• Allows fine manual adjustment of flows below 1 μl/min.
• Reduces flow pulsation by restricting flow.
• Constructed with wetted materials including Perfluoroelastomer, PEEK, and stainless steel.
• Operates within a pressure range of 0 to 200 kPa.

The micro needle valve is designed to manage low flow rates with minimal pulsation. The flow-graduation relationship varies according to the specific valve used. An example flow data graph illustrates the flow rates at different graduations, specifically for water at 10 kPa.

Piezoelectric micro pumps, known for their small size and lightweight design, can transfer flows at the μl/min level by reducing drive frequency and voltage. However, this can cause significant pulsation. By integrating a micro needle valve on the discharge side, pulsation is significantly reduced, as demonstrated by the red line in the provided graph. This setup is effective with other pump types, such as peristaltic pumps.

The Low Pulsation Micro Pump Module, which includes a piezoelectric micro pump, micro needle valve, and micro flowmeter, is suitable for applications like flow cytometers and cell culture equipment. The module adjusts flow rates at the μl/min level, ensuring precise control and minimal pulsation.