The electric rotary or selector valve is a fluid handling valve driven by a stepper motor, designed to facilitate fluid selection, distribution, and automated injection in fluidics applications. This precision rotary valve automates the routing of fluidic volumes, making it suitable for use with aggressive or reactive fluids.  Constructed with primarily ceramic and PTFE for wetted materials, the valve offers options for anodized aluminum and PEEK as construction materials. The inclusion of an optical encoder inside the valve ensures accurate information regarding the position of the rotor.   Users benefit from easy programming of the valve controller through the communication interface, allowing them to execute desired position sequences effortlessly. For tailored configuration requirements, please reach out to us, and we will be pleased to assist you.

Key Features

• No metal parts contact with working fluid;
• Wet materials: ceramic, PTFE
• Manufactured with smooth internal flow path for easy flushing and cleaning;
  
• 3-Port, 4-Port, 6-Port, 9-Port  configuration;
• Minimal dead volume of 5.14 µL; 
• Avoid cross-contamination;  
• Excellent sealing surface design to maintain consistent torque in a specified range;
• Highly reliable valves  guaranteed by precisely machined and polished assembly process; 
• Optical encoder for accurate positioning;
• Communication interface: RS232/RS485/CAN;  
• Rotary valve customization is available
  

Typical Applications

• Biological sample preparation and distribution
• Sample injection or selection
• Microfluidics system 
• Automatic reagent delivery 
• High speed sample enrichment
• Column back flushing
• Flow cytometry or chemistry analyzer 
• Mass spectrometers
• Elemental analyzers 
• Analytical instruments