The double-layer air louver tuyere has two movable blades with adjustable angles. The short blades are used to adjust the spread angle of the supply air flow, and can also be used to change the direction of the air flow; while adjusting the long blades can make the supply air flow attached to the ceiling or tilt down. The angle (when warm air is supplied). The outer blades of the double louver tuyere can be parallel to the long side or parallel to the short side. It can be used in conjunction with a regulating valve to adjust the air volume according to user requirements.
Double-layer shutter air outlet features:
1. Double-layer adjustable blades can get different air supply distances and different diffusion angles
2. can be used as air outlet
3. optional aluminum or iron production
4. can be used in conjunction with the regulating valve