From diagnosis to treatment: Expertise for Life

We are aware of the responsibility that comes with manufacturing gas and liquid pumps for medical devices. For decades, our tailored solutions have been indispensable components of the devices supplied by leading global manufacturers. KNF pumps perform demanding tasks – they reliably transfer both gaseous and liquid media, and generate vacuum and pressure with precision.

Pump solutions for the highest quality standards

Our highly skilled and experienced employees work meticulously to find the best possible solution for your challenge, always supported by our Product Centers in Germany and Switzerland. You can count on us every step of the way, from providing you with sample pumps to developing prototypes to series production. We also fully support subsequent generations of devices in order to ensure continuous improvement.


Precision right from the start

KNF gas and liquid pumps are durable, adjustable and precise, making a crucial contribution to valid results – from devices for invasive or non-invasive examinations to processing procedures for liquid samples. KNF pumps supply constant volumes of gaseous and liquid media with the utmost precision.


When reliability is key

From the preparation and care of surgical instruments to surgical procedures including patient monitoring to irradiation technology, wound management and machine-aided intensive care through to device technologies for follow-up care – KNF pumps deliver safe and reliable performance in all manner of applications. 

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 competitve 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.

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

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 on tried and tested individual components, meaning that developing customized pumps is quick and inexpensive.



Ask us for more!

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.

Micro Diaphragm Gas Sampling Pump NMP 830 HP

Three times better: Flow rate, vacuum, pressure

  • The new NMP 830 HP is an extension of the NMP series, which has proven its worth over decades of use. This latest innovation offers a much higher flow rate, vacuum and pressure - while keeping the footprint small
  • A variety of motors: Depending on the operating conditions, a range of different motors from the KNF modular system are available, from inexpensive to high-end models

Diaphragm liquid pump FF 12 & FF 20

Up to 20,000 hours of maintenance-free operation

  • Developed for systems used to supply and prepare liquid samples for analysis
  • The number of sealing points has been reduced to a minimum and the pump head parts are welded to ensure maximum security
  • In the model featuring a brushless DC motor with IP 54 protection, the flow rate can be varied in accordance with the process requirements

Diaphragm Vacuum Pump N 816

High-performance aspiration of liquid waste from diagnostic procedures

  • Chemically resistant and humidity resistant

  • Above-average flow rate

  • Fully traceable components

Data Sheet

Diaphragm Liquid Pump FL 10

Hygienic and highly secure

Diaphragm gas pump N 936.3

Added value for autoclave manufacturers and users

Micro-diaphragm gas sampling pump NMP 03

Optimally streamlined for portable devices

  • Setting new standards: a total length of 24 millimeters, weighing only 11 grams

  • Minimal power consumption

  • Quiet and nearly vibration-free

Data Sheet