Flexible waterproof casing

 Waterproof casing protective pipes being damaged pipeline installation, and maintenance of the pipeline to facilitate cased water room, as well as some water infiltration, flow, drip effect to prevent the underlying, but also can prevent cross-contamination, so wear floor office plus 02S404 waterproof casing, then what is the point? First, the pipeline through the floor, some construction workers to facilitate easy, without civil formwork, it was blocked after simply filling holes with cement mortar, combined with hard PVC pipe outer relatively smooth, with a concrete bond is not very strong, so it is likely to cause serious floor seepage phenomenon, affecting normal household use. The correct approach is: pre-cased, pipeline installation should end with civil conduct formwork, and should be used at the second C20 fine aggregate concrete pouring pound dense. After pouring over, combining screed or surface construction, masonry around the pipe thickness should not be less than 20 mm, a width of not less than 30 mm of water blocking laps. Secondly, when pipes pass through walls and floors a metal casing (outer wall) or plastic sleeve, the sleeve is installed in the floor of the top floor should be higher than 20 mm decorative, installed in the bathroom and kitchen sleeve top decorative surface should be higher than 50 mm, and the bottom of the sleeve should be flat with the bottom surface of the floor; casing is installed in the walls of its ends and finish with flat, passing between the floor of the sleeve and the pipe slit application retardant compacting Materials and waterproof ointment infill and end surface smooth; the gap between suitably dense material retardant wall bushing and the pipe infill and face should be smooth, the interface pipes shall not be located within the sleeve. Also known as waterproof casing wall bushing, wall pipe; flexible waterproof casing pipe through the wall are generally applicable to the Department by vibration or water tight structures required, after the sleeve portion of processing is completed, both in its outer wall brush primer again (including primer Zhang Dan or cold base oil). External corrosion is determined by the design. Casing wear wall at the wall, when in case of non-concrete walls instead of concrete walls, pouring concrete its scope should fly wing to wing ring diameter (D6) large 200mm, and must be solid casing and poured walls. Concrete thickness of the wall through tube should be not less than 300mm at it or should make the walls thicker side or both sides of the thickened. The minimum diameter of the thickened portion should fly wing to wing ring diameter (D6) large 200mm. The material is based on the weight of the casing wall thickness 300mm L is calculated, such as thickness of the wall is greater than 300mm should be calculated separately. Casing parts welding materials, materials with A3, T42 welding. Finally, through the floor of the rigid waterproof casing plus during pipe installation, the range of the operator's use of space is large, it can freely use. Users check after repair, and replacement of the pipeline (to life, etc.), the operator is very limited space. Only use pipe supports, and temporarily fixed casing pipes, the appropriate action. Meanwhile, the casing is set, and also avoid the replacement pipe, the destruction of the living room decoration, if not set casing, during the operation, it will be in the pipeline over the wall of the site, resulting in damage to the wall.