The VICI Valco EMHMA-CE:

Description:
The product is a compact microelectric motor and gearbox actuator engineered for Cheminert® multiport valves. It provides smooth, accurate, and repeatable valve switching, making it ideal for automated analytical workflows. Designed for reliability in chromatography, sampling, and fluid-handling applications where precision and low-noise operation are essential. It consists of a control module, a steppermotor/gearbox assembly, a C25-6180D 10A-0473C Cheminert fitting attached, a universal AC input (100-240 VAC, 50-60 Hz) to 24 VDC power supply, and 11 interconnecting cables

Model: EMHMA-CE (Part 1)
Type: Microelectric actuator (motor + gearbox assembly)
Compatible With: VICI Cheminert® multiport valves Mechanical / Motion:
Stepper motor coupled with a precision reduction gearbox to increase torque and positional stability.
Smooth incremental rotation for reliable indexing of multiport valve positions.
Mounts directly to the valve body using appropriate mounting hardware.

Electrical Requirements:
- Power Input: 24 V DC (via included or external power supply).
- Typical control interface: step/direction or integrated controller (depends on system).
- Designed to operate with low-voltage control systems in analytical equipment.
 

Function:
- Provides automated control of valve rotor position.
- Enables software- or instrument-controlled port switching.
- Suitable for analytical automation systems with multiport flow routing.
 

Application Areas:
HPLC / UHPLC systems / Analytical instruments/ Laboratory automation/ Sampling and flow-switching modules
Design: Compact footprint for easy integration into instrument housings
Build Quality: High durability for continuous operation cycles *VICI Cheminert® C25-Series Multiport Selector Valve A low-pressure rotary multiport stream selector valve from the Cheminert® line. Used for routing fluids or gases in analytical, sampling, and process systems with minimal dead volume. 
 

Model Example: C25-6180D (Part 2)

Specification: 
- Replacement valve body for a 10-position selector with 1/8″ tubing fittings.
- Maximum Pressure (liquid): 250 psi (≈17 bar).
- Maximum Operating Temperature: 75 °C (167 °F).
- Fitting Type: 1/4-28 flangeless fittings (for 1/8″ OD tubing).
- Port Bore Size: Typically ≈1.50 mm (0.060″) internal port diameter.
- Rotor Material: Valcon E2 (standard low-pressure formulation).
- Stator Material: PPS (polyphenylene sulfide) polymer.
 

Function:
-  Multiport selector valve (e.g., 10-position), routing fluid/gas streams between inlet and multiple outlets or dead-ended positions.
-  Designed for low pressure analytical and fluid handling applications (e.g., sampling, stream selection).
-  Valve rotors and stators can be replaced for maintenance without removing body from system.
-  Combined Assembly Function When the EMHMA-CE actuator is mated to the C25-series Cheminert® valve (e.g., C25-6180D):
   • The micro-electric actuator provides reliable, programmable rotation to index the valve’s rotor to selected positions.
   • The valve responds by routing the fluid/gas between ports based on rotor position.
   • Useful in automated systems such as multi-stream selection, analytical sampling, autosample routing, and flow distribution.