The UP4 pneumatic rotary actuator converts linear piston motion to 90° rotary output for damper and valve control, delivering up to 1966 N·m (1450 lb·ft) torque at 690 kPa (100 psig) air supply. It features a carbon steel frame and output shaft, die-cast aluminum housing, and nitrile seals, with a 6550 cm³ (400 in³) cylinder displacement. Standard enclosure is IP24 (NEMA 3R); IP66 (NEMA 4X) is available. Control input options include 3-15 psig, 3-27 psig, or 4-20 mA with EDP300 or TZIDC digital positioners supporting HART, fail-safe, or fail-in-place modes. Air supply connection is 1/4-18 NPT female. Operating temperature range is up to 85 °C (185 °F). Shipping weight with positioner is 163 kg (360 lb).
The control signals provide modulating or on/off control power to position devices through mechanical linkage or by direct coupling.
Types UP1 and UP2 actuators include a double-acting rotary vane power unit. Types UP3, UP4, UP5, UP6 and UP7 actuators include a double-acting cylinder with a motion conversion mechanism to convert linear to rotary motion.
| ABB Measurement & Analytics | |
|---|---|
| Product Category | Pneumatic Rotary Actuators |
| Product Number | UP4 |
| Product Name | Universal Pneumatic Rotary Actuator |
| Features | Position Feedback (optional feature) |
| Rotational Output | Shaft |
| Body Material | Steel |
| Operating Temperature | 185 F (85 C) |
| Actuator Style | Rack and Pinion (Single) |
