The Rosemount PowerVUE 4x5 Power Positioner converts the linear motion from a pneumatic piston into an 80° rotation of a drive arm. With few moving parts, the pneumatic power positioner remains the simplest, most reliable and most cost-effective method of actuation.

Torque ranges are offered from 400 ft-lbs to 4,600 ft-lbs. These instruments use two-wire loop power for low-cost replacement of existing instruments, avoiding separate power and signal wiring.

Self-diagnostic capabilities allow you to check fan/damper actuator performance in place by comparing the present signature (load, friction, etc.) against stored signatures to discover performance changes before they cause problems.

Features include direct 4-20 mA signal input with integral I/P, characterizable response, reverse or direct acting, and double acting piston (no vanes). Optional "fail-in-place" upon loss of plant air supply. Manual operator and ValveLink Diagnostics/AMS are included.

Repeatability is better than ±0.5% of full stroke.

Applications

• Utilities
• Steel mills
• Refineries
• Pulp and paper
• Waste water (aeration blowers)