Articleno.
20736445

MD 4CRL NTChemistry diaphragm pump

Overview

  • outstanding chemical resistance
  • exceptionally high performance even close to the very low ultimate vacuum
  • integral leakage rate 0.001 mbar l/s verified at every single pump
  • whisper quiet and very low vibration
  • long diaphragm life, maintenance-free drive system

Ultimate vacuum

1.5 mbar

Ultimate vacuum with gas ballast

# mbar

Max. pumping speed 50 Hz

3.4 m3/h

On demand

Inquire

Chemistry diaphragm pump in action

For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The three-stage construction provides the advantageous combination of high pumping speed and very low ultimate vacuum. All major parts of the MD 4CRL NT in contact with pumped media are made of chemically resistant fluoroplastics or a special, highly corrosion-resistant stainless steel. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s. For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The wetted parts of the pump are made of fluoroplastics and a special, highly corrosion-resistant stainless steel. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s.

Technical data and graphs

Max. pumping speed 50 Hz 3.4 m3/h Select diagram
Max. pumping speed 60 Hz 2.2 cfm Select diagram
Ultimate vacuum 1.5 mbar / 1.1 torr
Ultimate vacuum with gas ballast # mbar / # 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
Anschluss saugseitig small flange KF DN 16
Outlet connection small flange KF DN 16
Rated motor power 0.25 kW
Rated motor speed at 50/60 Hz 1500/1800 min-1
Protection class IP 40
Dimension L in mm 325 mm
Dimension W in mm 243 mm
Dimension H in mm 198 mm
Weight 19.8 kg
Noise level at 50 Hz, typ. 45 dBA
ATEX conformity II 3/- G IIC T3 X Internal Atm. only
NRTL certification Yes
Items supplied Pump completely mounted, ready for use, with manual.
Rated mains voltage range 1 200-230 V
Rated mains voltage range 2 100-115 V
Rated mains voltage range 3 120 V
Mains frequency 1 50-60 Hz
Mains frequency 2 50-60 Hz
Mains frequency 3 60 Hz

vac_pumpingspeedm3 für Zoom klicken

Max. pumping speed 50 Hz

vac_pumpingspeedcfm für Zoom klicken

Max. pumping speed 60 Hz

vac_pumpingcurve50 für Zoom klicken

Pump down graph 50 Hz (10 l volume)

vac_pumpingcurve60 für Zoom klicken

Pump down graph 60 Hz (10 l volume)

Downloads

Please select a plug type to obtain its operating instructions.

Equipment

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Application examples

Rotary_evaporators
Rotary evaporators
Vacuum_concentrators
Vacuum concentrators

Chemistry diaphragm pump in action

For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The three-stage construction provides the advantageous combination of high pumping speed and very low ultimate vacuum. All major parts of the MD 4CRL NT in contact with pumped media are made of chemically resistant fluoroplastics or a special, highly corrosion-resistant stainless steel. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s. For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The wetted parts of the pump are made of fluoroplastics and a special, highly corrosion-resistant stainless steel. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s.

Technical data and graphs

Max. pumping speed 50 Hz 3.4 m3/h Select diagram
Max. pumping speed 60 Hz 2.2 cfm Select diagram
Ultimate vacuum 1.5 mbar / 1.1 torr
Ultimate vacuum with gas ballast # mbar / # 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
Anschluss saugseitig small flange KF DN 16
Outlet connection small flange KF DN 16
Rated motor power 0.25 kW
Rated motor speed at 50/60 Hz 1500/1800 min-1
Protection class IP 40
Dimension L in mm 325 mm
Dimension W in mm 243 mm
Dimension H in mm 198 mm
Weight 19.8 kg
Noise level at 50 Hz, typ. 45 dBA
ATEX conformity II 3/- G IIC T3 X Internal Atm. only
NRTL certification Yes
Items supplied Pump completely mounted, ready for use, with manual.
Rated mains voltage range 1 200-230 V
Rated mains voltage range 2 100-115 V
Rated mains voltage range 3 120 V
Mains frequency 1 50-60 Hz
Mains frequency 2 50-60 Hz
Mains frequency 3 60 Hz

vac_pumpingspeedm3 für Zoom klicken

Max. pumping speed 50 Hz

vac_pumpingspeedcfm für Zoom klicken

Max. pumping speed 60 Hz

vac_pumpingcurve50 für Zoom klicken

Pump down graph 50 Hz (10 l volume)

vac_pumpingcurve60 für Zoom klicken

Pump down graph 60 Hz (10 l volume)

Downloads

Please select a plug type to obtain its operating instructions.

Equipment

This might also interest you

Application examples

Rotary_evaporators
Rotary evaporators
Vacuum_concentrators
Vacuum concentrators