Metal external grille with gravity shutters 550 × 550 mm for Ø450 or Ø500 fan, grey

External protection for exhaust ventilation with gravity shutters

The metal ventilation grille is intended for installation on the outside of a building as part of an exhaust ventilation system. Gravity shutters help prevent air backflow, protect the interior from external impurities, and reduce heat loss.

Main advantages

• Gravity shutters open during air exhaust and help prevent backdraft.
• For external installation suitable for mounting on the outside of a building.
• Durable design the frame is made of metal with a polymer coating, and the shutters are made of durable PVC.
• Suitable size the outer size of the grille is 550 × 550 mm, and it is intended for a fan Ø450 or Ø500.
• Grey colour provides a neutral appearance on the facade or another external surface.

Use and installation

The grille is used in ventilation, heating and air conditioning systems, mainly where a protected external finish for exhaust ventilation is required. It is intended for a fan Ø450 or Ø500.

When installing, observe the outer dimension of 550 × 550 mm, the inner frame dimension of 500 mm, the depth of 25 mm and the spacing of the fixing holes of 486 mm. The grille has 4 fixing holes with a diameter of 4.8 mm.

Frequently asked questions

Which fan is this grille suitable for?

The grille size is intended for a fan Ø450 or Ø500.

Do the gravity shutters prevent air backflow?

Yes. Gravity shutters prevent air backflow, protect the interior from external impurities, and reduce heat loss.

What materials is it 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 550 × 550 mm grille is a practical external finish for exhaust ventilation for a fan Ø450 or Ø500, with gravity shutters to limit air backflow.