KNF designs a new high pressure, micro diaphragm pump

KNF has introduced a new high-pressure, micro diaphragm pump which can dose or transfer liquids or liquid-gas mixtures at flow rates up to 300 ml/min.

The new KNF Type NF1.25 pump is designed to operate either intermittently or continuously against pressure up to 6 barG (87 psig) over the pump’s lifetime. KNF can specially develop versions to handle greater pressure up to 10 barG (145 psig).

It's suitable for applications including medical devices and analyzers, inkjet printers, cleaning and disinfectant devices, water treatment systems, fuel cells and semiconductors. Type NF1.25 pumps integrate a patented valve system and OEMs can choose from a wide selection of motors, including iron core DC, ironless core DC, or brushless DC (BLDC) versions. The BLDC models can be supplied with 2-wire operation or with 4 wires enabling advanced tachometer output and speed control input and a highly linear control curve (flow rate vs. control voltage) allowing for use in closed-loop systems. A wide range of standard voltages and frequencies can be specified.

The diaphragm pumps are self-priming pumps, can run dry, and require virtually no maintenance over a long lifetime. They offer improved chemical resistance resulting from the use of PP, PTFE, EPDM, and FFMP materials for components that will come into contact with the pumped medium. Most neutral and aggressive liquids can be handled without risk of corrosion or other damage.

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