Metal external grille with gravity shutters 805 × 805 mm for Ø630 or Ø710 fan, grey

External grille for exhaust ventilation

The metal ventilation grille with gravity shutters is intended for installation on the outside of the building as part of an exhaust ventilation system. The 805 × 805 mm size is adapted for use with a fan Ø630 or Ø710.

Main advantages

• Gravity shutters: prevent air from flowing back and help reduce heat losses.
• Interior protection: the shutters protect the interior from external impurities.
• Metal frame: the frame is made of high-quality metal with a polymer coating.
• Durable shutters: the shutters are made of durable PVC.
• Adapted size: the grille is intended for a fan Ø630 or Ø710.

Use and installation

The grille is used in ventilation, heating and air conditioning systems, primarily as the external finishing element of exhaust ventilation. It is installed on the outside of the building, where the gravity shutters allow air extraction when air is flowing, and limit backflow when idle.

During installation, observe the external dimension 805 × 805 mm, the internal frame dimension 755 mm, the depth 25 mm and the mounting hole spacing 741 mm. The frame has 4 mounting holes with a diameter of 4.8 mm, and a central vertical crossbar on the back side.

Frequently asked questions

Which fan is the grille suitable for?

The grille size is intended for a fan Ø630 or Ø710.

Do the shutters prevent air from flowing back?

Yes, the gravity shutters prevent air from flowing back, protect the interior from external impurities 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 suitable choice for the external finishing of exhaust ventilation with fans Ø630 or Ø710, where preventing backflow and protecting the interior are important.