Vacuum pumps

A diaphragm pump runs oil-free, needs little maintenance and suits filtration, rotary evaporation and drying ovens, such as the diaphragm laboratory pump; for evaporators, see rotary evaporators. A rotary vane pump reaches a deeper vacuum, needed for freeze-drying or vacuum distillation, but its oil must be checked and changed. A water jet pump is simple and cheap to buy, as with the water jet pump, PP, but uses a lot of water and its vacuum depends on water pressure. Compare the ultimate vacuum on each product page. Questions? Ask sales@luminixhealth.com.

The ultimate vacuum, in mbar, is the lowest pressure a pump reaches; the pumping speed, in l/min or m³/h, is how fast it gets there. Filtration needs only a moderate vacuum, while drying, distilling high-boiling solvents and freeze-drying need a deeper one. Larger volumes, such as a big desiccator or a long tubing line, need more pumping speed to reach the target in reasonable time. Compare both values on the product page with what your method or instrument manual requires. Controllers, traps and hoses are in vacuum and pump accessories. Send us your application: sales@luminixhealth.com.

Yes, when you pump aggressive vapours, such as acids, chlorinated solvents or other corrosive gases, for example from a rotary evaporator or a vacuum oven. Chemically resistant pumps have the parts that touch the gas, such as diaphragm, valves and head, made of PTFE, PVDF or similar materials; the product page lists the wetted materials, as with the double diaphragm pump, PP, PTFE. Even with a resistant pump, a cold trap before the inlet condenses vapours, protects the pump and keeps solvents out of the air. Traps are in vacuum and pump accessories. Questions? Ask sales@luminixhealth.com.

A cold trap condenses solvent vapours before they reach the pump, which protects the pump and keeps solvents out of the lab air and exhaust. A vacuum controller sets and holds a defined pressure, so evaporation and drying run reproducibly and solvents do not bump. Vacuum tubing must have thick enough walls not to collapse and an inner diameter that fits the hose barbs; too narrow a tube slows pumping down. Traps and controllers are in vacuum and pump accessories; hoses in tubing, hoses and fittings. Send us your set-up and we will complete the list: sales@luminixhealth.com.

A laboratory vacuum pump lowers pressure for filtration or evaporation. A diaphragm pump tolerates solvent vapour better than an oil-sealed rotary vane pump, and it reaches a milder vacuum. The ultimate vacuum and the flow, and whether the wetted path survives the solvent, are the choices.

A vacuum pump lowers the pressure above a liquid so it boils at a lower temperature. That is the point of a rotary evaporator: solvent leaves a sample without cooking it. A diaphragm pump or a rotary-vane pump is chosen by the vacuum it reaches and by whether solvent vapour will destroy it. A peristaltic pump moves liquid by squeezing a tube, so the liquid touches only the tube. A barrel pump transfers a larger volume from a drum. The glassware on the evaporator is indexed under ISO laboratory glassware. Solvent identity is on PubChem.

This shelf belongs to Pumps, vacuum & evaporation, inside Lab instruments. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Rotary evaporators, Peristaltic & dosing pumps, Vacuum & pump accessories, Drum, barrel & transfer pumps and Pumps (other) & accessories. The category above this shelf is Pumps, vacuum & evaporation.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU, usually within 2 to 5 working days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

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