KNF Liquid Diaphragm Pumps

Liquid Diaphragm Pumps for OEM,
Process Industry and Lab Applications

As the technology leader in diaphragm pumps, KNF develops and manufactures state-of-the-art liquid diaphragm pumps. The development and production of liquid pumps takes place at KNF Flodos AG in Sursee, one of four Swiss locations of the KNF Group. These high-quality products are valued by OEM manufacturers, the process industry and laboratory users worldwide. With their self-priming capability and safe dry running, customized liquid pumps by KNF are used in the most demanding applications.

Customized Liquid Pumps for Challenging Tasks

KNF liquid diaphragm pumps offer outstanding robustness and cleanliness as well as leak-tightness and gentle handling of liquids. In addition, they are flexibly customizable. Medical technology, inkjet, process applications and analytical instruments are some of the areas that rely on these customized liquid pumps. With flow rates from 0.018 to 12.4 l/min, pressures up to 16 bar rel. and suction heights up to 6 mH₂O, the KNF liquid diaphragm pump portfolio covers a wide range of performance to find the right pump for most application parameters. Special pumps with explosion-proof certification, high IP protection or approved for food contact (FDA) complete the portfolio.

Products

Up to 12.4 l/min

Flow rate

Up to 16 bar

Relative pressure

Up to 6 mH₂O

Suction height

Entdecken Sie die Innovationen, die KNF Flüssigkeitsmembranpumpen zur bevorzugten Pumpentechnologie für anspruchsvolle Anwendungen machen.

Quickly and Reliably Configurable: KNF Customized Liquid Pumps

In addition to the many pump series, KNF offers extensive customization options for all liquid diaphragm pumps. In this way, customers receive customized liquid pumps that are truly tailored to their specific needs. Almost all aspects of the pumps can be customized, from hydraulic and electrical connections to various motor options and pump head, valve and diaphragm materials. KNF uses a modular design approach that allows for customization with proven and tested parts, making customization not only reliable, but also fast and economical. Combined with various accessory options such as dampers, filters, mounting kits or pressure control valves, KNF can provide the right liquid pump for almost any application.

Liquid Diaphragm Pumps for Most Media

With their robust, gentle and clean operation, and the possibility of creating customized liquid pumps, the self-priming liquid diaphragm pumps can move almost any liquid. This includes abrasive media such as inks with pigment particles, or corrosive liquids such as strong acids or other highly reactive chemicals. KNF liquid pumps can also handle very sensitive media such as living cell samples or UV inks as well as both high and low viscosity fluids.

KNF Smooth Flow Technology

Many applications require low pulsation. Since KNF introduced its unique Smooth Flow Technology for liquid diaphragm pumps, pulsation is no longer an issue. Based on different technological approaches, all KNF Smooth Flow Pumps offer outstandingly low pulsation levels and are also available as customized liquid pumps, just like all other KNF diaphragm pump series.

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The Origin of Our Liquid Diaphragm Pumps

Our Product Center for liquid pumps designs, develops and produces liquid diaphragm pumps for the entire KNF Group. Get to know more about the Swiss location, its people and the technologies.

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