Every control strategy eventually has to become physical movement, and that is the actuator's job. Across the plants ACD supplies, Fisher™ and Bettis™ actuators cover the span from fine throttling to heavy-duty on/off — and like the valves they drive, they live or die on the condition of a handful of wear parts.
Reliable actuation, demanding service
From Fisher™ pneumatic diaphragm and piston actuators to Bettis™ electric and heavy-duty units, the line is built to deliver consistent thrust and stroke under pressure, temperature, vibration and constant cycling. The actuator is what guarantees the valve actually reaches — and holds — the position the controller is calling for.
Matching the actuator to the duty
Reliability starts with the right match: enough thrust for the worst-case differential, the correct fail-action for the safety case, and a design suited to the environment. An actuator that is marginal for its duty wears its diaphragms, seals and springs faster and erodes the precision of the loop.
Parts that keep them moving
An actuator is only as reliable as its diaphragms, seals, springs and positioner. ACD supplies genuine actuator parts so the valve keeps stroking when it counts — and a worn actuator is restored to its rated performance rather than nursed along until it fails on line.
Fisher™, FIELDVUE™, Cavitrol™, Whisper Trim™, ENVIRO-SEAL™, easy-Drive™, Bettis™, ValveLink™ and all other brand names are trademarks of their respective owners. ACD America is an independent distributor and is not affiliated with or authorized by Emerson.