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The waterproofing sleeve is divided into flexible waterproofing sleeve and stiffness waterproofing sleeve. General actual specification according to the project construction design scheme to be clear, but if according to the standard atlas, specification is the total width of the flange, thin and thick. Regulation of waterproof casing wing ring: flexible waterproof casing is mainly used in pipeline engineering projects, and the key of the wing ring is to fix the pipeline. In the pipeline which must be fixed. Various installation of a flange, bottom pressure pipeline can be applied to the wire flange, 4kg above the working pressure of the application of welding welding flange. Add the sealing point in the middle of two flanges, and then tighten them with foot bolts. Whether it is flexible waterproof casing or stiffness waterproof casing is used to pipe through the vibration or there are strict waterproof provisions of the house building wall hardware accessories, common in engineering construction, chemical plants, steel, drinking water, wastewater treatment and other enterprises.

Flexible waterproof sleeve is applicable to the place where the pipe through the wall by the vibration or there is a strict waterproof provisions of the building metal pipe, general manufacturing enterprises are in accordance with the engineering academy of architecture research and development design scheme S312, 02S404 building map production. If the flexible waterproof sleeve goes through the wall, it should be changed to the concrete wall in case of non-concrete soil, be sure to condense the waterproof sleeve in the wall at one time; Flexible waterproof casing is widely used in engineering construction, chemical plant, steel, drinking water, wastewater treatment and other enterprises.