Stainless steel flexible waterproof casing you know those?

Stainless steel flexible waterproof casing is divided into stainless steel flexible waterproof casing and stainless steel rigid waterproof casing according to its performance. According to the material is divided into steel waterproof casing and stainless steel waterproof casing. According to the length is divided into general waterproof casing and extension waterproof casing.
 
Stainless steel flexible waterproof casing is generally suitable for pipelines through the wall vibration or waterproofing requirements of strict structure. Casing is usually used in the construction of pools, which are pipelines leading to the pool. However, it is difficult to seal the ordinary casing, so water leakage will occur between the casing and the pipe, and water leakage will easily occur between the casing and the pipe wall. Only waterproof casing can solve the problem of water leakage between casing and wall, and cannot solve the problem of sealing between casing and pipe. Flexible waterproof casing can solve both problems.
 
So, what is the function of through-wall casing?
Protect the pipe from damage. Plastic pipes passing through the floor need protection. Pipes passing through foundation walls, and concrete shear walls are more common. Casing should also be installed to protect the pipe from passing through the gap between the pipe and the casing during building settlement, to compensate for the difference between the pipe and building settlement, and to reduce the building pressure on the pipe.