diaphragm vacuum pump / oil-free / three-stage / chemical-resistant
MD 4CRL NT

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diaphragm vacuum pump / oil-free / three-stage / chemical-resistant diaphragm vacuum pump / oil-free / three-stage / chemical-resistant - MD 4CRL NT
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Characteristics

  • Technology:

    diaphragm

  • Lubrication:

    oil-free

  • Number of stages:

    three-stage

  • Other characteristics:

    chemical-resistant, stainless steel

  • Applications:

    for laboratories, for medical applications, for the chemical industry, chemical process, for pharmaceutical applications, for gas, for the plastics industry

  • Flow rate:

    3.4 m³/h, 3.8 m³/h (120.07 ft³/h)

  • Ultimate vacuum:

    1.5 mbar (0.02 psi)

Description

Description
For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The three-stage construction provides the advantageous combination of high pumping speed and very low ultimate vacuum. All major parts of the MD 4CRL NT in contact with pumped media are made of chemically resistant fluoroplastics or a special, highly corrosion-resistant stainless steel. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s.

Performance features
outstanding chemical resistance
exceptionally high performance even close to the very low ultimate vacuum
integral leakage rate 0.001 mbar l/s verified at every single pump
whisper quiet and very low vibration
long diaphragm life, maintenance-free drive system

Technical data

Number of heads / stages4 / 3
Max. pumping speed at 50/60 Hzm3/h3.4 / 3.8
Max. pumping speed at 50/60 Hzcfm2.0 / 2.2
Ultimate vacuum (abs.)mbar/torr1.5 / 1.1
Integral leakage ratembar l/s0.001
Ambient temperature range (operation)°C10 - 40
Ambient temperature range (storage)°C-10 - 60
Max. back pressure (abs.)bar1.1
Inlet connectionSmall flange KF DN 16
Outlet connectionSmall flange KF DN 16
Rated motor powerkW0.25
Rated motor speed at 50/60 Hzmin-11500/1800
Degree of protectionIP 40
Dimensions (L x W x H)mm325 x 243 x 198
Weightkg19.8
Noise level at 50 Hz, typ.dBA45

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