The difference between rigid waterproof casing and flexible waterproof casing.

1 . Flexible waterproof casing is mainly composed of flange shell, sealing ring, flange, wing ring, bolt and nut, the structure is complex. Flexible waterproof casing is a finished steel casing, using flexible waterproof casing, with flexible materials to plug the corrosion pipe and pipe to achieve sealing effect. Expanded waterproof waterproof pipe can play the role of both leak prevention and sealing. Expanded waterproof pipe is suitable for structures with strict requirements for waterproof structure, which usually need to vibrate or go through the wall. Flexible waterproof shells are mainly used in places with high requirements such as airproof walls and swimming pools, where deformation is allowed after installation.
 
2 . Rigid waterproof casing consists of steel pipe, trade ring and casing. Steel plate ring as a casing, installed in the wall as a concrete wall for the wall pipe, conducive to wall waterproofing. If you only consider the waterproof performance of the wall and the extent of the pipeline through the wall, without considering the displacement and deformation of the pipeline through the wall, you can choose solid waterproof casing. Solid waterproof casing is usually used in basements and other places where pipes pass through.
 
3 . Flexible waterproof casing is suitable for areas with seismic requirements. Pipe through the wall to withstand vibration and pipe expansion deformation, or the structure (building) has strict waterproofing requirements. type A-generally used for pools or internal blockage, type B for building exterior walls. General waterproofing requirements General waterproofing requirements, Type I is suitable for strict waterproofing requirements. Applicable temperature range:-20℃~+80℃.
 
4 . When the through-wall pipe is connected to the pump or booster equipment, a flexible connection should be set at the connection. Rigid waterproof casing is suitable for structural (building water casing, not subject to pipeline vibration and expansion deformation. For areas with seismic requirements, if rigid waterproof casing is used, a flexible connection should be set on the pipe entering the pool wall or building exterior wall. type A is applicable to steel pipes, type B, type C ductile iron pipes and cast iron pipes.