The FP 400 low pulsation diaphragm pump [Image courtesy of KNF Neuberger]
The FP 400 incorporates the traditional advantages of diaphragm pump technology such as self-priming, the ability to run dry, and a long, maintenance-free lifetime under continuous-operation conditions, but it also has a pulsation level comparable to gear pumps, according to KNF Neuberger.
KNF Neuberger explains more:
“Pulsation for new FP 400 is less than 150 mbar. Levels far below this are achievable, depending on system tubing hardness, tubing inside diameter, and flow path length/configuration. The pump delivers up to 5 L/min of liquid at back pressures to 15 psi, with complete linear control of flow between 10% and 100% of the nominal flow rate. Pump flow is fully stable with fluid viscosities ranging between 1 and 150 cSt. The pump handles viscosities up to 500 cSt with some flow rate reduction. KNF designed the FP 400 specifically to provide gentle, low-shear conveyance of sensitive media. Other strengths of this innovative new pump include very low vibration, a noise level below 55 dBA, chemically resistant flow path material options for use with aggressive media, and an IP65 protection rating.”
