The difference between A type flexible waterproof casing and B type flexible waterproof casing.

Waterproof casing has the characteristics of high hardness, good sealing, high strength under pressure, anti-corrosion and durability. Pre-embedded waterproof casing in construction projects can make the living environment in the event of some leakage problems, a large degree of protection of the building structure, will not affect the basic building structure. Waterproof casing is widely used in construction, chemical industry, steel, water, sewage treatment and other units.
Flexible waterproof casing is suitable for areas with seismic requirements, pipeline through the wall to withstand vibration and pipeline expansion and deformation, or buildings with tight waterproofing requirements. Generally suitable for pipelines through the wall with vibration or waterproofing requirements of strict structure, for the need to damp the pipeline. Flexible waterproof casing is mainly used in places with high requirements such as man-proof walls and pools, where deformation is allowed after installation.
Flexible waterproof casing is divided into type A and type B.
Type A flexible waterproof casing is suitable for the inner wall of the building. Type A flexible waterproof casing generally uses a circular sealing rubber ring, while Type B flexible waterproof casing uses a trapezoidal sealing rubber ring, and the actual effect of moisture resistance is better than that of Type A.
B-type flexible waterproof casing construction and A-type is different from the internal retaining ring, the former using two ends of the casing within the welded retaining ring, the latter for the gland end welded retaining ring, B-type is mainly used for human defense walls, and very high requirements.
Waterproof casing bottom there is a certain difference, A-type flexible waterproof casing bottom no other sealing device, but for B-type, it is equipped with a metal material flat gasket at the bottom, mainly used for building exterior walls.