Product performance:

1. It is normally closed. In case of fire, the smoke (temperature) sensor sends an electrical signal (DC24V/DC220V) through the control center, and the motor in the actuator is energized, so that the valve automatically closes and outputs an electrical signal for closing.

2. After the valve action, the DC motor drives to reset.

3. The valve can be closed manually and reset manually.

4. The action signal or reset signal is fed back to the control center and the interlocking equipment is started.

Product structure:

Main components: valve body, blade, shaft, bushing, temperature sensor, actuator, stainless steel spring plate, torsion spring, etc.

The maximum manufacturing size of the valve: 1200*800WX H matched with the size of the air duct, and the flange size is the same as that of the metal rectangular air duct in GB50234-2002.