Starke Spezialisten

for gas analysis, emission measurement,
industrial processes

From sample gas pumps for analyzing process gases to emissions monitoring, the transfer of highly explosive media and the recovery of valuable gases, KNF’s solutions are used wherever it is crucial for processing media to be handled with special care.

Einsatzgebiete

Applications for KNF gas and liquid pumps:

  • Mobile/Portable gas measurement technology
  • Stationary emission measurement technology
  • Handling processing media in industrial processes
Zuverlässigkeit und Sicherheit an Schlüsselpositionen

Reliable and safe where it matters most

As a global technology leader in diaphragm pumps and systems for moving liquids and gases, KNF supports customers by drawing on more than 70 years of knowledge and expertise. This is evident through development milestones, such as corrosion-resistant diaphragm pumps for chemical and process engineering, the temperature-resistant and heated pump head for hot gases of up to 240 °C and the double diaphragm pump for transferring hazardous and valuable gases. When it comes to implementing KNF diaphragm pumps that are tailored precisely to your process and operating conditions, your specifications set the benchmark right down to the smallest detail.

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

Most recent innovations

N 87 Ex

  • Flow rate: 7.5 l/min
  • Ultimate vacuum: 140 mbar abs.
  • Operating pressure: 1.5 bar rel.
  • High chemical resistance
  • Robust design
  • Copes well with vapor and condensation
  • High level of performance in a compact size
  • Excellent price/performance ratio
  • Motor approved in accordance with ATEX/IECEx
  • High level of gas tightness: approx. 6 x 10-3 mbar x l/s
KNF N 87 Ex

N 0150 Ex

  • Flow rate: max. 200 l/min
  • Ultimate vacuum: max. 30 mbar abs.
  • Operating pressure: max. 1.0 bar rel.
  • High chemical resistance
  • Durable even with difficult operating conditions
  • High level of gas tightness: approx. 6 x 10-3 mbar l/s
  • High level of performance in a compact size
KNF N 0150 Ex

N 630 Ex

  • Flow rate: max. 68 l/min
  • Ultimate vacuum: max. 25 mbar abs.
  • Operating pressure: max. 9.0 bar rel.
  • High chemical resistance
  • Durable even with difficult operating conditions
  • High level of gas tightness: approx. 6 x 10-3 mbar x l/s
  • Flameproof motor with intrinsically safe terminal box for simple installation
  • High maximum operating pressure even in explosive environments
KNF N 630 Ex

N 630

  • Flow rate: max. 68 l/min
  • Ultimate vacuum: max. 25 mbar abs.
  • Operating pressure: max. 12.0 bar rel.
  • High chemical resistance
  • Durable even with difficult operating conditions
  • High level of gas tightness
  • Ambient temperatures of up to 60 °C possible with water cooling
  • Stable transfer rate at all pressure levels throughout process
  • Quiet operation with minimal vibration
KNF N 630

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.