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exhaust air valves are designed for installation on the ceiling or in a wall,
1. Made of zinc-coated steel,
2.Painted white (RAL 9010),
3.Easy air flow adjustment by turning the central part,
4.The blocking nut makes it possible to adjust a minimum slot,
5.Special design ensures low noise level,
6.High quality finishing and modern design,
7.These valves can be installed directly on a duct,
8.Quick and easy installation.
| specification(mm) | neck size(mm) | overall size(mm |
| Φ150 | Φ 210 | Φ 260 |
| Φ 200 | Φ 260 | Φ 310 |
| Φ 250 | Φ 310 | Φ 360 |
| Φ 300 | Φ 360 | Φ 410 |
| Φ 350 | Φ 410 | Φ 460 |




