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KNF N035AN.18 Oil-Free Diaphragm Pump for Laboratory Gas Transfer

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KNF
New/Used
Used
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Product description

Oil-free diaphragm pump N035AN.18 delivers 15 l/min for corrosive gases with 100 mbar abs vacuum, 4 bar pressure.

The KNF N035AN.18 is an oil-free diaphragm pump designed for efficient and maintenance-free transfer of gases and vapors, including slightly aggressive or corrosive gases. Its hermetic design minimizes leakage with a rate around 6 x 10⁻³ mbar·l/s, ensuring clean, contamination-free operation critical in molecular diagnostics and bioprocessing environments.

  • Flow capacity: 15 liters per minute
  • Final vacuum: 100 mbar absolute
  • Operating pressure: up to 4 bar gauge
  • Tube connectors: 6 mm internal diameter
  • Permissible gas and ambient temperature: +5 to +40 °C
  • Motor protection: IP 20
  • Power consumption: 100 W at 0.7 A operational current
  • Dimensions: 203 x 194 x 145 mm
  • Weight: 4 kg

Included components enhance operational safety and precision: a silencer/filter to reduce noise and protect from particulates, a pressure relief valve set at 4 bar, and fine control valves equipped with manometers on both ends for accurate monitoring. Its compact, environmentally friendly, and oil-free design makes it suitable for biotechnology workflows, synthetic biology research, and biopharmaceutical production pipelines where contamination control and reliability are paramount. Widely used in laboratory settings requiring gentler gas handling for live-cell environments, fluorescence analysis, and clinical diagnostic instrumentation.

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We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.

We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.

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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Can't find the exact configuration?

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Last updated 5 November 2026