FOREACH 10-channel ceramic rotary selector valve for reagent selection and wash-path switching

Count the reagent, wash and spare connections in your flow diagram, including their relationship to the common port. The MRV3-D10 has 10 channels, with a 1.2 mm bore and 1/4-28 UNF ports. Match the connection count, tubing and flushing sequence to the intended system.

MRV3 offers PEEK and PCTFE valve-head options. Compare both reagent and cleaning-fluid composition, concentration, temperature and contact time, and include the stator, rotor and other wetted parts in the compatibility review. Provide the actual fluids and operating conditions to select the head material and ordering configuration.

MRV3 uses motor-driven switching with optical position sensing and automatic homing on power-up. It supports RS232 and RS485 communication at 9600, 57600 or 115200 baud, with switching times of ≤2 s per revolution and <100 ms between adjacent ports. The motor and driver are optional; coordinate switching with pump operation during integration.

A channel can be reserved for cleaning fluid. Before changing reagents, switch to that channel and use the pump to pass cleaning fluid through the valve and connected tubing, then select the next reagent. Determine the amount of cleaning fluid and the number of flushes by testing with the actual tubing, reagents and acceptable residue level.

Provide the flow diagram, channel count, reagents and cleaning fluids, operating pressure and temperature, tubing and port requirements, mounting space, communication interface and switching sequence. We use these requirements to select the valve-head material, motor and driver, and confirm available combinations.