Belimo SRF24A-SZ - rotary actuator with spring return for ball valves

Name: Belimo SRF24A-SZ - rotary actuator with spring return for ball valves
Brand: Belimo
SKU: SRF24A-SZ
Price: 1450.96 PLN
Availability: BackOrder

Belimo

zł1,450.96

VAT included

zł1,179.64 tax excluded

Belimo SRF24A-SZ is a rotary actuator for ball valves, with NC fail-safe function and 20 Nm torque. Powered by AC/DC 24 V, it operates with a 0.5...10 V control signal and provides a 0.5...10 V position feedback signal.

If the power supply is interrupted, the spring moves the valve to the closed position. Motor running time is 90 s / 90°, and the degree of protection is IP54.

Delivery in approx. 14 days

Belimo SRF24A-SZ actuator

A modulating rotary actuator with fail-safe function for ball valves. The Y control signal moves the valve to its operating position while tensioning the return spring. In the event of a power failure, the spring moves the valve to the NC fail-safe position.

Key features and specifications

Motor and return spring torque: 20 Nm.
Rated voltage: AC/DC 24 V; voltage range: AC 19.2...28.8 V / DC 21.6...28.8 V.
Y signal operating range: 0.5...10 V; U position feedback signal: 0.5...10 V.
Motor running time: 90 s / 90°; return spring running time: <20 s @ -20...50°C, <60 s @ -30°C.
Power consumption: 5.5 W during operation and 3 W in the rest position; sizing power: 8.5 VA.
Power and control connection: 1 m cable, 4x 0.75 mm².
Manual operation with a crank and locking switch; adjustable angle of rotation with mechanical stops.
Direct mounting on the ball valve with one screw; orientation relative to the valve can be set in 90° increments.
Degree of protection IP54; ambient temperature -30...50°C.

The actuator is intended for stationary heating, ventilation and air-conditioning installations.