Diaphragm pump ME 4R NT

Diaphragm pump ME 4R NT
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ME 4R NT

ME 4R NT

VACUUBRAND20731100ca. 290 mmca. 239 mmca. 11.5 kg

This one-stage diaphragm pump works as a vacuum generator and as well as a compressor. All parts in contact with pumped media are made of aluminum and selected plastics (PTFE diaphragms and valves). They enable a wide range of applications for non-corrosive gases. The inlet and outlet connections of the ME 4R NT are equipped with regulator valves for vacuum and overpressure, respectively. Both the compression pressure and vacuum level can be adjusted. Inlet vacuum level and outlet pressure are indicated by manometers.

Performance features

  • contamination-free pumping, evacuation and compression
  • high flow rate even near ultimate vacuum
  • adjustment of outlet pressure and vacuum level with regulator valves
  • very low vibration
  • exceptionally long diaphragm life and maintenance-free drive system for low lifetime costs

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Technical data

Unit Converter
Technical dataUnit ME 4R NT
Vacuum controllerManometer
Number of heads / stages2 / 1
Max. pumping speed at 50/60 Hzm3/h3.8 / 4.2
Max. pumping speed at 50/60 Hzcfm2.2 / 2.5
Ultimate vacuum (abs.)mbar/torr100 / 75
Ambient temperature range (operation)°C10 - 40
Ambient temperature range (storage)°C-10 - 60
Max. back pressure (abs.)bar4
Inlet connectionHose nozzle DN 8-10 mm
Outlet connectionHose nozzle DN 8-10 mm
Rated motor powerkW0.18
Rated motor speed at 50/60 Hzmin-11500/1800
Degree of protectionIP 40
Dimensions (L x W x H)mm243 x 239 x 290
Weightkg11.5
Noise level at 50 Hz, typ.dBA45
NRTL certificationCanada and the USA
Items suppliedPump completely mounted, ready for use, with manual.
AccessoriesRubber vacuum tubing DN 8 mm (20686001)

ME 4R NT - Pumping speed graph at 50 Hz

ME 4R NT - Pumping speed graph at 50 Hz

ME 4R NT - Pump down graph at 50 Hz (10 l volume)

ME 4R NT - Pump down graph at 50 Hz
(10 l volume)

ME 4R NT - Pumping speed graph at 60 Hz

ME 4R NT - Pumping speed graph at 60 Hz

ME 4R NT - Pump down graph at 60 Hz (10 l volume)

ME 4R NT - Pump down graph at 60 Hz
(10 l volume)

ME 4R NT - Dimension sheet

ME 4R NT - Dimension sheet

-Technical data are subject to change without notice-

Ordering data

Product nameMains voltage and frequencyPlug* Order no.
ME 4R NT 230 V~ 50-60 Hz
CEE 20731100
230 V~ 50-60 Hz
UK, IN 20731102
100-115 V~ 50-60 Hz
120 V~ 60 Hz
US 20731103

* As part of the implementation process of our new ERP system in 2018 our catalog numbers were extended to 8 digits in length by adding the digits “2” or “20” to the beginning of the old catalog numbers.

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Examples of use for this vacuum pump