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Rotary/Selector Valves

Our rotary/selector valve is a precise electric rotary valve, which is designed for automated fluidic/microfluidic applications. The rotary valve provides automated routing of fluidic volumes.  Fast, reliable geared switching ensures long life.  The valve heads provide leak-free connections to 1/32” OD, 1/16" OD or even smaller OD capillary. With small channels and accurate positioning system, it offers the capacity of precise liquid handling.

 

Our rotary valves are constructed with either PCTFE, ceramic or sapphire as wetted materials, for use with a wide variety of chemicals. This valve is a cost-effective device to build your liquid distribution in the instrument design or laboratory experiments.  

Rotary Valve Specs:

Applications Example:

Custom Design of 28-Sample Selection and Delivery System

The system consists of one microfluidic controller, three rotary/select valves, one flow sensor, one microfluidic chip stage with a temperature control unit, and several reagent reservoirs. Reagent selection is controlled by rotary valve switching, temperature control, and the reagent flow rate is monitored by the flow sensors. The entire system is controlled either directly by the GUI on PG-MFC controller, or by python scripts through the serial port on the PG controller.

 

Up to 10 reagents can be connected to one rotary valve. In the following schematics, three rotary valves are connected in series. Up to 28 reagents can be randomly selected to flow into a microfluidic chip. A flow sensor is connected between the microfluidic chip and the third rotary valve. The flow rate is monitored by the liquid flow rate sensor. PG-MFC controller is capable of controlling the flow rate through the feedback loop. The microfluidic chip is fixed on a stage with the temperature control unit, which can be controlled by the microfluidic controller as well. Users can set the desired flow rate, injection volume of a specific sample, desired temperature through  PreciGenome microfluidic controller GUI.