- Features an adjustable flow rate below 1 µL/min!
- Suitable to be combined with Piezoelectric Pumps or even Peristaltic Pumps to minimize pulsations.
- Miniature size makes it possible to be used with different experiments.
- Reduced flow pulsation by restricting flow.
- Wetted materials available to use are Perfluoroelastomer, PEEK, and stainless steel.
- The operating pressure range is 0 ~ 200 kPa.
Example of Flow Data*
*Flow-graduation relationship varies according to the valve.
Note: Details including specifications, etc. may change without notification.
REDUCTION OF FLOW PULSATION
Piezoelectric micro pumps are small-sized, lightweight and slim diaphragm micro pumps driven by piezoelectric element. By considerably reducing the drive frequency and the drive voltage from the standard operating ranges, a piezoelectric micro pump alone can transfer μL/min level flows. However, significant pulsation is created at a low flow rate as represented by the blue line in the graph below.
By incorporating a micro needle valve to the discharging side of the piezoelectric micro pump, a low flow rate with almost no pulsation can be achieved. The red line on the graph below is an example that shows this remarkable reduction in pulsation. Reduced pulsation can also be achieved when combined with other kinds of pumps, such as peristaltic pumps.
EXAMPLE OF THE COMBINATION WITH A PIEZOELECTRIC MICRO PUMP
Note: The actual effect may change depending on the flow rates, pumps, types of tubing, etc. Please consult with us for more details.
ACTUAL EXAMPLE OF A LOW PULSATION MICRO PUMP MODULE
The low Pulsation Micro Pump Module is a module to adjust the flow of a piezoelectric micro pump at the μL/min level using a micro needle valve. In the setup in the picture below, the output flow from the module is being measured by a micro flow meter. The features of this module make it suitable for various fields, such as data from flow cytometers, cell culture equipment, etc.
VIDEO OF THE MICRO NEEDLE VALVE - NMV SERIES