Doors & doors system [india] private limited offers the promaseal bulkhead system. It prevent spread of smoke and fire from penetrating a fire compartment through openings as a result of services penetrations. It is tested for fire rating for up to 4hrs as per bs 476 part 20/ as 1530 part4. The system will have to be supported by a valid international / national test report of the complete system as per bs 476 part 20. These are mainly applied for service shafts e&m voids . These are also used in services above ceiling.
