MD 1 VARIO-SPVARIO®-SP diaphragm pump
Overview
- contamination-free pumping and evacuation
- high flow rate even near ultimate vacuum
- variable speed: Fast pump down at high motor speed, with reduced speeds to maintain vacuum
- very powerful and extremely compact; whisper quiet and ultra-low vibration, especially at low speed
- customized versions available
Ultimate vacuum
1 mbar
Max. pumping speed 50 Hz
1.8 m3/h
Articleno.
20696101
VARIO®-SP 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 extraordinarily silent and vibration-free, with an extended lifetime for its diaphragms.
Technical data and graphs
| Max. pumping speed 50 Hz | 1.8 m3/h | |
| Max. pumping speed 60 Hz | 1.06 cfm | |
| Ultimate vacuum | 1 mbar / 0.75 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 6 mm | |
| Outlet connection | Silencer / G1/8" | |
| 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 | 223 mm | |
| Dimension B in mm | 143 mm | |
| Dimension H in mm | 163 mm | |
| Weight | 4.1 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
Diaphragm pump MD 1 VARIO-SP, built-in version,three stage, without vacuum controller, withoutwall power supply, certification (NRTL): C/US, 24 V/=with open wires
MD 1 VARIO-SP
VARIO®-SP diaphragm pump
Technical data sheet
Data sheet
PDF
2.9 MB
2.9 MB
2.9 MB
2.9 MB
3 MB
Equipment
-
![Screw-in flange, stainless steel,NW 16 KF/A-G 1/8"]()
KF DN 16 / G1/8" Screw-in flange, stainless steel- Material stainless steel
![Set of diaphragms and valves for MD 1,MV 0.5]()
MD 1 / MV 0.5 (also VARIO) Set of diaphragms and valves- Complete kit
- Original spare parts
- Easy assembly
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Application examples
Fore vacuum for turbomolecular pumps
VARIO®-SP 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 extraordinarily silent and vibration-free, with an extended lifetime for its diaphragms.
Technical data and graphs
Max. pumping speed 50 Hz 1.8 m3/h Max. pumping speed 60 Hz 1.06 cfm Ultimate vacuum 1 mbar / 0.75 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 6 mm Outlet connection Silencer / G1/8" 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 223 mm Dimension B in mm 143 mm Dimension H in mm 163 mm Weight 4.1 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 
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Pump down graph 50 Hz (10 l volume)
Downloads
Diaphragm pump MD 1 VARIO-SP, built-in version,three stage, without vacuum controller, withoutwall power supply, certification (NRTL): C/US, 24 V/=with open wiresMD 1 VARIO-SPVARIO®-SP diaphragm pumpDownload Download Download Download DownloadTechnical data sheetData sheet PDF 2.9 MB 2.9 MB 2.9 MB 2.9 MB 3 MBEquipment
-
![Screw-in flange, stainless steel,NW 16 KF/A-G 1/8"]()
KF DN 16 / G1/8" Screw-in flange, stainless steel- Material stainless steel
![Set of diaphragms and valves for MD 1,MV 0.5]()
MD 1 / MV 0.5 (also VARIO) Set of diaphragms and valves- Complete kit
- Original spare parts
- Easy assembly
This might also interest you
-
![MD 4 NT Diaphragm pump]()
MD 4 NT Diaphragm pump- Ultimate vacuum 1 mbar
- Pumping speed 3.8 m3/h
- Oilfree
![MD 1 Diaphragm pump]()
MD 1 Diaphragm pump- Ultimate vacuum 1.5 mbar
- Pumping speed 1.2 m3/h
- Oilfree
![MD 4 VARIO select VARIO® diaphragm pump]()
Application examples
Fore vacuum for turbomolecular pumps
