MD 4 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
- excellent ultimate vacuum and TURBO·MODE for use as backing pump for turbo pumps
Ultimate vacuum
1 mbar
Max. pumping speed 50 Hz
5.7 m3/h
Cat. No.
20736353
VARIO® diaphragm pump in action
This three-stage diaphragm pump is an excellent solution for continuous, oil-free pumping of non-corrosive gases to a vacuum level as deep as 1 mbar. 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 4 VARIO select continuously adapts its motor speed to hold the desired vacuum level. That 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 external gauge head. The demand-responsive motor speed control on VARIO models further extends the already long lifetimes of diaphragms and valves.
für Zoom klicken
Technical data and graphs
| Max. pumping speed 50 Hz | 5.7 m3/h | |
| Max. pumping speed 60 Hz | 3.4 cfm | |
| Ultimate vacuum | 1 mbar / 0.75 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. back pressure (abs.) | 1.1 bar | |
| Inlet connection | small flange KF DN 16 | |
| Outlet connection | Silencer / G1/4" | |
| Rated motor power | 0.53 kW | |
| Protection class IEC 60529 | IP 20 | |
| Dimension L in mm | 325 mm | |
| Dimension B in mm | 235 mm | |
| Dimension H in mm | 245 mm | |
| Weight | 19.1 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 45 dBA | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Rated mains voltage range 1 | 100-120 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
VARIO diaphragm pump,MD 4 VARIO select, three stage,100-120V / 50-60Hz, US mains cable
MD 4 VARIO select
VARIO® diaphragm pump
Technical data sheet
Data sheet
PDF
2.4 MB
2.4 MB
2.5 MB
2.4 MB
2.5 MB
Equipment
VARIO® diaphragm pump in action
This three-stage diaphragm pump is an excellent solution for continuous, oil-free pumping of non-corrosive gases to a vacuum level as deep as 1 mbar. 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 4 VARIO select continuously adapts its motor speed to hold the desired vacuum level. That 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 external gauge head. The demand-responsive motor speed control on VARIO models further extends the already long lifetimes of diaphragms and valves.
für Zoom klicken
Technical data and graphs
| Max. pumping speed 50 Hz | 5.7 m3/h | |
| Max. pumping speed 60 Hz | 3.4 cfm | |
| Ultimate vacuum | 1 mbar / 0.75 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. back pressure (abs.) | 1.1 bar | |
| Inlet connection | small flange KF DN 16 | |
| Outlet connection | Silencer / G1/4" | |
| Rated motor power | 0.53 kW | |
| Protection class IEC 60529 | IP 20 | |
| Dimension L in mm | 325 mm | |
| Dimension B in mm | 235 mm | |
| Dimension H in mm | 245 mm | |
| Weight | 19.1 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 45 dBA | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Rated mains voltage range 1 | 100-120 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
Pump down graph 50 Hz (10 l volume)
Downloads
VARIO diaphragm pump,MD 4 VARIO select, three stage,100-120V / 50-60Hz, US mains cable
MD 4 VARIO select
VARIO® diaphragm pump
Technical data sheet
Data sheet
PDF
2.4 MB
2.4 MB
2.5 MB
2.4 MB
2.5 MB
