KNF · Diaphragm Liquid Pump

NF 25

The KNF NF 25 is a diaphragm liquid pump engineered for reliable operation, delivering up to 0.25 l/min, at up to 1 bar (rel.), suction height 3 mH2O. It is built with a PP, PVDF pump head, EPDM, PTFE diaphragm options, EPDM, FFKM valve options and DC, Brushless DC motor, and offers integrated pressure relief valve available, high performance-to-size ratio, contamination-free transfer, highly resistant to aggressive media, self-priming and can run dry. The pump is contamination-free transfer, and features digitally adjustable motor.

The NF 25 is widely used in climate technology, inkjet printing, medical equipment, analytical instruments, lab equipment, automotive, food & beverage, semiconductors and cleaning & disinfection.

  • Flow rate: 0.25 l/min
  • Pressure: 1 bar
  • Suction height: 3 mH₂O

Frequently Asked Questions

What is the maximum flow rate of the NF 25?

The NF 25 delivers up to 0.25 l/min at 1 bar (rel.).

Is the NF 25 self-priming and can it run dry?

Yes — the NF 25 is self-priming and can run dry without damage.

Which wetted materials are available for the NF 25?

The NF 25 is available with heads: PP, PVDF; diaphragms: EPDM, PTFE; valves: EPDM, FFKM.

Manufacturer page and datasheet

Contact LDR Technologies about NF 25