KNF diaphragm pumps in
instrumental analysis

Precision is the central requirement of instrumental analysis. As the long-time solutions provider for well-known manufacturers of devices for routine and high-end analysis, we are familiar with this requirement.

For dependable
results

Precision is the central requirement of instrumental analysis. Valid measurement results are needed for important decisions, when it comes to nothing less than the protection of people and the environment. As the long-time solutions provider for well-known manufacturers of devices for routine and high-end analysis, we are familiar with this requirement.

We bring our entire expertise to the table to deliver you a technically suitable pump, and additionally create advantages that provide you with added value. Along the way, we take into account the ever-growing market demand for faster analytics, ease of operations and cost efficiency.

Applications for
KNF gas and liquid
pumps:

  • Sample preparation
  • HPLC/GC
  • Mass spectrometry with all detector types
  • Elemental analysis
  • TOC
  • Calorimetry
  • Titration
  • Dissolution
  • Electrophoresis

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KNF – your partner for custom-fit solutions that move you forward

Most recent innovations

N 96

  • Flow rate: max. 8.5 l/min
  • Ultimate vacuum: max. 130 mbar abs.
  • Operating pressure: max. 2.5 bar rel.
  • Copes well with vapor and condensation
  • The pump can start against the entire pressure and vacuum
  • Brushless DC motor for custom-fit rotational speed control
  • Low operating costs and reduced heat emissions from the pump thanks to efficient motor
  • Extended temperature range for ambient temperatures up to 50 °C and media temperatures up to 70 °C
  • High level of gas tightness: 6 x 10-3 mbar x l/s according to type examination
KNF N 96

NMP 850 HP

  • Flow rate: max. 16 l/min
  • Ultimate vacuum: 200 mbar abs.
  • Operating pressure: 2.5 bar rel.
  • Long product life
  • High pneumatic performance
  • Compact size
  • Can operate in any installed position
  • High condensate resistance
  • One pump for vacuum and pressure application
KNF NMP 850 HP

FP 150

  • Flow rate: max. 1.5 l/min
  • Suction height: max. 2.7 mH2O
  • Pressure head: 20 mH2O
  • Low pulsation
  • Excellent linearity
  • Self-priming and can run dry
  • Gentle conveying of sensitive media
  • Long lifetime, no maintenance
  • Able to transfer aggressive media
  • IP 65
KNF FP 150

NPK 06

  • Flow rate: 8 l/min
  • Ultimate vacuum: 250 mbar abs.
  • Operating pressure: 5.5 bar rel.
  • High pressure
  • Excellent size to performance ratio
  • Low noise and vibration
  • Long serive life and maintenance-free
  • High chemical resistance
  • Can be installed in any position
KNF NPK 06

NPK 012

  • Flow rate: max. 13.5 l/min
  • Ultimate vacuum: max. 140 mbar abs.
  • Operating pressure: 5.0 bar rel.
  • High level of performance in a compact size and light-weight
  • Brushless DC motor for custom-fit rotational speed control
  • High pressure up to 5 bar rel./72.5 psig
  • The pump can start against the entire pressure and vacuum range without discharging
  • Robust design
  • Excellent price/performance ratio

KNF modular system

How we collaborate to optimize your pump

Every application is different and some are one of a kind. Our modular system is designed to give you a high degree of flexibility, speed and reliability. You can be sure that every gas and liquid pump supplied by KNF will exactly meet your requirements, no matter how complex or unusual these might be. This includes a broad range of accessories. We work closely with you to design customized project pumps that give you a competitive edge in your target market. From its configuration to its testing conditions and packaging as well as customized warehouse and logistics concepts – your project pump is tailored to your particular needs.

Series models – the first step to customized pumps

KNF offers a range of 70 series models designed for handling gases and liquids. The performances of these are described in our data sheets.

The KNF modular system for creating customized pumps

It is easy to tailor every series model to meet application-specific requirements by selecting and combining a variety of options. These range from the material used to make the pump components that come into contact with the media, to the drive and the mechanical elements such as the circuit points and connections. The configurations created by the KNF modular system are based to tried and tested individual components, meaning that developing customized pumps is quick and inexpensive.

Project pumps – precisely designed for the application

We support your development project by providing you with sample pumps quickly and easily. In consultation with you, our employees from the sales, engineering, and product management divisions determine the modifications to be made to the product’s standard technical parameters.