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All of KNF NF series liquid pumps are self-priming and can run dry indefinitely. Their compact size allows you to place the pump on location, just where you need it. A wide range of corrosion-resistant materials are available including PTFE. KNF's Project Pump program permits us to make a variety of inexpensive modifications to match your OEM design requirements.

KNF liquid pumps are different than our air/gas line. Unlike other brands that simply adopt an air/gas pump for use with liquids, KNF's modern Swiss research and development product center is dedicated to developing only high performance liquid pumps.

KNF is the only diaphragm pump manufacturer that is listed with NSF. All of our products marked with .51 model number are now certified by NSF according to the standard NSF/ANSI 169.