Introduction 
The SEA21.XX can be used with electrical on/off-controls to activate several types of valves, the actuator is made for either 24V or 230V supply in normally closed.

Application
For the on/off control of water flow in water-based floor heating systems as zone valve used in Commercial buildings, Residential building, Light industrial buildings...

Features
It equips a synchronous motor and gear mechanism
Reliable longtime operation
Maintenance-free design
No mounting tools required
LED position indicator on actuator
Single signal line for all kinds of thermostats
No power consumption in end position