The FP400 is a new generation of diaphragm pump from KNF combining the traditional advantages of diaphragm pump technology – self priming, can run dry, long life time – with a pulsation level comparable to gear pumps.
This new pump generation has been specially designed to meet the challenges posed by UV inks, which are currently witnessing substantial growth across a range of applications in industrial inkjet printing (IJP). The five diaphragms of the FP400 apply a low shear force to UV inks, thus avoiding premature curing in the pump.
The FP400 delivers up to 4.6 l/min to meet the higher recirculation volumes required by modern printers with a greater number of printheads per colour bar, such as those found in packaging, laminates, textiles, wallpaper, ceramics, glass, metals and wood. It is also suited to the high laydown printheads, which require much higher recirculation flow rates.
To provide compatibility with different ink types, it is available with a choice of material options: an EPDM version for less aggressive UV and water-based inks, a PFTE-coated diaphragm model, primarily for solvent-based inks, and a version with FFKM diaphragm and valves for oil/solvent-based inks and abrasive pigments.
Kirsty Wilson, marketing, said, ‘The FP 400 has been intensively tested for 18 months at major printer and ink manufacturers in Italy, Spain, Germany, the UK and China, and has already raised a great deal of interest.’
