MD 1C VARIO-SPVARIO®-SP chemistry diaphragm pump
Overview
- contamination-free pumping and evacuation
- high flow rate even near ultimate vacuum
- VARIO®-SP = variable speed: Fast pump down at high motor speed, maintain vacuum with reduced motor speed
- very powerful and extremely compact; whisper quiet and ultra-low vibration, especially at low speed
- MD 1C VARIO-SP in chemistry design, with gas ballast valve and outstanding chemical resistance and superior vapor tolerance
Ultimate vacuum
2 mbar
Ultimate vacuum with gas ballast
4 mbar
Max. pumping speed 50 Hz
1.8 m3/h
VARIO®-SP chemistry diaphragm pump in action
The three-stage MD 1 VARIO-SP diaphragm pump with its variable speed drive system attains significantly higher pumping speed and a better ultimate vacuum than the corresponding fixed speed pump. The brushless 24V DC motor (maintenance-free) enables easy integration of the pump into other equipment and operation independent of line voltage. The pump is particularly silent and vibration-free, and has an outstanding lifetime of its diaphragms and valves. For exceptional chemical resistance of the pump´s internal flowpath it is also available as a chemistry design version (MD 1C VARIO-SP). The MD 1 VARIO-SP is an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases. The motor speed is either fixed or can be adjusted externally via electronic control signals for adaption to process requirements. For chemistry applications all major parts of the chemistry design pump MD 1C VARIO-SP in contact with pumped media are made of chemically resistant fluoroplastics. Both pump types are extremely compact and mountable in any position and are therefore the ideal built-in or system pump. Customized versions of these pump types are available on request.
Technical data and graphs
| Max. pumping speed 50 Hz | 1.8 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 1.0 cfm | |
| Ultimate vacuum | 2 mbar / 1.5 torr | |
| Ultimate vacuum with gas ballast | 4 mbar / 3 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 | |
| Inlet connection | Hose nozzle DN 8-10 mm | |
| Outlet connection | Hose nozzle DN 8 mm | |
| Rated motor power | 0.064 kW | |
| Minimum motor speed VARIO in min-1 | 200 min-1 | |
| Maximum motor speed VARIO in min-1 | 2400 min-1 | |
| Protection class IEC 60529 | IP 20 | |
| Dimension L in mm | 235 mm | |
| Dimension B in mm | 143 mm | |
| Dimension H in mm | 175 mm | |
| Weight | 4.2 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 37 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 2 m cable without plug and with manual. | |
| Rated mains voltage range 1 | 24 V | |
| Mains frequency 1 | DC |
Downloads
Equipment
-
![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
This might also interest you
-
![PC 3001 VARIO select VARIO® chemistry pumping unit]()
PC 3001 VARIO select VARIO® chemistry pumping unit- Ultimate vacuum 2.0 mbar
- Pumping speed 2 m3/h
- Oilfree & chemically resistant
![Chemistry diaphragm pump MD 1C]()
MD 1C Chemistry diaphragm pump- Ultimate vacuum 2 mbar
- Pumping speed 1.3 m3/h
- Oilfree & chemically resistant
![MD 4C NT Chemistry diaphragm pump]()
MD 4C NT Chemistry diaphragm pump- Ultimate vacuum 1.5 mbar
- Pumping speed 3.4 m3/h
- Oilfree & chemically resistant
![MD 4C VARIO select VARIO® chemistry diaphragm pump]()
MD 4C VARIO select VARIO® chemistry diaphragm pump- Ultimate vacuum 1.5 mbar
- Pumping speed 4.6 m3/h
- Oilfree & chemically resistant
![MD 4C NT +2AK Chemistry vacuum system]()
MD 4C NT +2AK Chemistry vacuum system- Ultimate vacuum 1.5 mbar
- Pumping speed 3.4 m3/h
- Oilfree & chemically resistant
![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
Fore vacuum for turbomolecular pumps
VARIO®-SP chemistry diaphragm pump in action
The three-stage MD 1 VARIO-SP diaphragm pump with its variable speed drive system attains significantly higher pumping speed and a better ultimate vacuum than the corresponding fixed speed pump. The brushless 24V DC motor (maintenance-free) enables easy integration of the pump into other equipment and operation independent of line voltage. The pump is particularly silent and vibration-free, and has an outstanding lifetime of its diaphragms and valves. For exceptional chemical resistance of the pump´s internal flowpath it is also available as a chemistry design version (MD 1C VARIO-SP). The MD 1 VARIO-SP is an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases. The motor speed is either fixed or can be adjusted externally via electronic control signals for adaption to process requirements. For chemistry applications all major parts of the chemistry design pump MD 1C VARIO-SP in contact with pumped media are made of chemically resistant fluoroplastics. Both pump types are extremely compact and mountable in any position and are therefore the ideal built-in or system pump. Customized versions of these pump types are available on request.
Technical data and graphs
Max. pumping speed 50 Hz 1.8 m3/h Select diagram Max. pumping speed 60 Hz 1.0 cfm Ultimate vacuum 2 mbar / 1.5 torr Ultimate vacuum with gas ballast 4 mbar / 3 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 Inlet connection Hose nozzle DN 8-10 mm Outlet connection Hose nozzle DN 8 mm Rated motor power 0.064 kW Minimum motor speed VARIO in min-1 200 min-1 Maximum motor speed VARIO in min-1 2400 min-1 Protection class IEC 60529 IP 20 Dimension L in mm 235 mm Dimension B in mm 143 mm Dimension H in mm 175 mm Weight 4.2 kg Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 37 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 2 m cable without plug and with manual. Rated mains voltage range 1 24 V Mains frequency 1 DC 
für Zoom klicken
Max. pumping speed 50 Hz
für Zoom klicken
Pump down graph 50 Hz (10 l volume)
Downloads
Chemistry diaphragm pump MD 1C VARIO-SP,built-in version, three stage, withoutvacuum controller, without wall power supply,certification (NRTL): C/US 24 V/=with open wiresMD 1C VARIO-SP VARIO®-SP chemistry diaphragm pumpEquipment
-
![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
This might also interest you
-
![PC 3001 VARIO select VARIO® chemistry pumping unit]()
PC 3001 VARIO select VARIO® chemistry pumping unit- Ultimate vacuum 2.0 mbar
- Pumping speed 2 m3/h
- Oilfree & chemically resistant
![Chemistry diaphragm pump MD 1C]()
MD 1C Chemistry diaphragm pump- Ultimate vacuum 2 mbar
- Pumping speed 1.3 m3/h
- Oilfree & chemically resistant
![MD 4C NT Chemistry diaphragm pump]()
MD 4C NT Chemistry diaphragm pump- Ultimate vacuum 1.5 mbar
- Pumping speed 3.4 m3/h
- Oilfree & chemically resistant
![MD 4C VARIO select VARIO® chemistry diaphragm pump]()
MD 4C VARIO select VARIO® chemistry diaphragm pump- Ultimate vacuum 1.5 mbar
- Pumping speed 4.6 m3/h
- Oilfree & chemically resistant
![MD 4C NT +2AK Chemistry vacuum system]()
MD 4C NT +2AK Chemistry vacuum system- Ultimate vacuum 1.5 mbar
- Pumping speed 3.4 m3/h
- Oilfree & chemically resistant
![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
Fore vacuum for turbomolecular pumps
