Steel flexible waterproof conduit is a hardware fitting suitable for structures where pipes pass through walls and are subjected to vibration or have tight waterproof requirements. Generally, production enterprises design it based on the research and development of the Institute of Building ScienceMade from S312 and 02S404 standard drawings. The wall where the flexible waterproof conduit passes through should be replaced with a concrete wall if it is not concrete, and the conduit must be solidified inside the wall at once; Flexible waterproof conduit is widely used in construction, chemical, steel, tap water, sewage treatment and other units. Generally, a casing is used when making a water tank, which is a channel for pipes to connect to the water tank. However, ordinary casing is difficult to seal, resulting in water leakage between the casing and the pipeline, as well as between the casing and the wall. If only waterproof conduit is used, it can solve the water leakage between the conduit and the wall, but it cannot solve the sealing between the conduit and the pipeline. Flexible waterproof conduit can solve both problems.
Casing can be divided into: ordinary casing - thicker than the pipeline to be used2-4 centimeters, fixed inside the wall or board, with pipes passing through it. Flexible casing - refers to sealing the gap between the casing and the pipeline with flexible materials. Steel casing - refers to the sealing effect achieved by sealing the casing and pipeline with steel materials. Waterproof casing - refers to the environment where the casing is used to prevent liquid leakage or ingress (such as water tanks, septic tanks, basements, etc.). It is necessary to add at least one circle of waterproof wings on the outer wall of the casing, so that when the casing is poured into the wall, it becomes a whole and will not crack or leak due to expansion and contraction factors.

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