What is the difference between rigid waterproof casing and flexible waterproof casing?
Flexible waterproof casing is generally applicable to the pipeline through the wall where there is vibration or strict waterproofing requirements of the building; rigid waterproof casing is generally applicable to the pipeline through the wall where the general waterproofing requirements of the building;
Flexible and rigid waterproof casing through the wall of the wall, such as non-concrete walls should be replaced with concrete walls, and the casing must be solidified in the wall once; waterproof casing in construction, chemical industry, steel, water, sewage treatment and other units.
Rigid waterproof casing is steel pipe plus wing ring, installed in the wall, used for general piping through the wall, to facilitate the waterproofing of the wall; flexible waterproof casing in addition to the external wing ring, there are internal gear ring and so on, flange inside the wire, sold in sets, can also be processed by themselves, used for the pipe with the need for shock absorption, such as and pump connection when the pipe through the wall. That is, if you consider the waterproof performance of both sides of the wall, you should choose flexible waterproof casing; if you just consider the pipeline through the wall, without considering the thickness of the wall, the waterproof performance of both sides of the wall and the displacement of the pipeline deformation, you can choose rigid waterproof casing.
Rigid waterproof casing is suitable for pipeline through the wall does not bear the pipeline vibration and expansion deformation of the building, suitable for pipeline through the wall space is limited or pipeline installation before the building or pipeline updates. For areas with seismic requirements, such as the use of rigid waterproof casing, a flexible connection should be set up near the pipeline entering the pool wall or the building's exterior wall. type A for steel pipes, B,C for ductile iron steel pipes and cast iron pipes.
