To ensure the long service life of waterproof casing, you need to know the following aspects.

1. Waterproof casing is divided into two types of flexible and rigid. Among them, flexible waterproof casing is suitable for areas with seismic rating, i.e., where the pipe passes through the wall to withstand vibration and pipe tension and closure, or the surface of a structure with strict moisture-proof provisions. When connected through the wall pipe to the pump or increase the access and import and export pipes of machinery and equipment, flexible joints should be provided at the joints.
 
2. National standard rigid waterproof casing is suitable for structures (housing construction) that pass through walls and do not bear the vibration and expansion deformation of the pipeline. According to the structure is divided into A-type rigid waterproof casing, B-type rigid waterproof casing seam steel pipe, B-type rigid waterproof casing and C-type rigid waterproof casing for ductile ink casting seamless steel pipe and cast iron drainage pipe. If a flexible waterproof wing ring is used, a flexible connection should be made around the swimming pool wall or building wall. Seamless steel pipe is suitable for all types.
 
3. The assembly part of the national standard waterproof casing should try to avoid deformation joints, deformation joints or two relatively close structures (housing buildings). For uniqueness, the choice is made according to the structure. When the material and diameter of the winding pipe exceeds the location of the local album, attention should be paid to the adjustment and adjustment of the structural form and specifications of the waterproof casing and the filler used in the gap.
 
4. Life pool waterproof casing, A-type flexible waterproof casing, its seal, polyurethane coating, maintenance coating, etc. should be non-toxic. When the flexible waterproof casing is exposed to corrosive substances, suitable anti-corrosion coating should be used according to the performance index of the material and anti-corrosion regulations.