Intumescent Metal Duct Collars (Fire Rated for up to 2hrs) can be used where plastic ductwork penetrates fire compartment walls and floors to prevent the spread of smoke and fire.
These Quelfire QRS duct collars consist of a flexible galvaised steel shell which contains a graphite based intumescent material that reacts when exposed to heat to provide an effective insulation plug. This prevents smoke and fire passing through to the adjoining compartment.
Tested to temperature and pressure conditions of BSEN 1363-1: 1999 and the principles of BSEN 1366-3: 2009. Provide up to 2 hours fire rating.
Fire rated up to 2 hours
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2hrs fire rating to help prevent the sprea...
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