waterproof wall tube

Waterproof casing is also called wall casing, wall tube. Flexible waterproof sleeve is generally applicable to the pipeline through the wall of the place subjected to vibration or strict waterproof requirements of the structure, the casing part of the completion of processing, in its outer wall are brushed a primer (primer including zhangdan or cold base oil). Waterproof sleeve is divided into rigid waterproof sleeve and flexible waterproof sleeve. The two are mainly used in different places. The flexible waterproof sleeve is mainly used in places with high requirements such as civil air defense wall and pool, while the rigid waterproof sleeve is generally used in the place where pipelines such as the basement need to go through pipes.

Flexible waterproof sleeve is suitable for pipe through the wall of the place subjected to vibration or strict waterproof requirements of the structure of the metal pipe fitting, the general production enterprises are based on the building science research institute developed and designed S312, 02S404 standard atlas manufacturing. For the wall where the flexible waterproof sleeve goes through the wall, if it is not concrete, the concrete wall should be used instead. Flexible waterproof sleeve is widely used in construction, chemical industry, steel, tap water, sewage treatment and other units.

Rigid waterproofing casing is a steel tube with wing ring (made of steel ring set on the steel pipe), installed in the wall (mostly concrete wall), used for general pipeline wall, wall waterproof, and flexible waterproof casing in addition to the outer ring, internal gear ring, such as the flanges silk, has a complete set of sell, also can own processing, used to have a shock to line, such as pump and connecting pipe wall.

Both flexible and rigid waterproof sleeves are used to pipe through the vibration or strict waterproof requirements of the building walls of hardware accessories, often used in construction, chemical, steel, water, sewage treatment and other units.

Rigid waterproof bushing and flexible waterproof bushing is the most intuitive difference, the appearance is different, flexible waterproof bushing internal rubber stop ring, such as when used in the wall of the pool to prevent water leakage. Their installation length is not the same, the standard length of flexible casing is 300mm and the standard length of rigid casing is 200mm, but they have one thing in common is that they can be arbitrarily lengthened or shortened according to the needs of construction.

role：

"Protect the pipeline from damage"

-- plastic pipes need to be protected when crossing the floor.

For example, as mentioned above, the u-pvc drainage plastic pipe with casing is a protective measure to prevent the root of the pipe from being damaged by external forces. (plastic pipes are most afraid of damage from the root, because maintenance is difficult).

Similarly, for the plastic type of water pipe, the floor is equipped with casing, not only to consider the construction, or maintenance, but also to protect the root from damage. As we all know, the plastic type of water pipe casing, not necessarily through the floor, but, in the height of the floor has a clear requirement, the purpose is this. (see procedure content and detailed explanation).

When the building subsidence occurs, pass through the gap between the pipe and the pipe, so as to make up the difference between the pipe and the building subsidence, and reduce the pressure of the building on the pipe.

-- when the pipe passes through three joints (expansion joints, settlement joints and shockproof joints), in order to ensure that the pipe is not broken, twisted or distorted by uneven settlement on both sides of the three joints of the building, usually, a casing is also required. This type of casing often has special requirements. Can be customized according to design requirements.

-- when the geothermal coil opens the expansion joint set in the middle of the room, a casing shall be installed on the outside of the coil to protect the heat pipe.

"Easy installation and maintenance of pipes"

-- no need to say much about the casing pipe through the floor;

-- I'm afraid it is hard to imagine how the casing pipe passing through the inner wall of the building is beneficial to maintenance without experience.

When the pipeline is installed, the space utilization range of the operator is very large and can be used freely. After the user checks in, the maintenance, and the pipeline replacement (reaches the service life and so on), the operator's space is very limited.

Only pipe supports, supports, and sleeves can be used to temporarily secure the pipe for proper operation.

In the meantime, the setting of casing, still can avoid when changing conduit, the damage that decorates inside the bedroom -- if do not have casing, when doing afore-mentioned operation, can be in conduit crosses wall place, produce metope damage.

"There is a water chamber of the casing, there is a certain water to prevent infiltration, flow, drip to the role of the lower layer."

--" prevention "has two aspects. On the one hand, it refers to the improper reasons of the user in the decoration stage after the completion of the project, causing the running water to flow down the floor through the casing; On the other hand, after the user enters, the unexpected reason causes the tap water to flow down the layer through the casing. Moreover, the former often outnumber the latter.

There are two reasons for the flow of the lower layer. Second, although the height is enough, but the casing mouth seal is not strict.

Therefore, the specification has strict requirements on the height of casing:

Water room (kitchen, toilet, etc.), the height of the casing should be 50mm above the living ground, the plastic pipe casing should be 100mm above the living ground. And apply ointment seal tightly.

"Prevent cross-contamination"

-- when the indoor water supply pipe has to pass under the drainage pipe due to limited conditions, the water supply pipe must have a casing, and the length of the casing should not be less than the design requirement to prevent water pollution.

-- for outdoor water supply pipeline, the net distance from septic tank is less than the specification requirement due to the limitation of conditions, and a casing must be added in the water supply pipeline, and the length shall be according to the design requirements.

Commonly used types：

- pipeline crossing the place such as base, interior wall, floor, avoid pipeline (pressure pipeline, such as, water supply, heating, etc.) when used for building cause disturbance, facilitate at the same time of pipeline installation and maintenance, set, is greater than the installation of pipe diameter, material, installation and length to meet the requirements in pipeline crossing point such as the base, interior wall, floor short tube.

-- common casing, mostly made of welded pipe, both ends of casing should be cut mechanically (e.g., with toothless saw, etc.), and the wall thickness is not strictly required.