gas is not required. In addition to sweeping with inert gas, in case of condensing me-
dia, you can connect a gas ballast in order to avoid condensation.
The ATEX Directive 2014/34/EU compliant vacuum pump offered by BINDER is designed for a gas
inlet temperature of 40 °C / 104 °F max. Do NOT exceed this temperature. 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 tem-
perature.
DANGER
Fire and explosion hazard due to exceeding the solvent‘s auto-ignition temperature
by exceeding the gas inlet temperature.
Damage to the vacuum pump. Serious injury or death from burns and / or explosion
pressure.
 Do NOT exceed the set-point temperature 40 °C / 104 °F.
 With a set-point temperature above 40 °C / 104 °F, take appropriate measures to cool
down the sucked-in gas before its entry to the vacuum pump.
The maximum permissible ambient temperature of the vacuum pumps supplied by BINDER is 40 °C /
104 °F.