Since the end of 2012, Servoflo has been selling the mp6 micropump, made by Bartels of Germany.
This unique micropump focuses on pumping up to 7 ml/min of water and 18 ml/min of air/gas. Other liquids can also be pumped. Typical applications for the micropump include medical drug delivery, cell culturing applications, fuel cells, consumer, nebulizers and much more.
mp6 micropumpThe functional principle is based on a piezoelectric diaphragm in combination with passive check valves. A piezo ceramic mounted on a coated brass membrane is deformed when voltage is applied. By the resulting down stroke, the medium is being displaced out of the pump chamber below. The check valves on both sides of the pump chamber define the flow direction.
The response to this product has been tremendous, and we are excited about the many new possibilities for this interesting product.
Bartels has release 4 new tech notes to assist customers in their use of the pump:
Amplitude and Frequency Effects on Flow Performance - Based on the diaphragm pump principle, themp6 has a typical flow and pressure performance. By controlling the piezo actuator deflection, the performance can be varied. The amplitude determines the height of the piezo deflection and thereby the displaced volume and the frequency the number of deflections.
Running Multiple mp6 Micropumps - Applications requiring higher flow rates can be done by combining pumps together, in either series for higher backpressure situations (600 mbar for liquid) or in parallel for higher flow rate (about 7 ml/min per pump for water).
Media Compatability of the mp6-pp - The mp6-pp is a polypropylene version of the micropump. This table shows the chemical resistance of the polyproplyene for different media.
Viscosity Effects on Pump Performance - This note discusses the effect of different viscosities on pump flow and pressure performance.
In addition, there are many other application notes and demonstration videos which may be of interest.