Maglok®

• Maglok® is a patented device which eliminates the annoying banging of butterfly shutters on ‘HC’, ‘SS’ and some New Generation style vertical discharge axial roof ventilators.
• It also helps protect against rain ingress due to stack effect or wind action that may cause the shutters to lift open when the fan is not running.
• They provide positive closure on various butterfly shutters.
• It features a compact size and has no moving parts.
• It is unaffected by heat and moisture.
• Depending on what holding force is selected, protection can be provided to the same integrity as the roof structure according to the requirements of AS1170.2 Wind Load Code.
• They are ideal for installations in high wind areas or on buildings where the internal pressure, or stack effect causes the shutters to open when the fan is not running.

Construction

Maglok-2 and Maglok-5 utilise a specially selected rare earth magnet that is three and half times more powerful than ferrite.
The housings are constructed from corrosion resistant aluminium, incorporate stainless steel adjustment screws and have long life corrosion protected striker plates.