Metal external grille with gravity shutters 655 × 655 mm for Ø550 fan, grey

External exhaust ventilation grille

The metal external grille with gravity shutters is intended for installation on the outside of the building as part of an exhaust ventilation system. The size is adapted to the Ø550 fan, and the grey version provides a neutral appearance on the facade.

Main advantages

• Gravity shutters: prevent air from outside from flowing back into the ventilation system.
• Protection of the interior: the shutters help protect the interior from external contaminants.
• Lower heat losses: closed shutters reduce unwanted air exchange when the exhaust is not operating.
• Durable design: the frame is made of metal with a polymer coating, and the shutters are made of durable PVC.
• Adapted size: the grille with external dimensions 655 × 655 mm is intended for the Ø550 fan.

Use and installation

The grille is used in ventilation, heating and air conditioning systems, where an external termination of exhaust ventilation is required. It is installed on the outside of the building, in front of the system outlet.

During installation, the external dimensions 655 × 655 mm, the internal frame dimension 605 mm, the fixing hole spacing 591 mm and the depth 25 mm must be taken into account. The frame has 4 fixing holes with a diameter of 4.8 mm, and there is a central vertical crossbar on the rear side.

Frequently asked questions

Which fan is the grille intended for?

The grille size is intended for the Ø550 fan.

Does the grille prevent air from flowing back?

Yes, the gravity shutters prevent air from flowing back and reduce heat losses.

What materials is it made of?

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

Conclusion

The metal external grille with gravity shutters is a suitable choice for the external termination of exhaust ventilation for the Ø550 fan when you need protection against backflow of air and external contaminants.