Main Technical Parameters
Air leakage rate (at differential pressure 300Pa): ≤700m³/m²·h
Micro switch contact capacity: AC380V＜0.5A
Control voltage: DC24V
Resistance coefficient at fully open position: ＜0.5

Structure
Main components: valve body, valve blade, shaft, shaft bush, actuator.
Smoke outlet thickness: L=200mm.

Performance
It is installed in the smoke exhaust system and remains normally closed under normal conditions. In case of fire, the smoke detector sends an electrical signal (DC24V) through the control center. The electromagnet inside the actuator is energized to operate, and the valve opens automatically while outputting an opening electrical signal to interlock and start the smoke exhaust fan outlet. The valve can be manually opened on site and manually reset after operation.