MD 4C VARIO selectVARIO® chemistry diaphragm pump
Overview
- VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
- automatic boiling point detection and adjustment of the vacuum for short process times
- extraordinary diaphragm life for minimum operational and servicing costs
- meets high vacuum requirements for most high boiling solvents
Ultimate vacuum
1.5 mbar
Ultimate vacuum with gas ballast
3 mbar
Max. pumping speed 50 Hz
4.6 m3/h
VARIO® chemistry diaphragm pump in action
The MD 4C VARIO select pump is an excellent solution for labs working with most high boiling point solvents. The pump's three stage configuration gives it an ultimate vacuum rating of 1.5 mbar. The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run fully automated distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, the VACUU·SELECT controller continuously detects the boiling point and automatically adjusts the vacuum process as necessary. VARIO's on-demand motor speed control results in whisper-quiet operation and unparalleled length of service intervals for wear parts. Typical applications are all evaporation processes. They can be run fully automatically and with shorter process times and extra sensitivity even for challenging mixtures at the same time. The VARIO® control ensures high process reliability through prevention of boiling retardation or foaming. It detects boiling pressures automatically and self-adapts to changing process parameters at any time. This all without any need of parameter input or the use of a solvent library. Also in many other applications and in laboratory vacuum networks the VARIO® control brings significant advantages as it provides always the appropriate pumping speed. The VACUU·BUS® interface facilitates an user-friendly configuration of even complex vacuum installations.
Technical data and graphs
| Max. pumping speed 50 Hz | 4.6 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 2.7 cfm | |
| Ultimate vacuum | 1.5 mbar / 1.1 torr | |
| Ultimate vacuum with gas ballast | 3 mbar / 2.2 torr | |
| Number of heads | 4 | |
| Number of stages | 3 | |
| Vacuum controller | VACUU·SELECT | |
| 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. outlet pressure (abs.) | 1.1 bar | |
| Inlet connection | Hose nozzle DN 8-10 mm | |
| Outlet connection | Hose nozzle DN 8-10 mm | |
| Rated motor power | 0.53 kW | |
| Protection class IEC 60529 | IP 20 | |
| Dimension L in mm | 325 mm | |
| Dimension B in mm | 243 mm | |
| Dimension H in mm | 245 mm | |
| Weight | 16.8 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 43 dBA | |
| ATEX conformity | II 3/- G Ex h IIC T3 Gc X Internal Atm. only | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Rated mains voltage range 1 | 200-230 V | |
| Mains frequency 1 | 50-60 Hz | |
| Interface | Ethernet (RJ45): Modbus TCP / USB (Type A): Data transfer, software update, RS-232 (additional adapter required) |
Downloads
Equipment
-
![VACUU·SELECT user management]()
VACUU·SELECT User Management Function extension for VACUU·SELECT controller- Flexible and individual permissions
- Ensure consistent process parameters
- Customized working environment
![Silencer with hose DN 8-10mm]()
DN 8-10mm Silencer with hose 5cm![Rubber vacuum tubing, DN 8,price per meter]()
DN 8 mm, sale per meter Rubber vacuum tubing- Natural rubber + SBR
- Nominal width DN 8 mm
- Sale per meter
![Set of diaphragms and valves forMD 4C NT/VARIO / PC 3003 / PC 3004]()
MD 4C NT/VARIO / PC 3003 / PC 3004 Set of diaphragms and valves- Complete kit
- Original spare parts
- Easy assembly
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Application examples
Rotary evaporators
VARIO® chemistry diaphragm pump in action
The MD 4C VARIO select pump is an excellent solution for labs working with most high boiling point solvents. The pump's three stage configuration gives it an ultimate vacuum rating of 1.5 mbar. The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run fully automated distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, the VACUU·SELECT controller continuously detects the boiling point and automatically adjusts the vacuum process as necessary. VARIO's on-demand motor speed control results in whisper-quiet operation and unparalleled length of service intervals for wear parts. Typical applications are all evaporation processes. They can be run fully automatically and with shorter process times and extra sensitivity even for challenging mixtures at the same time. The VARIO® control ensures high process reliability through prevention of boiling retardation or foaming. It detects boiling pressures automatically and self-adapts to changing process parameters at any time. This all without any need of parameter input or the use of a solvent library. Also in many other applications and in laboratory vacuum networks the VARIO® control brings significant advantages as it provides always the appropriate pumping speed. The VACUU·BUS® interface facilitates an user-friendly configuration of even complex vacuum installations.
Technical data and graphs
Max. pumping speed 50 Hz 4.6 m3/h Select diagram Max. pumping speed 60 Hz 2.7 cfm Ultimate vacuum 1.5 mbar / 1.1 torr Ultimate vacuum with gas ballast 3 mbar / 2.2 torr Number of heads 4 Number of stages 3 Vacuum controller VACUU·SELECT 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. outlet pressure (abs.) 1.1 bar Inlet connection Hose nozzle DN 8-10 mm Outlet connection Hose nozzle DN 8-10 mm Rated motor power 0.53 kW Protection class IEC 60529 IP 20 Dimension L in mm 325 mm Dimension B in mm 243 mm Dimension H in mm 245 mm Weight 16.8 kg Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 43 dBA ATEX conformity II 3/- G Ex h IIC T3 Gc X Internal Atm. only NRTL certification No Items supplied Pump completely mounted, ready for use, with manual. Rated mains voltage range 1 200-230 V Mains frequency 1 50-60 Hz Interface Ethernet (RJ45): Modbus TCP / USB (Type A): Data transfer, software update, RS-232 (additional adapter required) 
für Zoom klicken
Max. pumping speed 50 Hz
für Zoom klicken
Pump down graph 50 Hz (10 l volume)
Downloads
MD 4C VARIO select VARIO® chemistry diaphragm pumpMD 4C VARIO select VARIO® chemistry diaphragm pumpDownload Download Download Download Download Download Download Download Download Download Download Download Download Download Download DownloadManual vacuum gauge / controllerManual PDF 17.4 MB 17.1 MB 17.5 MB 17.4 MB 17.4 MB 17.5 MB 17.4 MB 17.5 MB 17.4 MB 17.8 MB 17.5 MB 17.5 MB 17.4 MB 17.5 MB 17.5 MB 17.3 MBEquipment
-
![VACUU·SELECT user management]()
VACUU·SELECT User Management Function extension for VACUU·SELECT controller- Flexible and individual permissions
- Ensure consistent process parameters
- Customized working environment
![Silencer with hose DN 8-10mm]()
DN 8-10mm Silencer with hose 5cm![Rubber vacuum tubing, DN 8,price per meter]()
DN 8 mm, sale per meter Rubber vacuum tubing- Natural rubber + SBR
- Nominal width DN 8 mm
- Sale per meter
![Set of diaphragms and valves forMD 4C NT/VARIO / PC 3003 / PC 3004]()
MD 4C NT/VARIO / PC 3003 / PC 3004 Set of diaphragms and valves- Complete kit
- Original spare parts
- Easy assembly
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![PC 3001 VARIO select VARIO® chemistry pumping unit]()
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![MD 4C NT +AK+EK Chemistry vacuum system]()
MD 4C NT +AK+EK Chemistry vacuum system- Ultimate vacuum 1.5 mbar
- Pumping speed 3.4 m3/h
- Oilfree & chemically resistant
Application examples
Rotary evaporators
