What are the national standards for flexible waterproof casing?

The flexible waterproof casing is suitable for areas with first-class fortification requirements, and the pipeline passes through the wall to withstand vibration and pipeline expansion and deformation, or structures (buildings) with strict waterproof requirements.

The implementation standard of flexible waterproof casing is the national building standard design atlas 02S404, approved by the Ministry of Construction of the People's Republic of China, and compiled by the China Building Standard Design and Research Institute on December 1, 2002, this atlas is based on the Ministry of Construction No. 202 "Notice on Printing and Distributing the 1999 National Standard Design Preparation Work Plan", and the S312 "Waterproof Casing" prepared in 1975 was revised and completed. The release of the 02S404 standard also replaces the S312 waterproof casing standard almost at the same time.

07MS101 is a compilation atlas, the atlas compilation was formulated on December 1, 2007, in which the content of 07MS101-5 waterproof casing is extracted from 02S404, the overall dimensions and thickness of the product are no different, so 07MS101-5 flexible waterproof casing and 02S404 flexible waterproof casing are the same.

Henan Hengsheng pipeline manufacturing waterproof casing series products are: 02S404 flexible waterproof casing, 07MS101-5 waterproof casing, 02S404 rigid waterproof casing, 07FS02 air defense basement water supply and drainage facilities installation atlas air defense basement airtight casing, 07FD02 air defense basement electrical equipment installation atlas electrical casing, 07FK02 air defense basement ventilation equipment installation atlas ventilation casing, S312 waterproof casing, hot-dip galvanized waterproof casing, extended waterproof casing, Double-sided sealed flexible waterproof sleeve.

What are the components of the flexible waterproof sleeve and what are the requirements for installation? The main components are casing, pressure plate, flange, retaining ring, waterproof wing ring, flange inner wire. Generally, it is suitable for structures that are subject to vibration or have strict waterproof requirements where the pipe passes through the wall, and is used for pipelines that need to absorb shocks.

Flexible waterproof casing is mainly used in civil air defense walls, pools and other places with high requirements. Deformation is allowed after installation. After the flexible waterproof casing and its components are processed centrally, they are transported to the installation site for installation.

Installation requirements for flexible waterproof casing 1) Lower pipe: The pipe should be lowered to the bottom of the groove according to the technical requirements of the press, and the mechanical lower pipe method should be adopted. 2) Clean the nozzle:

All debris in the socket should be removed and scrubbed clean, as any buildup may cause the joint to leak. 3) Clean the rubber ring and upper rubber ring: the adhesive on the rubber ring should be wiped clean, the rubber ring should be bent into a "plum blossom shape" or "8" shape into the socket groove, and pressed along the entire rubber ring by hand, or smashed with a wooden hammer and rubber hammer to ensure that all parts of the rubber ring are not warped or twisted, and are evenly stuck in the groove.

4) Brush the lubricant on the outer surface of the socket and the rubber ring: the lubricant can be used with vegetable oil, and the lubricant should be evenly brushed on the inner surface of the rubber ring installed at the socket, and all the socket parts outside the socket line should be brushed evenly when the lubricant is applied on the outer surface of the socket. 5) Push the pipe to insert it into the socket

During installation, first put the socket into the socket and press the socket to the rubber ring in the socket, connect the wire rope and the inverted chain, tighten the inverted chain, and at the same time, shake the pipe vigorously left and right at the end of the socket. Until the socket is inserted into the socket and all is in place. When installing, the axis line should be in a straight line to avoid the rubber ring ejecting and affecting the installation.

6) The installation of the waterproof casing should be flat, and the pipes should be in a straight line, and when there is an inclination, it should be laid from low to high, and the socket should be in the direction of high. 7) Installation of pipe fittings: the method of double inverted chain parallel force is adopted to make the pipe fittings installed in parallel.

8) During the laying construction, the end of the pipe should be installed with a temporary end plate after the end of the day, and attention should be paid to prevent the soil and sand from flowing into the waterproof casing. 9) After the interface operation is completed, before backfilling, avoid water accumulation in the pipe trench and prevent the pipe body from floating. 10) Check:

Check whether the position of the socket socket meets the requirements: use a probe (or steel plate ruler) to extend into the socket gap to check whether the rubber ring is in the correct position.

What are the specifications and models of flexible waterproof casing?

The specifications and models are DN50, DN80, DN150, DN200 and so on, and the specifications used should be determined according to the size of the steel pipe, and the size of the waterproof casing is usually larger than the size of the steel pipe. For example, 219 steel pipe should use DN200 casing, and when passing through the middle of the waterproof casing, the sealing ring should be bolted tightly with compression bolts, so as to make them more sealed.

Flexible waterproof casing.

Flexible waterproof casing.

What does a flexible waterproof casing do?

1. Protect the pipeline from being damaged.

This can prevent the surface of the pipeline from being damaged somewhat, especially when it is pressed to the pipeline by some heavy objects, after installing the casing on this surface, it can also play a protective role in the pipeline, so in the pipeline crossing the road, in order to prevent these from being crushed by the vehicle, it is usually a casing that will be installed.

