Rigid waterproof casing is a steel tube with a wing ring (a ring made of steel plate is sleeved on the steel tube), installed in the wall (mostly concrete wall), used for general pipelines to penetrate the wall, which is beneficial to the waterproof of the wall.
In addition to the outer wing ring, the flexible waterproof casing also has a retaining ring inside. The flange inner wire is sold in a complete set or can be processed by yourself. It is used for pipelines that require shock absorption, such as pipes connected to water pumps. Wall time. It is mainly used in different places. Flexible waterproof casings are mainly used in places with high requirements such as air defense walls and pools. Rigid waterproof casings are generally used in basements and other places where pipes need to pass through.
Rigid waterproof casing pipes shall be installed when the pipes entering the home from underground pass through the outer wall of the building.
Casing through walls (pools, plates, etc.). Divided into two kinds of rigidity and flexibility. After the installation is completed, deformation is allowed---flexibility; deformation is not allowed---rigidity.