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.