1. Main structural features:

The frame is made of 2mm galvanized steel plate and welded after cold rolling. The blade is made of 1.0mm galvanized steel plate by cold rolling and double-layer spot welding, which has good corrosion resistance; Oil-bearing sintered bronze bearing is installed between the blade shaft and the frame, so the friction torque is small and maintenance is not needed; In order to make the ratio of goods to goods be split and stepless adjustable, the high-temperature resistant elastic rubber is used as the sealing material between the blades and the end of the flow characteristics, and the service temperature is 280C/90min.

Driving mode: manual, electric and pneumatic.

2. Working environment: temperature-10 ~+70℃

Special temperature 250℃/60min

Relative humidity ≤98%

Noise requirement: ≤45dB(A)

3, using environmental conditions:

Normal operation: it can run continuously and normally at the temperature of 0℃~45℃ and the relative humidity of 10%~98%.

Accident operation: For example, the wind cutting used in the station tunnel ventilation system and the station ventilation and air conditioning smoke exhaust system can run continuously and effectively for 1 hour under the high temperature smoke flow of 250℃.

Storage conditions: temperature 0℃~45℃ and relative humidity 10%~98%.

Withstand pressure: ≥1200Pa

4. Structural characteristics of main components: The overall structure of single air valve is mainly composed of frame, blades, transmission mechanism and other components. If the control system fails, it can be manually adjusted through the manual attachment of the actuator.

5. Wiring diagram of electric actuator

6. Maintenance and maintenance of air volume control valve:

In order to ensure the long-term stable operation of the equipment bear, it must also be maintained regularly, and the maintenance period is three months. Maintenance contents are as follows:

(1) Remove surface dust and sundries;

(2) Check whether the electric and manual actuators are sensitive;

(3) Check whether the transmission rod is loose;

(4) Check whether the air valve is in place.

1. Main structural features:

The frame is made of 2mm galvanized steel plate and welded after cold rolling. The blade is made of 1.0mm galvanized steel plate by cold rolling and double-layer spot welding, which has good corrosion resistance; Oil-bearing sintered bronze bearing is installed between the blade shaft and the frame, so the friction torque is small and maintenance is not needed; In order to make the ratio of goods to goods be split and stepless adjustable, the high-temperature resistant elastic rubber is used as the sealing material between the blades and the end of the flow characteristics, and the service temperature is 280C/90min.

Driving mode: manual, electric and pneumatic.

2. Working environment: temperature-10 ~+70℃

Special temperature 250℃/60min

Relative humidity ≤98%

Noise requirement: ≤45dB(A)

3, using environmental conditions:

Normal operation: it can run continuously and normally at the temperature of 0℃~45℃ and the relative humidity of 10%~98%.

Accident operation: For example, the wind cutting used in the station tunnel ventilation system and the station ventilation and air conditioning smoke exhaust system can run continuously and effectively for 1 hour under the high temperature smoke flow of 250℃.

Storage conditions: temperature 0℃~45℃ and relative humidity 10%~98%.

Withstand pressure: ≥1200Pa

4. Structural characteristics of main components: The overall structure of single air valve is mainly composed of frame, blades, transmission mechanism and other components. If the control system fails, it can be manually adjusted through the manual attachment of the actuator.

5. Wiring diagram of electric actuator

6. Maintenance and maintenance of air volume control valve:

In order to ensure the long-term stable operation of the equipment bear, it must also be maintained regularly, and the maintenance period is three months. Maintenance contents are as follows:

(1) Remove surface dust and sundries;

(2) Check whether the electric and manual actuators are sensitive;

(3) Check whether the transmission rod is loose;

(4) Check whether the air valve is in place.