In the waterproof casing manufacturing method, the main welding method processing, because the material is different its scope of application is also different, so we in the choice of waterproof casing, the first thing you should understand is the main material and different materials in the performance of waterproof casing is also different, but basically are more or less the same, for waterproof casing in storage and other waterproof casing the same, should be kept in a cool Ventilation, and can not and corrosive gases or objects exist together, this is the need for special attention.
Waterproof casing is also called over the wall casing, the efficacy of the casing through the road, railroad, street community, etc., in order to avoid the pipeline by the load is crushed, and set up in the outside of the pipeline defensive casing. Due to the different natural environment of the project construction, the selection of waterproof casing is also different. Commonly divided into two kinds of rigid and flexible. Flexible waterproof casing, applicable pipe through the wall where there is vibration or a strict moisture-proof provisions of the building hardware pipe.
Flexible waterproof casing through the wall of the wall, such as non-mixed earth to change to a mixed earth wall, be sure to casing once condensed in the wall; flexible waterproof casing is commonly used in engineering construction, chemical plants, steel, drinking water, wastewater treatment and other enterprises. Flexible waterproof casing in the production of its raw materials, the composition of the components of the thin and thick water pipe and flange piece specifications, all in strict accordance with the standard atlas to carry out production, including when the installation of which need to choose to plug the raw materials are all requirements.
Waterproof coating including asphalt waterproof coating, modified bitumen waterproof coating, synthetic polymer asphalt coating, etc., sealing materials are also divided into shaped sealing materials and non-shaped sealing materials. Flexible waterproof casing is a pre-built pipe used through the wall. The role of the flexible waterproof casing is the pipe through the wall, column, beam, hole, hole through the wall pre-buried, and has the role of waterproof, stop leakage, anti-settlement. The structure of flexible waterproof casing in addition to the external wing ring, there are internal gear ring and so on, rubber sealing ring, flange inner wire, etc..
