MD 4C EXChemistry diaphragm pump

Overview

  • outstanding chemical resistance and superior vapor tolerance
  • flame proof motor with integrated, self-locking overload and excess temperature protection for direct 230V / 50Hz single phase power supply. No need for any additional and specific overcurrent protection device
  • overpressure safety relief valves internally and at outlet
  • safety diaphragm technology with option for inert gas purge and detection of diaphragm breakage

Ultimate vacuum

3 mbar

Ultimate vacuum with gas ballast

10 mbar

Max. pumping speed 50 Hz

3.7 m3/h

Articleno. 20696930
On demand

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Chemistry diaphragm pump in action

ATEX chemistry diaphragm pumps offer all advantages of oil-free chemistry diaphragm pumps. Typical applications are rotary evaporators and drying ovens with potentially explosive atmospheres. The ATEX approval includes the interior of the pump (in contact with pumped gases) as well as the surrounding area of the pump. All wetted parts of the pumps have excellent chemical resistance and are mainly made of antistatic materials. Included in delivery is a separate gas ballast connection part for use of inert gas.


Information on the disposal of old devices »
 

Technical data and graphs

Max. pumping speed 50 Hz 3.7 m3/h
Ultimate vacuum 3 mbar / 2.3 torr
Ultimate vacuum with gas ballast 10 mbar / 7.5 torr
Number of heads 4
Number of stages 3
Lower ambient temperature (operation) 10 °C
Upper ambient temperature (operation) 40 °C
Lower ambient temperature (storage) -10 °C
Upper ambient temperature (storage) 60 °C
Max. back pressure (abs.) 1.1 bar
Inlet connection small flange KF DN 25
Outlet connection small flange KF DN 16
Rated motor power 0.25 kW
Rated motor speed at 50/60 Hz 1500 min-1
Protection class IEC 60529 IP 54
Dimension L in mm 440 mm
Dimension B in mm 265 mm
Dimension H in mm 305 mm
Weight 29.3 kg
Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 53 dBA
ATEX conformity Pumping chamber (pumped gases): II 2G Ex h IIC T3 Gb X, Environment with inert purge gas: II 2G Ex h IIB T4 Gb X, Environment without inert purge gas: II 3G Ex h IIB T4 Gc X, Motor: II 2G Ex db IIB T4 Gb
NRTL certification No
Items supplied Pump completely mounted, ready for use, with manual, 2 m cable without plug.
Rated mains voltage range 1 230 V
Mains frequency 1 50 Hz

vac_pumpingcurve50 für Zoom klicken

Pump down graph 50 Hz (100 l volume)

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Chemistry diaphragm pump in action

ATEX chemistry diaphragm pumps offer all advantages of oil-free chemistry diaphragm pumps. Typical applications are rotary evaporators and drying ovens with potentially explosive atmospheres. The ATEX approval includes the interior of the pump (in contact with pumped gases) as well as the surrounding area of the pump. All wetted parts of the pumps have excellent chemical resistance and are mainly made of antistatic materials. Included in delivery is a separate gas ballast connection part for use of inert gas.


Information on the disposal of old devices »
 

Technical data and graphs

Max. pumping speed 50 Hz 3.7 m3/h
Ultimate vacuum 3 mbar / 2.3 torr
Ultimate vacuum with gas ballast 10 mbar / 7.5 torr
Number of heads 4
Number of stages 3
Lower ambient temperature (operation) 10 °C
Upper ambient temperature (operation) 40 °C
Lower ambient temperature (storage) -10 °C
Upper ambient temperature (storage) 60 °C
Max. back pressure (abs.) 1.1 bar
Inlet connection small flange KF DN 25
Outlet connection small flange KF DN 16
Rated motor power 0.25 kW
Rated motor speed at 50/60 Hz 1500 min-1
Protection class IEC 60529 IP 54
Dimension L in mm 440 mm
Dimension B in mm 265 mm
Dimension H in mm 305 mm
Weight 29.3 kg
Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 53 dBA
ATEX conformity Pumping chamber (pumped gases): II 2G Ex h IIC T3 Gb X, Environment with inert purge gas: II 2G Ex h IIB T4 Gb X, Environment without inert purge gas: II 3G Ex h IIB T4 Gc X, Motor: II 2G Ex db IIB T4 Gb
NRTL certification No
Items supplied Pump completely mounted, ready for use, with manual, 2 m cable without plug.
Rated mains voltage range 1 230 V
Mains frequency 1 50 Hz

vac_pumpingcurve50 für Zoom klicken

Pump down graph 50 Hz (100 l volume)

Equipment

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