MD 12 NT VARIO selectVARIO® diaphragm pump
Overview
- VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
- extraordinary diaphragm life for minimum operational and servicing costs
- contamination-free pumping and evacuation
- high pumping speed and excellent ultimate vacuum and TURBO·MODE for use as backing pump for turbo pumps
Ultimate vacuum
1.5 mbar
Max. pumping speed 50 Hz
13.4 m3/h
VARIO® diaphragm pump in action
This three-stage diaphragm pump is an powerful solution for continuous, oil-free pumping of non-corrosive gases to a vacuum level as deep as 1.5 mbar. With its high pumping speed, this pump is an excellent option for higher gas load applications or rapid pump down of vacuum chambers. All wetted parts are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The MD 12 NT VARIO select automatically adapts its motor speed to hold the desired vacuum level. That also means the pump is whisper-quiet and generates ultra-low vibrations, and has high leak tightness. The highly flexible fabric-reinforced double FKM diaphragm is ideal for extended operating life. The VARIO design includes the variable speed pump and the VACUU·SELECT vacuum controller with an external gauge head. The demand-responsive motor speed control on VARIO models further extends the already long lifetimes of diaphragms and valves. And oil-free operation means that there is no risk of contamination from backstreaming.
Technical data and graphs
| Max. pumping speed 50 Hz | 13.4 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 7.9 cfm | Select diagram |
| Ultimate vacuum | 1.5 mbar / 1.1 torr | |
| Number of heads | 8 | |
| 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. outlet pressure (abs.) | 1.1 bar | |
| Inlet connection | small flange KF DN 25 | |
| Outlet connection | G1/2" | |
| Rated motor power | 0.53 kW | |
| Protection class IEC 60529 | IP 40 | |
| Dimension L in mm | 552 mm | |
| Dimension B in mm | 260 mm | |
| Dimension H in mm | 450 mm | |
| Weight | 31.6 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 50 dBA | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, silencer, 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) |
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Max. pumping speed 50 Hz
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Max. pumping speed 60 Hz
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Pump down graph 50 Hz (100 l volume)
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Pump down graph 60 Hz (100 l volume)
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
![Clamping ring, aluminum, KF DN 20/25]()
KF DN 20/25 Clamping ring for small flange- Quick link
- Nominal width KF DN 20/25
- Material Aluminum
![External centring ring, PBT,sealing ring FPM, KF DN 20/25]()
KF DN 20/25 External centring ring for small flange- Nominal width KF DN 20/25
- Material PBT
- Material sealing FKM
![PVC tubing with spiral, KF DN 25/1000 mm]()
KF DN 25, 1000 mm Vacuum tubing PVC with internal stainless steel spiral, with small flanges- PVC with stainless steel spiral
- Nominal width KF DN 25 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![Small flange with hose nozzleKF DN 25/SW10, PP]()
KF DN 25 / DN 10 mm Small flange with hose nozzle- Hose shaft
- Nominal width KF DN 25
- Material PP
![Rubber vacuum tubing DN 10,price per meter]()
DN 10 mm, sale per meter Rubber vacuum tubing- Natural rubber + SBR
- Nominal width DN 10 mm
- Sale per meter
![Air admittance valve VB M-B KF DN16 /G1/4 with hose nipple G1/4" - 6/10 mm,VACUU·BUS, certification (NRTL): C/US]()
VB M-B Air admittance valve- Electromagnetic solenoid valve
- High prevention against wear
- Leak rate 1 x 10-3 min l/s
![Set of diaphragms and valvesfor MV 10, MD 12]()
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VARIO® diaphragm pump in action
This three-stage diaphragm pump is an powerful solution for continuous, oil-free pumping of non-corrosive gases to a vacuum level as deep as 1.5 mbar. With its high pumping speed, this pump is an excellent option for higher gas load applications or rapid pump down of vacuum chambers. All wetted parts are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The MD 12 NT VARIO select automatically adapts its motor speed to hold the desired vacuum level. That also means the pump is whisper-quiet and generates ultra-low vibrations, and has high leak tightness. The highly flexible fabric-reinforced double FKM diaphragm is ideal for extended operating life. The VARIO design includes the variable speed pump and the VACUU·SELECT vacuum controller with an external gauge head. The demand-responsive motor speed control on VARIO models further extends the already long lifetimes of diaphragms and valves. And oil-free operation means that there is no risk of contamination from backstreaming.
Technical data and graphs
Max. pumping speed 50 Hz 13.4 m3/h Select diagram Max. pumping speed 60 Hz 7.9 cfm Select diagram Ultimate vacuum 1.5 mbar / 1.1 torr Number of heads 8 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. outlet pressure (abs.) 1.1 bar Inlet connection small flange KF DN 25 Outlet connection G1/2" Rated motor power 0.53 kW Protection class IEC 60529 IP 40 Dimension L in mm 552 mm Dimension B in mm 260 mm Dimension H in mm 450 mm Weight 31.6 kg Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 50 dBA NRTL certification No Items supplied Pump completely mounted, ready for use, silencer, 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
Max. pumping speed 60 Hz
für Zoom klicken
Pump down graph 50 Hz (100 l volume)
für Zoom klicken
Pump down graph 60 Hz (100 l volume)
Downloads
MD 12 NT VARIO select VARIO® diaphragm pumpMD 12 NT VARIO select VARIO® 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
![Clamping ring, aluminum, KF DN 20/25]()
KF DN 20/25 Clamping ring for small flange- Quick link
- Nominal width KF DN 20/25
- Material Aluminum
![External centring ring, PBT,sealing ring FPM, KF DN 20/25]()
KF DN 20/25 External centring ring for small flange- Nominal width KF DN 20/25
- Material PBT
- Material sealing FKM
![PVC tubing with spiral, KF DN 25/1000 mm]()
KF DN 25, 1000 mm Vacuum tubing PVC with internal stainless steel spiral, with small flanges- PVC with stainless steel spiral
- Nominal width KF DN 25 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![Small flange with hose nozzleKF DN 25/SW10, PP]()
KF DN 25 / DN 10 mm Small flange with hose nozzle- Hose shaft
- Nominal width KF DN 25
- Material PP
![Rubber vacuum tubing DN 10,price per meter]()
DN 10 mm, sale per meter Rubber vacuum tubing- Natural rubber + SBR
- Nominal width DN 10 mm
- Sale per meter
![Air admittance valve VB M-B KF DN16 /G1/4 with hose nipple G1/4" - 6/10 mm,VACUU·BUS, certification (NRTL): C/US]()
VB M-B Air admittance valve- Electromagnetic solenoid valve
- High prevention against wear
- Leak rate 1 x 10-3 min l/s
![Set of diaphragms and valvesfor MV 10, MD 12]()
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
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![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]()
