Metal external grille with gravity shutters 485 × 485 mm for Ø400 fan, grey

External grille for exhaust ventilation Ø400

The metal ventilation grille with gravity shutters is intended for installation on the outside of a building as part of an exhaust ventilation system. It is suitable for a Ø400 fan and helps protect the interior from backdraft and external dirt.

Main advantages

• Gravity shutters prevent air from flowing back and reduce heat losses.
• External installation allows use on the outside of a building in exhaust ventilation systems.
• Durable design combines a metal frame with a polymer coating and shutters made of durable PVC.
• Suitable size is intended for a Ø400 fan.
• Grey colour provides a neutral appearance on the outside of the building.

Use and installation

The grille is used in ventilation, heating and air conditioning systems, mainly as an external finishing element of exhaust ventilation. The external dimensions of the grille are 485 × 485 mm, the internal frame dimension is 434 mm, and the depth is 25 mm.

There are 4 mounting holes with a diameter of 4.8 mm, and the spacing between the mounting holes is 420 mm. During installation, the correct fan size Ø400 must be taken into account and it must be ensured that the gravity shutters can open and close freely.

Frequently asked questions

Which fan is this grille suitable for?

The grille size is intended for a Ø400 fan.

Do gravity shutters prevent air from flowing back?

Yes, gravity shutters prevent air from flowing back, protect the interior from external dirt and reduce heat losses.

What materials is the grille made of?

The frame is made of high-quality metal with a polymer coating, and the shutters are made of durable PVC. The grille is grey.

Conclusion

The metal external grille with gravity shutters is a practical choice for the external finishing of exhaust ventilation for a Ø400 fan, where protection against backdraft and reliable external installation are important.