Purpose: Used in the pipes of fresh air systems, exhaust systems, variable air volume air conditioning systems, and purifying air conditioning systems to keep the air volume constant within a certain accuracy range

Material: galvanized steel sheet

Function:

1. Wind direction adjustment: automatic mechanical mechanism without external power

2. Working temperature: 10-50°℃

3. Pressure difference: range 50-10Pa

4. Installation method: horizontal or vertical installation

5. High flow adjustment accuracy, flow range 4:1

6. There is a pointer on the outside to display the flow scale, and the scale error is ±4%