G2NPKNF.jpg

Quiet, Low-Pulsing Diaphragm Pump Can Handle Aggressive Fluids

Nov. 22, 2019
The FP 400 from KNF combines the advantages of diaphragm pumps with a pulsation level comparable to gear pumps.

The FP 400 next-generation diaphragm pump from KNF combines the advantages of diaphragm pumps—including self-priming, run-dry capability, and a long, maintenance-free life—with a pulsation level comparable to gear pumps. Pulsations for the pump are less than 150 mbar, and they can be significantly below that with the right tubing and flow path. The pump delivers up to 5 L/min of liquid at back pressures to 15 psi, and flow can be controlled so that is anywhere from  10% to 100% of the nominal flow rate. Flow is fully stable with fluid viscosities ranging between 1 and 150 cSt. The pump can handle viscosities up to 500 cSt, but there is some reduction in flow rate. The pump was designed to move sensitive media. The pump creates few vibrations and operational noise level is below 55 dBA. Materials in the flow path resist chemicals and help give the flow path an IP65 protection rating. The FP 400 is well-suited for recirculation applications in Inkjet printing, medical devices, and fuel cells.

KNF, knfusa.com/FP400

Sponsored Recommendations

June 27, 2025
Ensure workplace safety and compliance with our comprehensive Lockout/Tagout (LOTO) Safety Training course. Learn critical procedures to prevent serious injuries.
June 27, 2025
Join our expert webinar to discover essential safety control measures and best practices for engineering a truly safe and compliant industrial environment.
June 25, 2025
An innovative aircraft with electric drives combines the best of both worlds. The cross between drone and helicopter could mean significantly faster and more efficient air emergency...
June 25, 2025
Effective when other materials fail, ceramics are particularly suitable for applications requiring wear and chemical resistance, sliding characteristics or biocompatibility. Discover...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!