◆材质：镀锌钢板

◆规格尺寸：W*H配合风管尺寸

◆特性：

1. 平时呈常开状态，火灾时烟（温）感器通过控制中心发来电气信号（DC24V），执行机构内的电磁铁通电动作，阀门自动关闭并输出关闭信号，阀门动作后电动复位。

2. 阀门也可手动关闭或70℃熔断器动作关闭。

3. 能与相关设备联锁控制。

◆Material: galvanized steel

◆Specification size: W*H with duct size

◆Features:

1. Usually in the normally open state, the smoke (temperature) sensor sends an electrical signal (DC24V) through the control center during the fire. The electromagnet in the actuator energizes, the valve automatically closes and outputs the closing signal, and the valve is electrically reset after the action.

2. The valve can also be manually closed or the 70 °C fuse action is turned off.

3. Can interlock control with related equipment.