2. It is convenient to install and maintain pipelines.

After installing the casing, it is also to facilitate the maintenance of the back, do not replace the pipe, this can also reduce some damage to the wall, but also to prevent the leakage of the water pipe, but also to protect the water pipe more effectively, and at the same time to prevent the leakage of the wall from being affected.

3. Prevent water seepage and ground leakage.

The water pipe in the kitchen and bathroom should also be equipped with a casing, which can also prevent the water pipe from bursting, which may cause the bathroom to leak.

4. Prevent cross-contamination.

After the casing is installed on the water pipe, this can also prevent the water pipe from being affected by the wall substance, and the water pipe in the wall must be protected to prevent the water pipe from being corroded. To a certain extent, it can also protect this water source from pollution, providing a clean and environmentally friendly water source for the home. Molded dough.

In the construction industry, in addition to concrete and bricks, building materials are also indispensable hardware. Especially in waterproofing work, those who do construction know that anti-corrosion and waterproofing are the most important projects in the construction process, because it involves the life of the building. And to really carry out the waterproof work to the end, it is to use this flexible waterproof sleeve.

There may be outsiders who don't know what this is and how it is used. It's okay, let's popularize it for you.

Flexible waterproof casing is suitable for the pipe through the wall of the vibration or strict waterproof requirements of the structure of the hardware pipe fittings, the general production enterprises are based on the research and design of the S S404 standard atlas manufactured by the Institute of Building Research. The wall where the flexible waterproof casing penetrates the wall, if it is not concrete, should be replaced with a concrete wall. 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 thicket and other units.

Generally, when making a pool, a casing is used, which is the passage of the pipe to the pool. However, it is difficult to seal the ordinary casing, so that there will be water leakage between the casing and the pipe, and between the casing and the wall. Only the waterproof casing can solve the water leakage between the casing and the wall, but it cannot solve the sealing between the casing and the pipe, and the flexible waterproof casing can just solve two problems.

Casing can be divided into: ordinary casing - 2-4 cm thicker than the pipe to be used, fixed in the wall or slab, through which the pipe passes. Flexible casing - it is to seal the casing and the pipeline with flexible material to achieve a sealing effect.

Rigid casing - that is, the casing and the pipe are sealed with rigid materials to achieve the sealing effect. Waterproof casing - that is, the environment used for the casing is to prevent liquid leakage or leakage (such as pools, septic tanks, basements, etc.), that is, to add no less than 1 waterproof wing on the outer wall of the casing, so that the casing becomes a whole when poured into the wall, and will not leak due to cracks and contraction factors.

Precautions at the time of use:

1. The flexible waterproof casing is generally suitable for structures that are subject to vibration or have strict waterproof requirements where the pipeline passes through the wall.

2. For the wall where the casing passes through the wall, if it encounters a non-concrete wall, the concrete wall should be used instead, and the co-pouring concrete range should be 200mm larger than the diameter of the wing ring, and the casing must be poured into the wall at one time.

3. The dn size and wall thickness in the table can be produced according to the needs of users, please indicate the diameter, pipe outer diameter and wall thickness when ordering.

It turns out that the role of this flexible waterproof casing is so big, I really don't know it. It seems that in the construction project, there are still many problems worth studying, and many details are worth paying attention to. Especially in terms of waterproofing and anti-corrosion, after all, a building has been built with us, it can't be a one-time thing, it should have a life span of several decades.

Therefore, in the process of construction, the relevant construction units should pay more attention to not making any mistakes and be responsible for their own work.

You can get it for free

Drawings and drawings are available.

For example, to elaborate, there are many customers who will ask us if we need to use 273 flexible waterproof casing when they buy a flexible waterproof casing for the first time when they buy a 219 steel pipe? No, wear 219 steel pipe to use DN200 flexible waterproof casing, we manufacture flexible waterproof casing is manufactured in accordance with the 02S404 national standard atlas, DN200 flexible waterproof casing is made of 265mm (D2 size) steel pipe, flange pressure plate inner warp is 226mm (D3 size), 219mm working pipe in the middle of DN200 flexible waterproof casing, there is a gap between the outer wall of the pipe and the inner warp of the waterproof casing flange pressure plate, At this time, the sealing between the tube and the flexible waterproof sleeve is completed by pressing the bolt and squeezing the rubber sealing ring deformation. It is best to inform the manufacturer of the size of the working pipe when purchasing and using the flexible waterproof casing, so as not to install the later pipeline due to the error of the embedded caliber.

The flexible waterproof casing has good sealing, and the supporting pipeline is used, and the pipe can slide automatically in the casing, which is mainly used in civil air defense, pools, pipeline wells and other places with high sealing requirements.

When the rigid waterproof sleeve passes through the pipe or other cables, it is necessary to plug the leakage with other seals such as oil and hemp to plug the leakage, and the sealing is poor, so it cannot be used in places with high sealing requirements.

I don't know which kind of steel casing you are talking about, but the two types I know are made of steel, and they can be called steel casings.

There is also an oil-injected type, which is also made of steel, but the performance is much higher than the flexible waterproof casing with high requirements.