Two position valves switch back and forth between Load and Inject, or Position A and Position B. Multiposition valves operate in continuous revolutions by incremental steps. There are several ways to actuate each type of valve, along with a number of supporting controllers and devices to interface the actuators with computer-controlled systems.

About actuators

Microelectric actuators

The microelectric actuator features automatic valve alignment, high-speed switching, and compact size.
• Two position
• Multiposition

Standard electric actuators

The standard electric actuator is lower cost than the microelectric, dependable, and economical.
• Two position
• Multiposition

Air actuators

Air actuators are useful in situations where any spark could be disastrous, where heat could compromise an electric actuator, or where electricity isn’t available.
• Two position
• Multiposition

Manual actuation

Simplicity and low cost are the main advantages of manual actuation.
• Closemount
• Standoff
• For use with an existing standoff
• Position feedback for manual valves

Actuator controllers and interfaces

• Feature chart
• 31E1: 3-way solenoid air valves
• 41E1: 4-way solenoid air valves
• DVI: Digital valve interface
• DVSP: Digital valve sequence programmer
• HSSA: High speed switching accessory
• MSVA: Manifold 3-way solenoid valve assembly
• PFAF: Position feedback for two position air actuators
• SVI: Serial valve interface

Valve accessories

• Purge housings
• Position feedback for manual valves
• Heated valve enclosures
• Heated column enclosures
• Heater assemblies
• Heater blocks
• Heater cartridges
• ITC: Instrumentation temperature controller

Valve mounting hardware

• What hardware do I need?
• Closemount hardware
• Knobs and handles for use with standoff
• Right angle drive
• Standoff assemblies for actuators and manual actuation

Further reference

Tools