Series ACT Pneumatic & Electric Actuator

Brand: Dwyer Instruments, LLC

The W.E. Anderson Series ACT Actuators are available in either pneumatic or electric models.

The wide range of torques and voltages means there is an actuator for almost any application. The standard ISO 5211 mounting configuration makes installation to any valve or damper quick and simple.

W.E. Anderson pneumatic ACT models are a compact rack-and-pinion design with a symmetrical structure that ensures fast and steady action, high precision and high output power. The corrosion resistant anodized aluminum body is designed to withstand the harsh and abusive industrial environments and provide reliable service. We offer double acting and spring return models in a variety of sizes to fit any application.

W.E. Anderson electric ACT models are available in two-position or modulating configurations and NEMA 4X or NEMA 7 rated enclosures. All electric actuators utilize a high grade powder coated aluminum enclosure with visual indicators.

The two-position models come standard with two auxiliary switches, and modulating models offer an output for position monitoring. Certain models are equipped with manual overrides allowing the operator to cycle the valve manually for installation or maintenance checks.
  • ISO 5211 Mounting configuration for easy installation
  • Pneumatic actuators offer corrosion resistance anodized finish
  • NAMUR mounting configuration on pneumatic actuators
  • Two-position electric actuators include auxiliary limit switches
  • Modulating electric actuators offer an output for position monitoring


Actuator Type

  • Double-Acting
  • Pneumatic
  • Spring Return

Duty Cycle

  • 85%

Enclosure, Body Material

  • Aluminum - Anodized
  • Epoxy Coated Aluminum End Caps
  • Powder-Coated Aluminum

Environmental Protection

  • IP67
  • NEMA 4X
  • NEMA 7


  • 4-20 mA


  • Liquids & Gases



NPT Connection

  • 1/2” NPT Female
  • 1/4” NPT Female
  • 1/8” NPT Female

O-Ring Material

  • Ethylene Propylene (EPR)
  • PTFE

Power Requirement

  • 110 Vac
  • 220 Vac
  • 24 Vac
  • 24 Vdc

Pressure Range

  • psi: 225 (kPa: 1,550, bar: 15.5)

Response Time

  • 45 seconds

Seat / Seal Material

  • EPDM
  • PTFE


  • Line: 2” to 12”

Standard Features

  • Manual Override, Position Indicator & TD Models Come with Two Limit Switches

Stem Material

  • 410 Stainless Steel

Supply Pressure

  • psi: 40 to 115 (kPa: 270 to 790, bar: 2.7 to 7.9)

Supply Pressure - Maximum

  • psig: 120 (kPa: 800, bar: 8)

Temperature Range

  • -30° to 60° C (-22° to 140° F)
  • -40° to 80° C (-40° to 176° F)

Wetted Materials

  • 316 Stainless Steel

  • Designed for quarter turn valve or damper control
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