External Ventilation Grille with Gravity Shutter 549 x 549 mm, Harmann

Quick Facts — GSP-500 Gravity shutter

• Model: GSP-500
• Type: Gravity exhaust
• Outer dimensions: 549 x 549 mm
• Installation diameter: 500 mm
• Material: UV-resistant ABS plastic
• Colour: RAL 7012/7016

External ventilation grille with gravity shutter for wall mounting in a vertical position, outer dimensions 549 x 549 mm and installation diameter 500 mm, from Harmann. The louvres open with the air stream through the shutter, and the shutter also works as a non-return valve.

The housing is made of UV-resistant and mechanically durable ABS plastic. The shutter protects the ventilation duct from weather, limits backdraught and reduces heat loss.

When does gravity shutter GSP-500 make the most sense?

The shutter suits duct terminations in the facade where no motorised damper is needed. The louvres are controlled by airflow alone, which keeps installation simple and operation quiet.

The benefits in operation are:

• protection of the duct from weather
• reduced energy losses
• no backdraught
• easy cleaning

Is gravity shutter GSP-500 suited to private and commercial settings?

Yes, the shutter is intended for both residential and commercial use. The condition is sufficient airflow: the opening angle follows the air speed through the shutter, and at too weak a flow the louvres do not open fully.

Technical Specifications

Used by: Ventilation fitters, building technicians, HVAC installers, building contractors.

Common in: Ventilation and HVAC installation, property management, new construction, industrial premises.

Frequently Asked Questions (FAQ)

Is gravity shutter GSP-500 suitable for ducts with weak airflow?

No, not if the flow is too low. The opening angle of the louvres depends on the air speed through the shutter, and at insufficient flow they do not open fully. The shutter has outer dimensions of 549 x 549 mm and an installation diameter of 500 mm.

How does gravity shutter GSP-500 differ from other ventilation grilles?

It has moving louvres that open with the air stream and thereby act as a non-return valve, unlike a fixed grille. The housing is UV-resistant ABS plastic in RAL 7012/7016.