Articleno.
20696110

MD 1C VARIO-SPVARIO®-SP chemistry diaphragm pump

Overview

  • contamination-free pumping and evacuation
  • high flow rate even near ultimate vacuum
  • VARIO®-SP = variable speed: Fast pump down at high motor speed, maintain vacuum with reduced motor speed
  • very powerful and extremely compact; whisper quiet and ultra-low vibration, especially at low speed
  • MD 1C VARIO-SP in chemistry design, with gas ballast valve and outstanding chemical resistance and superior vapor tolerance

Ultimate vacuum

2 mbar

Ultimate vacuum with gas ballast

4 mbar

Max. pumping speed 50 Hz

1.8 m3/h

VARIO®-SP chemistry diaphragm pump in action

The three-stage MD 1 VARIO-SP diaphragm pump with its variable speed drive system attains significantly higher pumping speed and a better ultimate vacuum than the corresponding fixed speed pump. The brushless 24V DC motor (maintenance-free) enables easy integration of the pump into other equipment and operation independent of line voltage. The pump is particularly silent and vibration-free, and has an outstanding lifetime of its diaphragms and valves. For exceptional chemical resistance of the pump´s internal flowpath it is also available as a chemistry design version (MD 1C VARIO-SP). The MD 1 VARIO-SP is an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases. The motor speed is either fixed or can be adjusted externally via electronic control signals for adaption to process requirements. For chemistry applications all major parts of the chemistry design pump MD 1C VARIO-SP in contact with pumped media are made of chemically resistant fluoroplastics. Both pump types are extremely compact and mountable in any position and are therefore the ideal built-in or system pump. Customized versions of these pump types are available on request.

Technical data and graphs

Max. pumping speed 50 Hz 1.8 m3/h Select diagram
Max. pumping speed 60 Hz 1.0 cfm
Ultimate vacuum 2 mbar / 1.5 torr
Ultimate vacuum with gas ballast 4 mbar / 3 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 Hose nozzle DN 8-10 mm
Outlet connection Hose nozzle DN 8 mm
Rated motor power 0.064 kW
Minimum motor speed VARIO in min-1 200 min-1
Maximum motor speed VARIO in min-1 2400 min-1
Protection class IP 20
Dimension L in mm 235 mm
Dimension W in mm 143 mm
Dimension H in mm 175 mm
Weight 4.2 kg
Noise level at 50 Hz, typ. 37 dBA
ATEX conformity II 3/- G Ex h IIC T3 Gc X Internal Atm. only
NRTL certification Yes
Items supplied Pump completely mounted, ready for use, with 2 m cable without plug and with manual.
Rated mains voltage range 1 24 V
Mains frequency 1 DC

Downloads

Please select a plug type to obtain its operating instructions.

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Application examples

Fore_vacuum_for_turbomolecular_pumps
Fore vacuum for turbomolecular pumps

VARIO®-SP chemistry diaphragm pump in action

The three-stage MD 1 VARIO-SP diaphragm pump with its variable speed drive system attains significantly higher pumping speed and a better ultimate vacuum than the corresponding fixed speed pump. The brushless 24V DC motor (maintenance-free) enables easy integration of the pump into other equipment and operation independent of line voltage. The pump is particularly silent and vibration-free, and has an outstanding lifetime of its diaphragms and valves. For exceptional chemical resistance of the pump´s internal flowpath it is also available as a chemistry design version (MD 1C VARIO-SP). The MD 1 VARIO-SP is an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases. The motor speed is either fixed or can be adjusted externally via electronic control signals for adaption to process requirements. For chemistry applications all major parts of the chemistry design pump MD 1C VARIO-SP in contact with pumped media are made of chemically resistant fluoroplastics. Both pump types are extremely compact and mountable in any position and are therefore the ideal built-in or system pump. Customized versions of these pump types are available on request.

Technical data and graphs

Max. pumping speed 50 Hz 1.8 m3/h Select diagram
Max. pumping speed 60 Hz 1.0 cfm
Ultimate vacuum 2 mbar / 1.5 torr
Ultimate vacuum with gas ballast 4 mbar / 3 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 Hose nozzle DN 8-10 mm
Outlet connection Hose nozzle DN 8 mm
Rated motor power 0.064 kW
Minimum motor speed VARIO in min-1 200 min-1
Maximum motor speed VARIO in min-1 2400 min-1
Protection class IP 20
Dimension L in mm 235 mm
Dimension W in mm 143 mm
Dimension H in mm 175 mm
Weight 4.2 kg
Noise level at 50 Hz, typ. 37 dBA
ATEX conformity II 3/- G Ex h IIC T3 Gc X Internal Atm. only
NRTL certification Yes
Items supplied Pump completely mounted, ready for use, with 2 m cable without plug and with manual.
Rated mains voltage range 1 24 V
Mains frequency 1 DC

vac_pumpingspeedm3 für Zoom klicken

Max. pumping speed 50 Hz

vac_pumpingcurve50 für Zoom klicken

Pump down graph 50 Hz (10 l volume)

Downloads

Please select a plug type to obtain its operating instructions.

Equipment

This might also interest you

Application examples

Fore_vacuum_for_turbomolecular_pumps
Fore vacuum for turbomolecular pumps