Product performance:

1. It is normally open. In case of fire, the smoke (temperature) sensor sends an electrical signal (DC24V) through the control center, and the motor in the mechanism is energized to automatically close the valve and output 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. When the temperature rises to 70°C, the temperature sensor acts and the valve closes automatically.

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

6. The valve has six gears to manually adjust the opening of air volume.

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: 1200X 800WXH matches the size of the air duct, and the flange size is the same as that of the metal rectangular air duct in GB50234-2002.