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KNF Launches FM 50 Series for Liquid Metering

KNF has introduced a new series of OEM liquid diaphragm pumps. The FM 50 is designed to offer high precision and reliability for demanding applications.

The new KNF FM 50 series is ideal for demanding liquid metering applications.

KNF_FM_50_Pump_Curve This illustration shows the change in flow (l/min) as a function of the input signal (PWM or control voltage). Depending on the desired control characteristics, customers can modify the standard parameterization (black). Within a certain range (blue area), customer-specific pump characteristics (example in green) can be defined. This is done using two points that define the linear function.

Enhanced Accuracy and Customization

The FM 50 series enhances liquid metering accuracy and customization, utilizing advanced pump drive technology for easy system integration and durability. The pumps deliver a flow rate of 100-500 ml/min with a setpoint accuracy of +/- 2 % and maintain a linear flow rate even under varying conditions, with a back pressure of up to 1 bar.

Advanced Motor Technology

The FM 50's motor allows for control via voltage or PWM signal, with standard settings providing 100 ml/min at 1 V or 20% PWM and 500 ml/min at 5 V or 100% PWM. The motor can be factory-parameterized to meet specific customer requirements, including a 2-point calibration for customized flow characteristics.

Versatile and Reliable

The FM 50's polypropylene head, combined with EPDM or PTFE diaphragms and EPDM or FFKM valves, ensures safe transfer of most liquids. The pump is leak-tight, self-priming, and run-dry safe, making it suitable for transferring and metering fluids in medical devices, analytical and diagnostic instruments, food & beverage, and cleaning & disinfection applications.

For further details visit KNF Launches FM 50 Liquid Metering Pump | KNF