Process Pumps

KNF designs and manufactures diaphragm pumps for sampling, transferring, evacuating and compressing process media for many industrial applications. Our oil-free diaphragm pumps meet discerning engineer's requirements for robust and contamination-free performance under the most challenging and corrosive conditions. Additionally, our modular system allows us to custom-design pumps to meet your specific application requirements.

Featured Video: KNF Process Media Pumps for Industrial Applications

ATEX Compliant Pumps

KNF ATEX pumps ideal for pumping liquids in explosive atmospheres or transferring flammable fluids. All KNF ATEX pumps are certified in accordance with the (2014/34/EU) directive on equipment and protective systems.
View guidelines on the application of directive 2014/34/EU

Equipment for Explosive Atmospheres (ATEX) - European Commission references standards on equipment and protective systems intended for use in potentially explosive atmospheres.
Learn more about ATEX

Model Flow rate at
atm. pressure
Pressure height
Suction height,
self priming
NF 1.100 EX 1.2 40 2.5
NF 1.300 EX 3 40 2.5