FP 150 Diaphragm Liquid Pump Series

with Unique Characteristics for Applications in Medical Device Technologies, 3D Jetting Technologies, Inkjet and Instrumental Analysis

The FP 150 series is based on a 5-diaphragm design that combines the advantages of diaphragm pump technology with the benefits of gear pump technology. The FP 150 diaphragm liquid pump series is self-priming, safe to run dry and at the same time the very low pulsation level makes secondary measures to avoid pulsing superfluous. Depending on the system set-up and speed, the values at the pump outflow at nominal flow rate are below 150 mbar, meaning that sensitive media are transferred gently.

Features & Benefits

These are the main advantages of the FP 150 diaphragm liquid pump series:

Low pulsation
Excellent linearity
Self-priming and can run dry
Gentle conveying of sensitive media
Long lifetime, no maintenance
Able to transfer aggressive media
IP 65

Impressive 5-diaphragm design: FP 150 diaphragm liquid pump series

Your advantages when using a liquid pump with smooth flow technology

The FP 150 liquid pump series is based on a multi-diaphragm technology with a 5-diaphragm design. This has the advantage that by interlacing the flow and the pulses generated by each of the 5 diaphragms, a very high and yet smooth flow is achieved in the diaphragm liquid pump. This helps to efficiently transfer liquids through long tubing with smaller diameters, since smooth flow pumps reduce pressure loss. It also minimizes vibration of the tubes, which can be bothersome to the process. Thanks to very low pump pulsation, they enable an efficient and gentle flow of high liquid volumes. Due to this the FP 150 series is part of the KNF smooth flow pump series.

Get An Overview of Smooth Flow Technology

KNF smooth flow technology explained by Stephan Engel, Product Manager

Comparison of FP 400 smooth flow pump vs. a conventional diaphragm liquid pump

Pulsation comparison exemplified with the FP 70 smooth flow pump

Possible Areas of Use

The KNF FP 150 diaphragm liquid pump series is ideal for these applications for two reasons: Firstly, they handle fluids very gently, ensuring that their specific characteristics do not change. Secondly, they can handle chemically aggressive or abrasive media, e.g., ink containing particles with ease. This is important in terms of service life and reliability.

Inkjet Technologies

3D Jetting Technologies

Instrumental Analysis

Medical Device Technologies

For ink delivery and ink circulation

To the Application

For binder supply

To the Application

For sample preparation and transfer of liquid/gaseous samples for analysis

To the Application

For use in small cooling circuits such as X-ray machines or lithotripsy devices and for applications carried out in close proximity to patients

To the Application

The Right Fit for Your Need

The FP 150 diaphragm liquid pump series consists of two versions: the FP 150 as standard version and the FP 1.150 as high pressure version. Both pumps are maintenance-free diaphragm liquid pumps with minimal pulsation and shearing force.

Familiarize yourself with the technical details of our FP 150 diaphragm liquid pump series:

FP 150 – Standard Version

FP 1.150 – High Pressure Version

Flow rate (max.)	1.5 l/min
Suction height (max.)	2.7 mH₂O
Pressure (max.)	2 bar (rel.)

Get all technical details here

Flow rate (max.)	1.1 l/min
Suction height (max.)	2.3 mH₂O
Pressure (max.)	6 bar (rel.)

Get all technical details here

What makes the FP 150 Diaphragm Liquid Pump Series Outstanding

Another winning feature of the FP 150 diaphragm liquid pump series is the infinitely adjustable flow rate with outstanding linearity between 10 and 100 percent. Also outstanding for the FP 150 diaphragm liquid pump series is the aesthetic black design with clear lines and flow direction. This supports not only modern appearance but it is also easy to clean.

Thanks to the modular system, the FP 150 series is available in a range of different versions. With a choice of EPDM, PTFE or FFKM diaphragms, the pump can be equipped for applications involving very aggressive media.

Convince yourself of the outstanding features of the FP 150 series.

Integrated BLDC motor

Wobbling eccentric

5-diaphragm technology

Integrated BLDC motor

Supporting the wide flow controllability provided by the smooth flow of the 5 diaphragms, a brushless DC motor integrated in a tight IP65 alloy housing allows for precise adjustment of the flow rate between 0.2 to 1.5 l/min. The advantages of BLDC motors in smooth flow pumps include nearly wear-free drives, a long service life, and quiet operation with minimal vibration.

Wobbling eccentric

At speeds of up to 4,000 rpm, the wobbling eccentric transforms rotational movement of the motor to linear motion needed to drive the diaphragms. All this with generating almost no vibration and noise, and with only minimal forces acting on the motor hardware. This ensures a long, maintenance-free and highly reliable performance of the diaphragm liquid pump in the customer’s system.

5-diaphragm technology

By interlacing the flow and the pulses generated by each of the 5 diaphragms, a very high and yet smooth flow is achieved in the diaphragm liquid pump. This helps to efficiently transfer liquids through long tubing with smaller diameters, since smooth flow pumps reduce pressure loss. It also minimizes vibration of the tubes, which can be bothersome to the printing process.

Do you have any further questions about the pump?

We would be delighted to advise you on everything from pump selection to customization for your specific application. We would also be happy to discuss options for trying out a sample pump.

Get To Know the KNF Smooth Flow Pump Series

Would you like to know more about smooth flow pumps? Find the pump that meets your specifications and requirements.

Go to Products

Further Videos

Flexible support from start to finish – your added value is our priority

Structure animation of the FP 150 diaphragm liquid pump

"How to cover trends in ink supply with new diaphragm pumps" - webinar at drupa preview 2021

Smooth flow pump FP 70 - Low pulsation, high efficiency

Smooth flow pump FP 70 - Hose vibration comparison

Minimal pulsation exemplified here with the FP 400 diaphragm liquid pump

Diaphragm liquid pump FK 1100 - Unboxing

Diaphragm liquid pump FL 10 - For precise ink delivery and clean print heads

KNF Modular System

Flexible, custom-fit, cost-effective – from standard to high-end

Every application is different and some are one of a kind. Our modular system is designed to give you a high degree of flexibility, speed and reliability. You can be sure that every gas and liquid pump supplied by KNF will exactly meet your requirements, no matter how complex or unusual these might be.

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