Product overviewFrame vent with movable blinds designed for installation as part of double-glazing units. Suitable for framed window assemblies where controlled airflow and screening are required.
Control options- Manual
- Cable operated
- Ultraflex operated
- Motor operated
- Pneumatically operated
Key features- Reinforced construction for heavy-duty applications
- Movable blades (adjustable louvres)
- Designed for installation within double-glazing units
- Flange width: 24 mm
- Available with stainless steel wire mesh options (e.g. standard stainless steel wire mesh 304 - 6 x 6 mm)
DownloadsTechnical sheet (PDF) available for this product.
Technical specifications- Denomination: 427GL
- Slat step (mm): 100
- Total louvre depth (mm): 88.5
- K-factor (entry): 11.4
- CE coefficient: 0.296
- K-factor (discharge): 11.7
- CD coefficient: 0.293
- Water resistance at 0 m/s: -
- Water resistance at 0.5 m/s: -
- Water resistance at 1.0 m/s: -
- Water resistance at 1.5 m/s: -
- Water resistance at 2.0 m/s: -
- Water resistance at 2.5 m/s: -
- Water resistance at 3.0 m/s: -
- Water resistance at 3.5 m/s: -