Flexible waterproof casing, rigid waterproof casing, 02S404 waterproof casing

The waterproof casing protects the pipeline from damage and is convenient for installing and repairing pipes in rooms with water. It also has a certain function in preventing water from seeping into the lower floors. It can also prevent cross-contamination, so add a waterproof casing where it penetrates the floor. What's the point?
First of all, after the pipe passes through the floor, some construction workers do not perform civil construction formwork for convenience and trouble, but simply block it and fill the hole with cement mortar. In addition, the appearance of the hard polyvinyl chloride pipe is relatively smooth and is bonded to the concrete. It is not very strong, so it is very easy to cause serious water seepage in the floor, affecting the normal use of residents. The correct approach is to add casing in advance. After the pipeline installation is completed, formwork should be carried out in conjunction with civil engineering, and fine stone concrete should be poured and compacted in two stages. After the pouring is completed, combined with the construction of the leveling layer or surface layer, a water-blocking ring with a thickness of not less than 1 mm and a width of not less than 1 mm should be built around the pipe.
Secondly, when pipes pass through walls and floors and are equipped with metal casing exterior walls or plastic casings, the top of the casing installed in the floor should be millimeters higher than the decorative floor. The top of the casing installed in the bathroom and kitchen should be The top should be millimeters higher than the decorative floor, and the bottom of the casing should be flush with the bottom of the floor. The two ends of the casing installed in the wall should be flush with the finish. The gap between the casing and the pipe passing through the floor should be made of flame-retardant dense material. The gap between the wall casing and the pipe should be filled with waterproofing ointment and the end face should be smooth. The gap between the wall casing and the pipe should be filled with flame-retardant dense material and the end face should be smooth. The interface of the pipe should not be located in the casing.
Waterproof casing is also called wall-through casing. Wall-through flexible waterproof casing is generally suitable for structures where the pipe passes through the wall and is subject to vibration or has strict waterproofing requirements. After the casing part is processed, it is The outer walls should all be primed with a primer including camphordan or cold primer. The anti-corrosion of the outer layer is determined by the design. If the wall where the casing passes through the wall is a non-concrete wall, a concrete wall should be used instead. The concrete pouring range should be larger than the diameter of the wing ring, and the casing must be poured into the wall. The thickness of the concrete wall where the pipe passes should be no less than that of the pipe. Otherwise, the wall should be thickened on one side or both sides. The minimum diameter of the thickened portion should be larger than the diameter of the wing ring. The material weight of the casing is calculated based on the wall thickness. If the wall thickness is greater, it should be calculated separately. Casing parts welding materials, made of materials, welded.
Finally, when installing a rigid waterproof casing at the floor penetration, the operator has a large space utilization range and can use it freely. The operator's space is very limited for repairs after the user moves in and pipe replacement until the service life is reached. Pipe supports and casings can only be used to temporarily fix the pipes and perform corresponding operations. At the same time, the setting of the casing can also avoid damage to the indoor decoration when the pipe is replaced. If the casing is not installed, the wall will be damaged when the pipe passes through the wall during the above operations.