02S404 Quality requirements for waterproof casing

02S404 waterproof casing thickness should not be less than 300.

If it is less than 300, the wall should be thickened on one side or on both sides, and the diameter of the thickened part should be at least d5+200.

The weight of 02S404 waterproof casing is calculated as L=300, if the wall thickness is greater than 300, it should be calculated separately.

02S404 waterproof casing generally passes through the wall where the structure is subject to vibration or strict waterproof requirements. After the processing of the 02S404 waterproof casing is completed, the outer wall of the waterproof casing is brushed with primer (the primer includes camphor or cold base oil). The corrosion protection of the outer layer is determined by design.

02S404 waterproof casing through the wall, if the non-concrete wall should be replaced with a concrete wall, the concrete pouring range should be 200mm larger than the diameter of the wing ring (D6), and the casing must be poured into the wall.

02S404: The thickness of the concrete wall at the pipe penetration of the waterproof casing should not be less than 300mm, otherwise the wall should be thickened on one side or both sides. The minimum diameter of the thickened part should be compared to the diameter of the wing ring (D6), and the material weight of the waterproof casing is based on the wall thickness L, and the value is 300mm, which should be calculated separately. 02S404 Waterproof Casing Parts Welding Material, Made of A3 Material, T42 Welding.

Flexible waterproof casing can be divided into two kinds of national standard and non-standard, the national standard is produced in accordance with the 02S404 atlas, and the non-standard is produced in accordance with the S312 atlas, the easiest way to inspect the standard of the waterproof casing is to weigh to see whether the weight required by the atlas is reached, if it cannot be reached, it is S312, of course, the thickness of the steel pipe also has a certain error, these can be limited, and the standard of S312 can be appropriately relaxed. It can also be customized according to the needs of users.

02S404 Waterproof sleeve, after the wing ring is shown in the table below.

02S404 is a new standard for waterproof casing compiled by China, and the length of the casing is determined according to the thickness of the wall.

Waterproof casing: The waterproof casing is a protective casing set on the outside of the pipeline when the pipeline passes through the railway, road, street, etc., in order to prevent the pipeline from being crushed by the load. Waterproof casing is divided into rigid waterproof casing and flexible waterproof casing.

The rigid waterproof casing is a steel pipe with a wing ring; In addition to the outer wing ring, the flexible waterproof sleeve also has a retaining ring and the like inside. 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. If the wall where the flexible waterproof casing penetrates the wall, if it is non-concrete, the concrete wall should be used instead, 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.

According to the 02S404 waterproof casing atlas specification, the standard length of the flexible waterproof casing is 300mm, and the standard length of the rigid waterproof casing is 200mm.

02S404 is an atlas with specifications for various casings.

02S404 waterproof casing and 02S312 waterproof casing are commonly used one, the casing on the market is non-standard, due to the difference: 02S404 waterproof casing is produced in accordance with the 02S404 waterproof casing atlas, flexible is divided into A type B type, rigid waterproof casing is divided into A type B type C, and S312 waterproof casing is produced in accordance with the 312 waterproof casing atlas, his waterproof casing has a kind of rigid type I type II type III type IV and other models, There are also waterproof wing rings, most of his waterproof sleeves are the same size as the 404 standard, but the inner diameter of individual calibers is smaller than that of 404, and the wall thickness is a little thinner than that of 404. Nothing else makes a big difference!

But in general, it does not affect the effect of its use.

It's pretty much the same, but the standard number is different.

The difference between 02S312 waterproof casing and 02S404 waterproof casing:

02S404 waterproof casing and 02S312 waterproof casing are commonly used one, the casing on the market is non-standard, due to the difference: 02S404 waterproof casing is produced in accordance with the 02S404 waterproof casing atlas, flexible is divided into A type B type, rigid waterproof casing is divided into A type B type C, and S312 waterproof casing is produced in accordance with the 312 waterproof casing atlas, his waterproof casing has a kind of rigid type I type II type III type IV and other models, There are also waterproof wing rings, most of his waterproof sleeves are the same size as the 404 standard, but the inner diameter of individual calibers is smaller than that of 404, and the wall thickness is a little thinner than that of 404. Nothing else makes a big difference!

But in general, it does not affect the effect of its use.