Articleno.
20736000

MD 4 NTDiaphragm pump

Overview

  • contamination-free pumping and evacuation
  • high flow rate even near ultimate vacuum
  • whisper quiet
  • very low vibration
  • exceptionally long diaphragm life and maintenance-free drive system for low lifetime costs

Ultimate vacuum

1 mbar

Max. pumping speed 50 Hz

3.8 m3/h

On demand

Inquire

Diaphragm pump in action

These three-stage diaphragm pumps are an excellent solution for continuous, oil-free pumping of non-corrosive gases. They reach an excellent ultimate vacuum of 1 mbar. All parts in contact with pumped gases and vapors are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The new NT-series provides whisper quiet and ultra-low vibration operation, high leak tightness and improved performance. The highly flexible fabric-reinforced double diaphragm made of FKM is ideal for extended operating life. These three-stage diaphragm pumps are an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases at demanding vacuum conditions. They are especially suitable for applications in physics and analytics. The low ultimate vacuum makes these an attractive alternative to rotary vane pumps in many applications. Typical uses are as backing pump for turbomolecular drag pumps, and for degassing of viscous media.

Technical data and graphs

Max. pumping speed 50 Hz 3.8 m3/h Select diagram
Max. pumping speed 60 Hz 2.5 cfm Select diagram
Ultimate vacuum 1 mbar / 0.75 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 Silencer / G1/4"
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 328 mm
Dimension W in mm 239 mm
Dimension H in mm 198 mm
Weight 16.4 kg
Noise level at 50 Hz, typ. 45 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 manual.
Rated mains voltage range 1 230 V
Mains frequency 1 50-60 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

Fore_vacuum_for_turbomolecular_pumps
Fore vacuum for turbomolecular pumps

Diaphragm pump in action

These three-stage diaphragm pumps are an excellent solution for continuous, oil-free pumping of non-corrosive gases. They reach an excellent ultimate vacuum of 1 mbar. All parts in contact with pumped gases and vapors are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The new NT-series provides whisper quiet and ultra-low vibration operation, high leak tightness and improved performance. The highly flexible fabric-reinforced double diaphragm made of FKM is ideal for extended operating life. These three-stage diaphragm pumps are an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases at demanding vacuum conditions. They are especially suitable for applications in physics and analytics. The low ultimate vacuum makes these an attractive alternative to rotary vane pumps in many applications. Typical uses are as backing pump for turbomolecular drag pumps, and for degassing of viscous media.

Technical data and graphs

Max. pumping speed 50 Hz 3.8 m3/h Select diagram
Max. pumping speed 60 Hz 2.5 cfm Select diagram
Ultimate vacuum 1 mbar / 0.75 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 Silencer / G1/4"
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 328 mm
Dimension W in mm 239 mm
Dimension H in mm 198 mm
Weight 16.4 kg
Noise level at 50 Hz, typ. 45 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 manual.
Rated mains voltage range 1 230 V
Mains frequency 1 50-60 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

Fore_vacuum_for_turbomolecular_pumps
Fore vacuum for turbomolecular pumps