Does the embedded pipe of the pool need to be jacketed?

Function of casing: If waterproof is required, waterproof casing must be added when crossing the pool and outdoor wall; Casing is generally needed to prevent the service life of the pipeline caused by thermal expansion and contraction, and to prevent condensation from flowing along the pipe wall. This generally refers to water supply pipes, hot water pipes, heating pipes and fire pipes. For drainage and rainwater pipes, if there are no special requirements (waterproof requirements or dew prevention, etc.). ), generally do not add.

wall bushing

Also known as through-wall pipe, waterproof casing and wall embedded pipe, waterproof casing is divided into rigid waterproof casing and flexible waterproof casing. The two are mainly used in different places. Flexible waterproof casing is mainly used in places with high requirements, such as civil air defense walls and pools, while rigid waterproof casing is generally used in places where pipelines need to pass through, such as basements.

Flexible waterproof casing is a kind of hardware fittings suitable for structures with vibration or strict waterproof requirements at the pipeline wall. General production enterprises manufacture according to S3 12 and 02S404 standard atlas developed and designed by the Institute of Building Science. For the wall where the flexible waterproof casing passes through the wall, the concrete wall should be used in the case of non-concrete, and the casing must be solidified in the wall at one time; Flexible waterproof casing is widely used in construction, chemical industry, steel, tap water, sewage treatment and other units.

Rigid waterproof casing is a kind of steel pipe with wing ring (the steel pipe is covered with a ring made of steel plate), which is installed in the wall (mostly concrete wall) and is used for general pipes to penetrate the wall, which is beneficial to the waterproof of the wall. In addition to the outer wing ring, there are retaining rings and the like inside the flexible waterproof shell. Flange inner wires are sold in complete sets or can be processed by themselves, and are used for pipelines that need shock absorption, such as pipelines connected with water pumps.

Flexible waterproof casing and rigid waterproof casing are both hardware fittings used for pipelines to pass through buildings with vibration or strict waterproof requirements, and are often used in construction, chemical industry, steel, tap water, sewage treatment and other units.

Jiuzhoutong warmly reminds you of the common method of installing wall bushing: "Installation with civil works"

-When the pipeline passes through the concrete shear wall foundation, beam and special-shaped column, it shall be installed together with the civil works. The reason is that the secondary pouring between casing and concrete is not easy to handle after the reserved holes are reserved; Some of them can't be handled, such as installing rigid through-wall sleeves on the concrete shear wall of basement foundation.

"Install before installing pipes"

-When the pipeline passes through the concrete floor and ordinary brick wall, holes are generally reserved in the concrete floor, and ordinary brick walls can be drilled through the holes. On the floor, before installing the pipe, put down the wire and install the sleeve. Draw lines on brick walls, plant supports, find slopes and install casings.