These chemistry vacuum systems can be used in a wide range of applications for evacuating or moving gases and vapours between containers in chemistry and physics laboratories, e.g. as an alternative to water jet pumps and rotary vane pumps. Compact construction, very quiet running, long service life; diaphragm and valves are very easy to replace. Oil-free vacuum.

• Includes chemistry diaphragm pump with high chemical resistance (parts in contact with media are made from PTFE compounds and similar)
• High pump volume capacity even at low pressures
• Standard gas ballast valve for working with condensates
• Solvent recovery almost 100% with exhaust waste vapour condenser
• Simple manual control

MD 4C NT:
Three-stage chemistry design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapours and meet even challenging requirements. The three-stage design provides the advantageous combination of high pumping speed and very low ultimate vacuum. All parts of the MD 4C NT in contact with pumped media are made of chemically resistant fluoroplastics. Well proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Due to the gas ballast valve and its very good ultimate vacuum (even with gas ballast) the MD 4C NT is also suitable for pumping condensable vapours of high boiling solvents. The NT-series features further improved performance data, easy service and superior vapour tolerance.

Model MD 4C NT + AK +EK
Comprising of an MD 4C NT chemistry diaphragm pump, mounted on pump support, suction-side separator (AK) as particle protection and for collecting liquid droplets, and insulated exhaust waste vapour condenser (EK) for effective recovery of solvents to protect the environment and for economical recycling.

Model MD 4C NT + AK SYNCHRO + EK
This chemistry vacuum system enables two vacuum systems to be operated simultaneously by a single vacuum pump. Comprising of a chemistry diaphragm pump, MD 4C, mounted on pump support, suction-side separator (AK) as particle protection and to collect liquid droplets. With pressure-side, insulated exhaust waste vapour condenser (EK) for effective recovery of solvents to protect the environment and for economical recycling. Includes dual-manual control and non return valves to prevent processes from interfering with each other.

Model MD 4CRL NT:
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.

Model MD 4C NT + 2AK:
This chemistry vacuum system has a wide range of applications like evacuation, evaporation and pumping of gases and vapours in chemical, biological and pharmaceutical laboratories that do not require condensation of solvent vapours at the outlet. This system is well proven for high vacuum requirements with high boiling solvents. Typical applications are vacuum concentrators, rotary evaporators and drying ovens. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The catchpot at the outlet collects condensate, avoids condensate backflow towards the pump and reinforces the whisper-quiet operation of the pump.
MD 4C NT + AK + EK-Peltronic:
This system is ideal for high vacuum requirements with high boiling solvents. Typical applications are rotary evaporators and drying ovens. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The included emission Peltronic® emission condenser performs condensation of solvent vapours without external coolant such as water or dry ice. It works electronically and uses Peltier elements as cooling system. All wetted parts are highly chemically resistant.