VICI Cheminert injectors and valves

Injection, switching, and stream selection, for LC, FIA, HPLC, UHPLC, and prep HPLC

• Pressure ratings from 100 psi to 20,000 psi liq
• Inert, biocompatible construction
• Easy field service
• Automated operation – pneumatic or electric
• 4, 6, 8, and 10 port and internal sample two position models
• Stream selection versions with up to 26 positions

The basic Cheminert design involves a flat rotor which is engraved with slots which connect the ports. A stator is held at a constant, preset force against the rotor.

When repairs are required, all that is necessary for rotor access is the removal of two or three screws. Remove the old rotor and replace it, put the screws back in and tighten them, and the valve is ready for use at the factory-set pressure specification. No adjustments are possible, much less required. Other advantages of the design include easy panel mounting, low actuating torque, and compact size.

The flat plate design offers flow paths for basic flow switching, sample injection, and stream selection up to 10 positions (28 positions in some models).