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

Diaphragm Gas Pumps and Compressors

KNF offers a wide range of diaphragm gas pumps and model variants specifically for sampling, evacuating and compressing industrial process media. KNF offers a number of custom materials and application-specific variants including: explosion-proof, double diaphragm, heat resistant pumps.

Model Flow rate at
atm. pressure
(mbar absolute)
(bar relative)
Temperature-Resistant and Heated Pumps up to 100 down to 180 up to 1.5 up to 43.5
ATEX Compliant Pumps up to 220 down to 53 up to 4.0 up to 58.0
Vacuum Pumps and Compressors up to 250 down to 15 up to 12 up to 174
HAZLOC Compliant Pumps up to 110 down to 2
Chemically Resistant Pumps (PTFE & PVDF Heads) up to 60 down to 2.0 up to 1.5 up to 21.8
Double Diaphragm Pumps up to 130 down to 4 up to 3.0 up to 43.5