The Let It Flow - Bundle contains:  2x Normally closed microvalve - classic,  1x PEEK adapter for distributing or merging liquids, 1x Electronic control unit (programmable ECU-P2-nc) to control two memetis NC valves, 1x Bartels Mikrotechnik micropump mp-liq, 1 x pump driver for memetis GUI, and cables and associated tubing. 

Inside the normally-closed valve, a shape memory alloy actuator switches the valve open by pressing a spring element to the top. A small ball closes the opening of the valve. By pressing the spring element to the top, the ball is released from the opening allowing fluid to flow through the valve.  The micropump from Bartels Mikrotechnik is a miniaturized double-diaphragm pump. The pump is run by two piezo actuators.

Key Features

• 2/2-way seat valve, normally closed, media separated, controllable
• Ultra compact size
• Usable with liquids and gases
• Low internal volume: < 4 µl
  
• Valve materials: 
  
• Valve housing materials: PEEK, PTFE or PMMA; 
• Valve wetted materials: PDMS, FKM or EPDM
• Low power consumption of 0.3 W (microvalve)
• Fluidic interfaces adaptable: Flange connector, tubing connector, 
• Interface thread size ¼-28’’ fitting or manifold mounting available 
• Fluid adapter and electrical control for up to four valves can be provided
• Graphical user interface for microvalves and micropump available
• Python library or drivers available  

Typical Applications

• Precision control of liquid or gas flow
• Integration in analytical instruments for sample handling
• Other precision control applications (e.g. supply of organ-on-chips, bioreactors)
• Microfluidics system