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Anonymous users2024-01-23When the plastic pipe of building drainage passes through the firewall or tube well on the floor, the fire arresting device should be set according to the nature of the building, the pipe diameter and setting conditions, and the fire rating of the crossing part.
1. For plastic drainage pipes with a nominal outer diameter greater than or equal to 110mm in high-rise buildings, fire arresting rings, fireproof sleeves or fire arresting tapes should be set up in the following parts to prevent the spread of fire:
1) Risers without pipe wells or pipe holes are at the penetration point through the floor.
2) The transverse pipe passes through both sides of the fireproof partition wall and the firewall.
3) When the horizontal pipe is connected with the pipe well or pipe hole in the pipe hole, it passes through the penetration part of the pipe well or pipe hole.
2. The drainage riser of public buildings should be located in the pipe well, when the area of the pipe well is greater than 1m2, every 2 or 3 layers should be combined with the sealing of the pipe well to take anti-flame protection measures such as fire retardant ring or fireproof casing.
3 The fire resistance limit of the fire arresting device should not be less than the fire resistance limit of the building structure at the penetrating part.
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Anonymous users2024-01-221. For plastic drainage pipes with a nominal outer diameter greater than or equal to 110mm in high-rise buildings, fire arresting rings, fireproof sleeves or fire arresting tapes should be set up in the following parts to prevent the spread of fire:
1) Risers without pipe wells or pipe holes are at the penetration point through the floor.
2) The transverse pipe passes through both sides of the fireproof partition wall and the firewall.
3) When the horizontal pipe is connected with the pipe well or pipe hole in the pipe hole, it passes through the penetration part of the pipe well or pipe hole.
2. The drainage riser of public buildings should be located in the pipe well, when the area of the pipe well is greater than 1m2, every 2 or 3 layers should be combined with the sealing of the pipe well to take anti-flame protection measures such as fire retardant ring or fireproof casing.
3 The fire resistance limit of the fire arresting device should not be less than the fire resistance limit of the building structure at the penetrating part.
1. Acceptance of concealed projects.
The acceptance of the toilet should follow the principle of "horizontal and vertical". For example, when the gas pipe and the water supply pipe are laid in parallel, the distance cannot be less than 50mm, and the distance between the cross laying cannot be less than 10mm. During the installation of the hot water pipe, it should be installed on the left side of the cold water pipe, and the distance between the two should be greater than 30mm. >>>More
Bathroom waterproofing requirements are very important, waterproofing is not done well, not only will bring trouble to yourself but also to the residents downstairs, so when doing bathroom waterproofing, it is necessary to be strict. So what are the waterproof requirements for professional toilets? What are the requirements of the waterproof acceptance specification? >>>More
Be sure to do a good job of drainage. 1. The water pipe is a hidden project, and the size of the water pipe must be considered more comprehensively when arranging the size of the water pipe, or it is not easy to use in the later stage, and it is more troublesome to maintain. Toilet drain pipe size: The inner diameter of the sewer pipe is 100mm to 3000mm, and the length is 30mm to 200mm. >>>More
If you can, buy some household waterproof paint, Goljia's JS waterproof paint, and then follow the instructions to fill the leakage, which is very simple.
The bottom of the riser pvc110 tee is 30-35 cm away from the top plate surface, the expansion joint is installed below the tee, the floor drain and shower are all using the S bend with a cap, the basin is installed with a 90-degree cap elbow, and the S bend can be deodorized when installing the basin on this floor, and the kitchen sink drainage branch is installed on this floor, and the P bend with a cap is directly installed, I hope it can help you. It should also be noted that the smaller the distance between the tee and the top, the greater the net height of the bathroom.