Model EVA-1 Compact Electric Actuator

The Model EVA-1 is a small, electronically controlled valve actuator developed specifically to fit 1/4 inch to 1 inch Research Control Valves. Its accurate positioning and compact size make it especially suited to flow control in research and small process applications. The unit features: •Mocroprocessor-controlled, linear stepper motor •4-20 mA analog input •Position 4-20 mA analog output (optional) •Choice of 12 speeds •Up to 40 pounds of stem thrust •Accurate and repeatable positioning •Adjustable split range •Quick and simple zero and span input and output adjustment •Adjustable stroke from 0.1875" to 0.5625" •User adjustable direct or reverse action •Optional handheld plug-in Communicator for all adjustments without removing the cover •Controlled seating force to prevent innervalve damage •Built-in temperature compensation •Stainless steel yoke and rugged epoxy coated aluminum housing •115VAC/12VDC, 230VAC/12VDC, and 24VDC models available