The CVT250 Pyrocheck Intumescent Fire Damper is a 250mm round damper designed to provide reliable fire protection in air transfer systems. Made from UV-stabilised UPVC, it offers lower airflow resistance than conventional designs, improving ventilation efficiency. In the event of a fire, the damper forms a complete seal within approximately five minutes, helping to contain the spread of flames and smoke. Independently tested to BS 476 Part 22 standards, it delivers a fire integrity rating of up to 68 minutes. This damper is ideal for installation in doors and partitions, making it a dependable choice for new build projects requiring certified fire safety solutions.