Generally, the wall thickness of wall casing is not considered. Does that mean that the thickness of high pressure wall casing does not need to be regulated? Actually no, there are regulations for those that have specific requirements.
Thickness of wall casing, if specific requirements, such as thickness δ=6mm, 4.5, 4..... And so on a variety of specifications, in accordance with the specific requirements of the construction, the general 150mm tube δ=4.5mm can be done, the back of the decline one by one, but the general supervision will be checked, so you can appropriately use some thicker a specification. As for the size of the wall, as long as it is determined by the thickness of the shear wall, it is generally not more than 2cm. In this way, when the civil construction is poured, it is likely to seal off your hole, and then it will be afraid to find it, so the early work will be OK.
High pressure wall casing thickness Buy professional pipe fitting, at least dr1-150 bore thickness. Specification: The inner space should be left 1CM away from the inner space. The method of filling the inner space with flexible filler of oil hemp paste is used. The aperture of the high pressure wall piercing casing should be at least 5mm larger than the embedded part, and the thickness of the concrete mounting plate should not exceed 50mm.
