Laboratory vacuum system MD 4C NT +2AK

for rotary evaporatorsmulti-stage

Overview

• Outstanding chemical resistance and high vapor tolerance
• Reliable pumping performance close to ultimate vacuum
• Good ultimate vacuum even with gas ballast engaged
• Very low noise and vibration
• Inlet and outlet separators to collect condensates

Product details
The MD 4C NT +2AK is a chemical vacuum system intended for evacuation, evaporation and pumping of gases and vapours in chemical, biological and pharmaceutical laboratories where outlet condensation of solvent vapours is not required. It is designed for demanding applications with high‑boiling solvents. Typical installations include vacuum concentrators, rotary evaporators and drying ovens. The inlet separator (AK), glass with protective coating, retains particles and liquid droplets. The outlet catchpot collects condensate, prevents backflow to the pump and contributes to the pump's quiet operation.

Key performance

• Ultimate vacuum: 1.5 mbar
• Ultimate vacuum with gas ballast: 3 mbar
• Max. pumping speed (50 Hz): 3.4 m³/h

Technical data and graphs (table)
Max. pumping speed 50 Hz : 3.4 m3/h
Max. pumping speed 60 Hz : 2.2 cfm
Ultimate vacuum : 1.5 mbar / 1.1 torr
Ultimate vacuum with gas ballast : 3 mbar / 2.2 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 8-10 mm
Outlet connection : Hose nozzle DN 8-10 mm
Rated motor power : 0.25 kW
Rated motor speed at 50/60 Hz : 1500/1800 min-1
Protection class IEC 60529 : IP 40
Dimension L x B x H : 319 x 243 x 374 mm
Weight : 16.7 kg
Noise (sound pressure level) at 50 Hz : 45 dBA
ATEX conformity : II 3/- G Ex h IIC T3 Gc X (Internal Atm. only)
NRTL certification : Yes
Items supplied : Pumping unit completely mounted, ready for use, with manual.
Rated mains voltage range : 230 V
Mains frequency : 50-60 Hz

Applications

• Evacuation and pumping of gases and vapours where condensation at the outlet is not required
• Vacuum concentrators
• Rotary evaporators
• Drying ovens

Specifications

• Model: MD 4C NT +2AK
• Product type: Chemical vacuum system (with inlet/outlet separators)
• Ultimate vacuum: 1.5 mbar (1.1 torr)
• Ultimate vacuum with gas ballast: 3 mbar (2.2 torr)
• Max. pumping speed (50 Hz): 3.4 m³/h
• Max. pumping speed (60 Hz): 2.2 cfm
• Number of heads: 4
• Number of stages: 3
• Rated motor power: 0.25 kW
• Rated speed (50/60 Hz): 1500/1800 min-1
• Protection class: IP 40
• Dimensions (L x B x H): 319 x 243 x 374 mm
• Weight: 16.7 kg
• Noise level: 45 dBA (50 Hz)
• Max. back pressure (abs.): 1.1 bar
• Connections: Hose nozzle DN 8-10 mm (inlet/outlet)
• ATEX conformity and NRTL certification
• Items supplied: Pumping unit complete, ready for use, with manual
• Rated mains voltage: 230 V; Frequency: 50-60 Hz