Details of the flexible waterproof casing material

Waterproof casing material generally use carbon steel, known as Q235 cast steel, stainless steel, 304 material, etc. The choice of waterproof casing material can be selected according to the installation conditions, which is for the wall that does not require high, with ordinary waterproof casing can be, not only can be well used, but also can save a lot of unnecessary waste.
Rigid waterproof casing is a casing applicable to water supply and drainage pipes. Rigid waterproof casing is a steel pipe with five small holes respectively through the wall, generally used for water supply and drainage pipelines, such as: industrial pipelines in the drainage pipeline. Scope of use of flexible waterproof casing: installation of waterproof casing in the pipeline for the installation of waterproofing in the pipeline to prevent blockage of the pipeline. Flexible waterproof casing is manufactured in accordance with the standard production of rigid waterproof casing, it has many different materials, how should we distinguish it?
The wall thickness of the casing is generally 5 mm and 12 mm. To ensure waterproofing, the thickness of the casing should match the requirements of the building. Flexible waterproof casing can be divided into three grades: stainless steel, silicon steel, manganese steel. The best stainless steel rigid waterproofing sleeve wall thickness is 7 mm, the best manganese steel rigid waterproofing sleeve wall thickness is 4 mm. in the building, many times need to use the casing material. Although many people are aware of it, there are problems such as improper use of casing.
Casing is not required when installing pipes. Casing through walls or openings. In the building, the pipe can not go through the wall, otherwise it will cause serious consequences and affect the pipe, so care should be taken to install the pipe diameter of the steel pipe should not be larger than the diameter of the casing. Steel pipe thread diameter should be 1.5 times of the thread diameter, and pipe thread diameter should be 2 times of the thread diameter. Steel pipe threads should be effectively threaded. The inner wall of flexible waterproof casing is oiled not plastic. Its main components are polyethylene and polyvinyl chloride, which are insoluble in water and insoluble in organic solvents or chloroform. However, polyethylene has good heat and corrosion resistance, and compared with metal, it also has good chemical resistance and mechanical properties. It also has good resistance to low temperature. The anti-corrosion treatment is black or yellow-brown after oiling, and there will be no black-brown spots or rust stains.