Purpose: Installed in air-conditioning and ventilation pipes. The air volume is controlled by adjusting the angle of the valve plate by the handle connected to the valve shaft. The valve plate can be fixed by locking the handle at any position in the adjustable range. The valve shaft can rotate flexibly and adjust easily. .

Material: galvanized steel sheet/cold rolled sheet;

Function:

1. Manually open and close manually. The actuator is manual

2. 0-90 degree stepless adjustment.