Representative Image

VACUUBRAND VARIO Chemistry Diaphragm Pump, MD 4C VARIO, Select, Three Stage, 100 to 120V / 50 to 60Hz, US Mains Cable

Plug type

Specifications

Compare models
Depth
325 mm
Dimensions (WxDxH)
243 x 325 x 245 mm
Flow rate
4.6 m³/h
Height
245 mm
No. of stages
3
Plug type
US
Type
MD 4C VARIO select
Ultimate vacuum
1.5 mbar
Ultimate vacuum with gas ballast
3 mbar
UNSPSC
40151502

Alternative in-stock items

$21,896.54

Inc. GST

Available soon

Product description

The VACUUBRAND VARIO Chemistry Diaphragm Pump, MD 4C VARIO select, three-stage, 100-120 V / 50-60 Hz, US Mains Cable is a diaphragm vacuum pump from VACUUBRAND designed for oil-free evacuation and pumping of gases or vapours. The VARIO ® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller. Its documented configuration includes electrical supply: 100-120 V, 50-60 Hz, connection: US Mains Cable, and pump design: Three-Stage.

Key Features:

  • Brand: VACUUBRAND
  • Model: MD 4C VARIO
  • Product Type: Diaphragm Vacuum Pump
  • Electrical Supply: 100-120 V, 50-60 Hz
  • Connection: US Mains Cable
  • Pump Design: Three-Stage
  • Pumping Performance: Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applications
  • Diaphragm Construction: Long-life diaphragm with PTFE sandwich construction and unstressed diaphragm support
  • Maintenance: Easy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustment
  • Noise and Vibration: Very quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industry
  • Vapour Tolerance: Superior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge
  • Surface Design: Easy to clean due to smooth exterior surfaces
  • Vacuum Control: The VARIO ® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller

The VACUUBRAND VARIO Chemistry Diaphragm Pump, MD 4C VARIO select, three-stage, 100-120 V / 50-60 Hz, US Mains Cable supports oil-free evacuation and pumping of gases or vapours where the stated configuration is required. Confirm process compatibility, wetted materials, electrical supply, connections, and included components before ordering.

Accessories

Sealing kit NT for chemistry diaphragm pumps NT

ProductForUNSPSCMfr#Part#AvailabilityPrice
MZ 2C NT40151502206968696.241 476$621.93
MD 4C NT40151502206968706.239 489$1,186.27
ME 4 NT, MZ 2 NT40151502206968609.880 902$361.64
ME 4C NT40151502206968649.880 906$361.64
MZ 2D NT40151502206968639.880 904$361.64
MV 2 NT / MD 4 NT40151502206968619.880 905$601.20
ME 8 NT40151502206968629.880 903$497.54
ME 8C NT40151502206968679.880 907$702.55

Vacuum tubings, PVC

ProductMaterialExt. ØMfr#Part#AvailabilityPrice
PVC15.9 mm206860604.714 081$177.37
PVC34.9 mm206860634.714 084$467.60
PVC38.1 mm206860654.714 085$543.61
PVC15.9 mm206860614.714 082$207.31
PVC22.3 mm206860624.714 083$274.11

Compare similar models

VARIO chemistry diaphragm pump, MD 4C VARIO select, three stage, 100-120V / 50-60Hz, US mains cable

Manufacturer P/N

20736553

Part Number

4.670 502

Manufacturer

VACUUBRAND​

Plug type

US

VARIO chemistry diaphragm pump, MD 4C VARIO select, three stage, 200-230V / 50-60Hz, CEE mains cable

Manufacturer P/N

20736550

Part Number

4.670 500

Manufacturer

VACUUBRAND​

Plug type

EU

VARIO chemistry diaphragm pump, MD 4C VARIO select, three stage, 200-230V / 50-60Hz, CH mains cable

Manufacturer P/N

20736551

Part Number

4.670 501

Manufacturer

VACUUBRAND​

Plug type

CH

Chemical diaphragm pump MD 4C VARIO® select three-stage, 200-230 V / 50-60 Hz, UK plug

Manufacturer P/N

20736552

Part Number

4.701 121

Manufacturer

VACUUBRAND​

Plug type

UK

More items to explore

Diaphragm pumps chemistry design, ME 1C

ProductPlug typeTypeMfr#Part#AvailabilityPrice
EUME 1C207211009.880 934In stock$2,748.01
UKME 1C207211029.880 936$2,748.01
CHME 1C207211019.880 935$2,748.01
USME 1C207211039.880 937$2,748.01

Diaphragm vacuum pumps, chemistry design, MD 4CRL NT

ProductTypeDepthMfr#Part#AvailabilityPrice
MD 4CRL NT325 mm207364459.880 926$20,712.57

Frequently asked questions

It is a diaphragm vacuum pump from VACUUBRAND designed for oil-free evacuation and pumping of gases or vapours. The VARIO ® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.

Insights

Explore
Burette vs Pipette: Key Differences and Which to Use

1 min read

Burette vs Pipette: Key Differences and Which to Use

This guide explains the practical difference between a burette and a pipette, two instruments that are often confused because both dispense measured volumes of liquid, but that are built for genuinely different jobs. It breaks down how a burette's stopcock and full-length graduated scale let an operator dispense a variable, watched volume and stop the instant a reaction reaches its endpoint, versus how a pipette (volumetric, graduated or micropipette) is built to transfer one known or pre-set volume in a single action. Rather than presenting the two as competing options, the piece frames them as complementary tools tied to different steps in a procedure: burettes for titration and any reaction where the target volume isn't known in advance, pipettes for sample preparation, dilutions and any step where the volume is already fixed.

Read full story
Top 5 Brands for Graduated Cylinders in 2026

1 min read

Top 5 Brands for Graduated Cylinders in 2026

This guide compares the five graduated cylinder brands most commonly used across Australian laboratories: Hirschmann Laborgeräte (DURAN® glass), Kartell (PMP plastic), ISOLAB Laborgeräte, BRAND (BLAUBRAND®) and VITLAB. Rather than treating graduated cylinders as interchangeable, it breaks down what actually separates them, Class A versus Class B accuracy tolerances, glass versus plastic construction, base stability and certification standards such as USP conformity, and explains which of these differences genuinely matter depending on the work.

Read full story
Top 5 Brands for Erlenmeyer Flasks in 2026

1 min read

Top 5 Brands for Erlenmeyer Flasks in 2026

This guide compares the five Erlenmeyer flask brands most commonly used across Australian laboratories today: DWK Life Sciences (DURAN®), ISOLAB Laborgeräte, LLG Labware, BRAND and Kartell. Rather than treating all Erlenmeyer flasks as interchangeable, it breaks down what actually separates them in practice, wall thickness consistency, thermal shock resistance, neck and closure compatibility, and material choice between borosilicate glass and polypropylene, and explains which of these differences matter for which kind of lab work.

Read full story

$21,896.54

Inc. GST