Belimo LRF230-O - rotary actuator for ball valves

Belimo LRF230-O – rotary actuator with safety function

The actuator is designed for ball valves. During operation, it moves the valve to the operating position and tensions the return spring; when the power supply is interrupted, the spring moves the valve to the safety position.

Key features and specifications

• Motor and safety function torque: 4 Nm.
• Rated voltage: AC 100...240 V; frequency: 50/60 Hz.
• Control: Open/Close.
• Position after power failure: NO, valve open (A–AB = 100%); for valves with an L-port: A–AB = 0%.
• Motor running time: 75 s / 90°; safety function running time: <20 s @ -20...50°C, <60 s @ -30°C.
• Power consumption during operation: 3.5 W; in idle position: 2 W; sizing power for cable selection: 6.5 VA.
• Power and control connection: 1 m cable, 2x 0.75 mm².
• Manual adjustment using a crank, with the option to lock in any position; mechanical position indicator.
• Degree of protection: IP54; ambient temperature: -30...50°C.

Direct mounting on the ball valve is carried out using one screw. The actuator can be positioned relative to the valve in 90° increments.