Metal external grille with gravity shutters 400 × 400 mm for Ø350 fan, grey

External grille with gravity shutters for air exhaust ventilation

The metal ventilation grille is intended for installation on the outside of the building as part of an air exhaust ventilation system. Gravity shutters are used for directed air exhaust and help prevent it from returning indoors.

Main advantages

• Gravity shutters prevent air from returning and reduce heat losses.
• Interior protection helps limit the ingress of external impurities through the ventilation opening.
• Metal frame is made of quality metal with a polymer coating.
• Durable shutters are made of PVC and suitable for outdoor use in ventilation systems.
• Appropriate size is adapted to a Ø350 fan, with an external size of 400 × 400 mm.

Use and installation

The grille is used in ventilation, heating and air conditioning systems, mainly as an external finishing element of air exhaust ventilation. It is installed on the outside of the building, where gravity shutters help prevent reverse air flow.

During installation, the external size of 400 × 400 mm, the internal frame size of 350 mm, the depth of 25 mm and the spacing of the fixing holes of 336 mm must be taken into account. The grille has 4 fixing holes with a diameter of 4.8 mm.

Frequently asked questions

For what fan size is the grille intended?

The grille size is intended for a Ø350 fan.

Do the shutters prevent air from returning?

Yes. Gravity shutters prevent air from returning, while also protecting the interior from external impurities and reducing heat losses.

What materials is the grille made of?

The frame is made of metal with a polymer coating, while the shutters are made of durable PVC. The colour of the grille is grey.

Conclusion

The grey external grille with gravity shutters is a practical finishing element for air exhaust ventilation, suitable for a Ø350 fan and ventilation, heating and air conditioning systems.