CNC numerical control parts_back-fire check valve antidim light

Where is the installation position of the fire valve?

1. The pipe to install the smoke exhaust fire valve should pass through the fire protection zone.

2. In the smoke exhaust zone, the fire valve should be installed on the smoke exhaust pipe.

3. If the pipeline of the fire valve is slightly deformed, it should be installed on both sides of the position through the deformation joint.

4. If there is both a horizontal air duct and a vertical air duct, it should be installed in the horizontal pipe section at the junction of the two pipelines.

5. In the mechanical system, it should be installed at the entrance of the smoke exhaust fan room.

6. In life, in the small places of kitchen, bathroom and toilet, smoke exhaust fire valve should be installed on the branch pipe of vertical exhaust pipe without taking measures to prevent backflow in the pipeline