The Siemens SSP31 actuator is an electromechanical device from the Acvatix™ range, designed for precise control of small HVAC valves such as the VVP47, VXP47, and VMP47 series. Operating on AC 230 V with a 3‑position (floating) control signal, it delivers a nominal force of 160 N and achieves full stroke in approximately 150 seconds at 50 Hz. The actuator features automatic valve stroke detection for simplified commissioning and mounts directly onto valves using a coupling nut, eliminating the need for tools.

Standard models are supplied with a 1.5 m plug‑in cable, while optional halogen‑free cables in 2.5 m and 4.5 m lengths are available. Additional functionality includes manual override with position indication and the ability to connect multiple actuators in parallel. With the AL100 adapter, the SSP31 can also retrofit Siemens 2‑way, 3‑way, and 4‑way valves, making it suitable for both new installations and upgrades.

This actuator is ideal for water‑side regulation of hot and chilled water in heating, ventilation, and air‑conditioning systems, offering reliable performance, long service life, and seamless integration into building automation networks.