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KNF LABOPORT N 842.3 FT.18 Chemical-Resistant Diaphragm Vacuum Pump

From€2,918excl. VAT

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Pump pressure max. bar
2
Pump pressure max. lt/min
34
Miscellaneous
IP 44
Absorption
245
Weight kg
13.4
All 8 specifications
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Specifications 8

Brands
KNF
New/Used
New
Pump pressure max. bar
2
Pump pressure max. lt/min
34
Miscellaneous
IP 44
Absorption
245
Weight kg
13.4
Power supply
230V; 50Hz

Product description

Oil-free diaphragm vacuum pump with PTFE components, ideal for chemical labs and aggressive vapours.

The KNF LABOPORT N 842.3 FT.18 is a robust, oil-free diaphragm vacuum pump specifically engineered for laboratory environments requiring high chemical resistance and contamination-free operation. Utilizing advanced KNF membrane technology and corrosion-resistant materials such as PTFE pump heads, PTFE-coated diaphragms, and FFPM valves, this pump maintains stable vacuum performance essential for biotechnology and chemical research applications involving aggressive gases and vapours.

Key technical features include:

  • 100% oil-free membrane technology, ensuring no risk of sample contamination critical to molecular diagnostics and bioprocessing workflows
  • High chemical resistance to corrosive gases, making it optimal for biopharmaceutical production pipelines and synthetic biology research
  • Compact and quiet design suited for benchtop lab setups in pharmaceutical and analytical chemistry labs
  • Maximum flow rate approximately 34 L/min and a final vacuum of around 2 mbar (absolute), supporting applications such as vacuum filtration, rotary evaporation, degassing solutions, and dehydration under controlled conditions
  • Operating temperature range from 5 to 40 °C enables stable performance across typical laboratory environments
  • Low maintenance requirements combined with a long service life reduce downtime in demanding research settings

This vacuum pump is widely adopted in chemical, pharmaceutical, and biotechnological laboratories for applications including vacuum filtration, rotavapor-assisted solvent removal, and vacuum extraction of chemical vapours. Its reliable, oil-free operation and chemical-resistant construction make it an essential instrument for *live-cell imaging sample preparation*, *molecular cloning workflows*, and *biomanufacturing process optimization*.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 6 November 2026