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The SwitchEZ™ 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.

 

The rotary valves are constructed with PCTFE and sapphire crystal 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.  

Features:

  • Inert wetted materials: PCTFE valve head and sapphire crystal valve spool for anti-corrosion; No metal parts contact with working fluid.

  • Avoid cross-contamination.

  • Highly reliability guaranteed by precisely machined and polished assembly process; 

  • Multiple configurations: 6, 8, 10, 12, 16 ports.

  • Optical encoder for accurate positioning;

  • Communication interface: RS232, RS485, CAN and USB(via RS232 port).

  • C/C++,  python library.

  • Compatible with PG-MFC iFlow serial controller or direct computer control via USB/RS232 port. 

  • Custom design and OEM available.

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Rotary Valve Specs:

Table. Technical specifications of the standard SwitchEZ electric rotary valves

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SwitchEZ™ Electric
Rotary Valves

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Designed for Precision Flow Control

Specifications

Modes:

Port Selection Mode

Our electric rotary valves are capable of accurate and repeatable flow re-direction. One input/output can be diverted to any one of up to 16 outlets/inlets.

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Loop Injection Mode

Our 2-way 3-position valve can be used as 6 port switching valves for sample injection devices in chromatography systems. This application consists of two operations: Load and Inject.

Also it can be used for sample recirculation system for applications such as cell culture, organ-on-a-chip, etc. (Refer to application example #3)

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Sample Load                                        Sample Inject
Modes

Software and API Library:

API libraries of Python 2, Python 3, C++, LabView, and Matlab (coming soon) are available to use. These libraries allow users to integrate SwitchEZ valves into your own system easily.

  • DLL library for developing user applications

  • Support both 32-bit/64-bit APIs

  • Controllable via iFlow controllers, computers or other devices via CAN, RS485, RS232 or USB ports

  • Tutorial and sample programs. 

All of our standard software is free of charge and is compatible with Microsoft Windows 10 (32 and 64 bits), Windows 8 (32 and 64 bits), Windows 7 (32 and 64 bits), and Linux version.

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  • EZSwitch rotary valve manual
  • SDK for the rotary valves

Applications of Rotary Valves 

  • Automatic reagents delivery

  • Liquid sample preparation and distribution

  • Liquid Sample injection or selection

  • High speed sample enrichment

  • Analytical instruments