What does FJM mean in the construction drawing?

FJM is the fire shutter door in the construction drawing.

Fire shutter door is a kind of fire-proof and heat-insulating facility suitable for large opening in buildings. This product has played a certain role in design and installation. Fire shutter doors are indispensable fire protection facilities in modern high-rise buildings. Fire shutter doors not only have the functions of ordinary doors, but also have special functions such as fire prevention, smoke isolation, fire prevention and evacuation protection. The area calculation of fire shutter doors shall be carried out in accordance with the national standard "Budget and Final Accounts of Construction Projects".

The types of fire shutter doors mainly include composite steel fire shutter doors (fire prevention and smoke prevention), inorganic super-grade fire shutter doors (double-track and double-curtain), steel composite water jet water mist fire shutter doors, steel composite lateral fire shutter doors, steel composite horizontal fire shutter doors, inorganic super-grade folding fire shutter doors and various curtain-type middle door fire shutter doors.

Extended data:

Installation and use of fire shutter doors;

1, ventilation pipes and water pipes shall not be set at the upper part of the hole where the shutter door is installed.

2. After the shutter door is installed, install the ceiling, and the edge of the ceiling is 50mm away from the curtain plate to avoid friction.

3, debugging and use, it is forbidden to stand at the bottom. Do not dismantle electrical facilities without authorization.

4, according to the provisions of the fire management.

5. In the routine fire safety inspection every quarter, the chain lubricating oil for starting the motor must not be missed, which is also an important link missed by many property rights units or fire control units in the inspection.

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