Pumps and valves
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Filtration processes separate particles from fluids to ensure their purity and quality. In contrast to simple gravimetric filtration, vacuum pumps optimise filtration by creating a pressure differential that moves the fluid through the filter more efficiently.
The efficiency of vacuum filtration can be affected by a number of different factors, including the porosity of the filter, the viscosity of the liquid to be filtered and the type of particle to be removed. When choosing a vacuum pump, it is important to consider the volume of your flask and the number of filtration units. A vacuum that is too weak will cause the process to take more time, while a vacuum that is too strong can lead to the filter tearing or collapsing.
The KNF LABOPORT® diaphragm vacuum pumps offer all the key advantages in terms of handling and functionality that laboratory personnel really need:
Both KNF LABOPORT® diaphragm vacuum pumps are chemical-resistant and have a high vapour compatibility. They offer an environmentally friendly, 100% oil-free transfer and thereby pure transferring, evacuation and compression of gases. The PTFE-coated diaphragm is ideal even for aggressive or corrosive gases and vapours.
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ILM Guide 2026/27