VARIO® diaphragm pump MV 2 NT VARIO

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VACUUBRAND20738100ca. 245 mmca. 235 mmca. 18.6 kg

Four-stage diaphragm pumps are an excellent solution for continuous, oil-free pumping of gases when the need is to reach fractional millibar ultimate vacuum. All parts in contact with pumped vapors or gases are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of non-corrosive applications. The NT series pumps provide whisper quiet and ultra-low vibration operation, high leak-tightness and improved vacuum. The highly flexible, fabric-reinforced double diaphragm made of FKM offers extended operating life. The VARIO® version automatically adjusts the vacuum level to optimize the process conditions by continuously adapting the motor speed. The VARIO® system includes the VARIO® pump and the CVC 3000 vacuum controller with external gauge head. The demand-responsive motor speed control results in unsurpassed vacuum performance as well as extended lifetimes for service parts like diaphragms.

Performance features

  • contamination-free pumping and evacuation
  • high flow rate even near ultimate vacuum
  • VARIO® version for self-regulating vacuum optimization throughout the process
  • CVC 3000 controller on VARIO® version offers easy operation with clear text menus
  • excellent ultimate vacuum, and even better ultimate vacuum with VARIO® version in TURBO·MODE for use as backing pump for turbo pumps


Technical data

Unit Converter
Technical dataUnit MV 2 NT VARIO
Vacuum controllerCVC 3000
Number of heads / stages4 / 4
Max. pumping speedm3/h3.3
Max. pumping speedcfm1.9
Ultimate vacuum (abs.)mbar/torr0.3 / 0.2
Ambient temperature range (operation)°C10 - 40
Ambient temperature range (storage)°C-10 - 60
Max. back pressure (abs.)bar1.1
Inlet connectionSmall flange KF DN 16
Outlet connectionSilencer / G1/4"
Rated motor powerkW0.53
Motor speed rangemin-130 - 2400
Degree of protectionIP 20
Dimensions (L x W x H)mm325 x 235 x 245
Noise level at 50 Hz, typ.dBA45
ATEX conformity (only 230V)II 3/- G IIC T3 X Internal Atm. only
Items suppliedPump completely mounted, ready for use, with manual.
AccessoriesStainless steel tubing KF DN 16 (1000 mm: 20673336)
Vent valve VB M-B (20674217)

MV 2 NT VARIO - Pumping speed graph

MV 2 NT VARIO - Pumping speed graph

MV 2 NT VARIO - Pump down graph (10 l volume)

MV 2 NT VARIO - Pump down graph
(10 l volume)

MV 2 NT VARIO - Dimension sheet

MV 2 NT VARIO - Dimension sheet

-Technical data are subject to change without notice-

Ordering data

Product nameMains voltage and frequencyPlug* Order no.
MV 2 NT VARIO 200-230 V~ 50-60 Hz
CEE 20738100
200-230 V~ 50-60 Hz
CH, CN 20738101
100-120 V~ 50-60 Hz
US 20738103

* 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.

Product comparison


Diaphragm pump

Diaphragm pump MV 2 NT
-0.5 -2.2 2.4 --✓-------

VARIO® diaphragm pump

VARIO® diaphragm pump MV 2 VARIO select
-0.3 -3.3 3.3--✓-----✓✓

Diaphragm pump
MV 10 NT

Diaphragm pump MV 10 NT
-0.5 -10.4 11.6 --✓-------

VARIO® diaphragm pump

VARIO® diaphragm pump MV 10 VARIO select
-0.3 -14.0 14.0--✓-----✓✓

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