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Model EVA-1 Electronic Valve Actuator

Brand: Research Control Valve

The Model EVA-1 is a small, electronically controlled valve actuator developed specifically to fit 1/4" to 1" Research Control Valves. 

Its accurate positioning and compact size make it especially suited to flow control in research and small process applications.
Features
  • Microprocessor-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 adjustments
  • Adjustable stroke range 0.1875…0.5625 in. (4…14 mm)
  • User adjustable direct or reverse action
  • RS-232 Serial Port for all adjustments without removing the cover
  • Controlled seating force to prevent inner valve damage
  • Built-in temperature compensation
  • Stainless steel yoke and rugged epoxy coated aluminum housing
  • 115 Vac/12 Vdc, 230 Vac/12 Vdc, and 24 Vdc models available

Specifications

Industries

  • Chemical, Refining & Petrochemical
  • Oil & Gas

Environmental Protection

  • NEMA 4

Agency Approvals

  • CSA
  • FM

Enclosure, Body Material

  • Aluminum Housing

Material of Construction

  • Yoke: Stainless Steel

Operating Temperature

  • 14° to 140° F (-10° to 60° C)
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