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Webinar: Liquid handling Event by Festo UK & Ireland

On-line webinar

01/12/2020(10:00-11:00)

How pressure-over-liquid provides precise, accurate and cost-effective throughput Precise and accurate (more)

PPMA Show 2021

NEC Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Multi-diaphragm liquid pump offers gentle, calm and steady flow

Multi-diaphragm liquid pump offers gentle, calm and steady flow

Low pulsation is a key feature of the new FP 150 from KNF.  By using five diaphragms to provide smooth laminar flow, pulsation values are typically below 150mbar (at the pump outlet) at nominal flow rate and lower still depending on system configuration and running speed. The benefits include greater pumping efficiency, greater flow through your system at lower pressure and no vibration of the pump and tubing – resulting in less stress on system components. 

In this respect, the new FP 150 fares just as well as gear pumps whilst offering the additional advantages of a diaphragm pump: self-priming, the ability to run dry, chemical and abrasion resistance, no contamination of media, gentle (low-shear) transfer of delicate media, stability with changing viscosity, no cavitation, long service life, etc.

Linear adjustment of the flow rate is another strong feature of the new FP 150. The pump is driven by a

5-wire brushless DC motor with integrated electronics offering linear speed control via either a 0 to 5V control voltage or an inverse PWM signal. Thanks to the stability of the pump and the laminar flow it produces, the flow rate can be adjusted between 10% and 100% of the nominal flow rate with outstanding linearity.

The FP 150 is stable against back pressure (up to 2bar) and, with a PTFE-coated diaphragm as standard (FFKM is an option on request) and a choice of FFKM or EPDM valves available, it can pump a wide range of challenging fluids. During its development, the FP 150 has been intensively tested at several original equipment manufacturers in the USA, UK, Italy and Israel and has already aroused broad interest. The FP 150 is suitable for a wide range of applications including medical devices, diagnostic instruments, laboratory equipment, industrial inkjet printing, semiconductor, fuels cell and cleaning and disinfection applications.

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KNF Neuberger

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