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Marketplace
Analytics
Brand
Vacuubrand
Supplier
Marshall Scientific
Location
Hampton - United States
Price
$9,945.00 
(ex. VAT)
This item is
for sale
State of item
new
Categories

VACUUBRAND MD 4 VARIO Select Diaphragm Pump

Marshall Scientific$9,945.00 (ex VAT)
item image

Description by the supplier

VACUUBRAND MD 4 VARIO Select Diaphragm Pump



Ultimate Vacuum

1 mbar (0.75 Torr)

Maximum Pumping Speed

3.4 CFM at 60Hz

Number of Heads/Stages

4/3



Features

- 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






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.


These three-stage diaphragm pumps are an excellent choice for continuous, contamination-free evacuation and pumping of non-aggressive gases at demanding vacuum conditions. They are especially suitable for applications requiring high volume flow in physics and analytics. The low ultimate vacuum makes these an attractive alternative to rotary vane pumps. Typical uses are as backing (roughing) pumps for turbomolecular drag pumps, for degassing of viscous media, as well as for exhaust gas analytics. Additionally, the VARIO model provides vacuum control by precise adjustment of the diaphragm pump´s motor speed to process requirements. Back diffusion of oil or even oil back flow, e.g., into a high vacuum chamber is excluded due to its oil-free operation. For equipment manufacturers customized versions are available. Depending on the application, the demand-responsive motor speed control of VARIO models further extends the long diaphragm life for which VACUUBRAND pumps are well-known. In addition, it provides an even higher pumping speed and enables precise vacuum control.


INCLUDED:

The VACUUBRAND MD 4 VARIO Select Diaphragm Pump includes:

- Power Cord

- Operator's Manual

- Manufacturer's Documentation

- 2 Year Manufacturer's Warranty

Product details
Max. pumping speed 50 Hz5.7 m 3/h
Max. pumping speed 60 Hz3.4 cfm
Ultimate vacuum1 mbar / 0.75 torr
Number of heads4
Number of stages3
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 connectionsmall flange KF DN 16
Outlet connectionSilencer / G1/4"
Rated motor power0.53 kW
Protection class IEC 60529IP 20
Dimension L in mm325 mm
Dimension B in mm235 mm
Dimension H in mm245 mm
Weight19.1 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 certificationNo
Items suppliedPump completely mounted, ready for use, with manual.
Rated mains voltage range 1100-120 V
Mains frequency 150-60 Hz
InterfaceEthernet (RJ45): Modbus TCP / USB (Type A): Data transfer, software update, RS-232 (additional adapter required)
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