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Luo Ying tells you how to choose rigid waterproof casing and flexible waterproof casing in use

Time: 05-11 󰃯 Reading times: 1019 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: The rigid waterproof casing is a steel pipe with flange ring (the ring made of thick steel plate is sheathed on the steel pipe), which is installed in the wall (common concrete wall) to pass through the wall, which is conducive to the waterproof of the wall. In addition to the outer wing ring, there are also retaining rings inside the flexible waterproof sleeve. The flange inner wire is provided in a complete set

rigidity Waterproof casing It is a steel pipe with flange ring (the ring made of thick steel plate is sheathed on the steel pipe), which is installed in the wall (common concrete wall) to pass through the wall, which is conducive to the waterproof of the wall; Flexible waterproof casing In addition to the outer wing ring, there are baffle rings inside. The flange inner thread is sold by complete sets of equipment. It can also be produced and processed by ourselves for the pipeline with shock absorption, such as when the pipe connected with the water pump passes through the wall. In other words, if the waterproof characteristics of both sides of the wall are considered, the flexible waterproof sleeve should be used; if only the water-proof characteristics of both sides of the wall and the displacement and deformation of the pipe after the pipe passing through the wall are considered, the flexible waterproof sleeve can be used Rigid waterproof casing Flexible waterproof casing is mainly used in civil air defense wall, pool and other areas with high requirements. Rigid waterproof casing is generally used in basement and other places where pipelines should pass through the pipeline.
Viewed from the outside, the rigid waterproof casing is only composed of steel casing and wing ring, with simple structure. The flexible waterproof casing mainly consists of flange sleeve, sealing ring, flange pressure plate, wing ring, bolt and nut, with complex structure.
In use, the rigid waterproof sleeve is used in the wall of the building without bearing the pipe vibration and expansion deformation, and the general applicable wall thickness is 200 mm. The flexible waterproof sleeve is mainly used in the wall of the building with ground vibration requirements, bearing pipeline vibration and expansion deformation, and strict waterproof requirements, and the general applicable wall thickness is 300 mm, from the model and specification Rigid waterproof casing is divided into: type A, type B, type C, type A is applicable to steel pipe, type B is suitable for cast iron pipe and ductile iron pipe, flexible waterproof sleeve is divided into type A and type B, type A is used for internal and external walls of buildings, and type B is used for walls of buildings.
The rigid waterproof casing is welded with a water stop wing ring on the outer edge of the steel pipe, while the flexible waterproof sleeve is welded with three flange rings on the outer edge of the steel pipe. There are four turnbuckles on one side. A baffle is welded inside, and another rubber ring is added. A flange plate is made on the outer edge, four bolts are added on both sides, and a steel pipe is welded on the top of the head, For example, the higher the requirement of water seepage, the more water-proof.
Rigid waterproof casing is used when only waterproof requirements are required; flexible waterproof casing is used when there are not only waterproof requirements, but also shockproof and displacement resistant requirements. As we know, the structure of the two is different. For the two kinds of waterproof casing of the same specification, the flexible waterproof casing is more complicated and therefore more expensive.
Generally speaking, rigid waterproof casing and flexible waterproof casing are quite different from each other in appearance and application site. In use, we should select proper waterproof casing according to specific waterproof requirements and site.