purpose

Applied to ventilation and air conditioning systems with smoke and fire prevention requirements, particularly suitable for important buildings with automatic fire extinguishing devices, and suitable for places where ventilation and air conditioning pipelines cannot be manually restored.

function

·Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate, causing the valve to automatically close.

·The valve can be quickly closed by the DC24V opening signal.

·Manually turn on or reset.

·After the valve is closed, it can be reset to the open state through a DC24V power supply.

·Output valve closing signal, which can be interlocked with other devices