At what stage of the project should the UGA sealing sleeve be installed

UGA is a cable duct through-wall sealing product for infrastructure projects, which needs to be pre-embedded in the project pre-embedding stage.

Fish, you will feel a sense of accomplishment. But in the process of fishing, it is inevitable to encounter some small fish that are very annoying. For example, the wheat ear fish, as soon as they appear, are a large group, and they are particularly good at grabbing food in the water, and if there are many wheat ear fish in the pond, then don't think about catching the big fish on the bottom.

There is also a fish, like the wheat ear fish, which is also very annoying, and some even call it the natural enemy of anglers. This kind of fish is more annoying than wheat ear fish, because wheat ear fish can be eaten as food, although wheat ear fish is small, but fried in oil, it is a good dish to drink. But this fish tastes so bitter that no one wants to eat it.

This fish is the trout, which is also called the little bream in some places, because it looks very similar to the bream, but it is much smaller in size, and it can be regarded as a mini bream. The trout is also considered an outlier among fish because its scales are colorful and look good when it shines in the sun. For anglers though.

It's useless to have a good appearance, at least you have to be able to eat, trout is so bitter that you can't eat it at all. In particular, its gallbladder is comparable to that of Coptis chinensis. Someone once caged a lot of trout in the ground, and after going home to squeeze out the bitter gall, they fried it in oil and prepared it for wine, but they didn't expect that its fish and meat were all bitter, and they couldn't eat it at all, so they had to feed it all to the cat.

There are too many domestic seal brands, it is recommended to choose imported brands, NOK, CFW, WKF, PARKER and so on.

This company is relatively chaotic in terms of domestic business, if you want to buy their things, go to their foreign language ** to take a look, it seems that there is no Chinese ** and information. If you have to use this kind of thing, you can choose the originator of this industry, the Swedish MCT Brattberg, who has Chinese** and Chinese materials.

UGA is the world's leading penetrating seal system for cables and pipes.

Founded in 1976 in Heidenheim, northern Germany, the company has developed cable and pipe penetration sealing solutions that have been unanimously praised by the construction industry, and these solutions are widely used in industrial plants, municipal facilities, power plants, chemical plants and many other fields.

There are two kinds of PE pipe casing, one is rigid casing, there is a gap when the PE pipe passes through the casing, and it can be filled with flexible waterproof materials such as asphalt oil hemp. A kind of flexible casing, there is a rubber sealing ring in the casing, after the PE pipe passes through the casing, the rubber sealing ring is pressed by tightening the bolt of the compression flange, and the PE pipe is squeezed after the rubber sealing ring is deformed, so as to achieve the waterproof effect.

If it is a rigid casing, it needs to be sealed later, and the asphalt hemp wire will do.

Specializing in the production of various specifications of waterproof casing, also known as wall casing, wall casing. The flexible waterproof casing is generally suitable for structures where the pipe passes through the wall and is subject to vibration or strict waterproof requirements. 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 civil air defense walls, pools and other places with high requirements, and rigid waterproof casing is generally used in basements and other places where pipelines need to wear pipes.

After the asbestos cement is filled, the source is filled, and the sealing paste is filled, bitumen, hemp silk, polystyrene board, and PVC foam board.

The rigid waterproof casing is made of a steel pipe or plastic pipe larger than the protected pipe to be 5-10 cm higher than the finished surface, and the sheath pipe and the protected pipe are filled with hemp wire and asphalt plaster; Waterproof, fireproof casing is made of steel pipe 5-10 cm higher than the finished surface, and the sheath pipe and the protected pipe are filled with special fireproof and waterproof plaster.

There is a full set of processes to solve this problem, which can be provided for reference for free!

Put in the flax silk first, and then tamp the two ends with asbestos cement.

Generally, the inner diameter of the casing should be greater than or equal to the outer diameter of the electric cable.

zhi150%。The higher the voltage level, the larger the inner diameter of the special sleeve. Casing with high ring stiffness grade should be used for crossing horse roads, under bridges, and under riverbeds; Special environments (e.g

chemical plants, power plants, etc.) should be selected with high ring stiffness pipes; Under the green belt, under the sidewalk, under the residential area, and under the non-carriageway of industrial and mining enterprises, the casing with less ring stiffness (i.e., the pipe wall is thinner) can be selected, which can save investment; If there is a special performance requirement for the casing, it must be explained to the manufacturer and produced according to the user's requirements.

Shanghai Baoyu wire and cable manufacturing **** for you to answer.

Generally, the inner diameter of the casing should be greater than or equal to 150% of the outer diameter of the cable. The higher the voltage level, the larger the inner diameter sleeve should be used. Casings with high ring stiffness grades should be used across the road, under the bridge, and under the riverbed; Special environments (e.g

chemical plants, power plants, etc.) should be selected with high ring stiffness pipes; Under the green belt, under the sidewalk, under the residential area, and under the non-carriageway of industrial and mining enterprises, the casing with less ring stiffness (i.e., the pipe wall is thinner) can be selected, which can save investment; If there is a special performance requirement for the casing, it must be explained to the manufacturer and produced according to the user's requirements.

Trench excavation.

According to the design requirements of the design unit, the trench excavation should be carried out, the bottom of the trench should be leveled and tamped, and then evenly laid with a layer of cement mortar with a thickness of 150mm for leveling. The uppermost casing should be greater than or equal to 700mm from the ground, and the width of both sides of the casing should be 200 300mm.

Casing installation. The length of the casing is generally 6m, and in principle, the average spacing of the pipe sleeper is about the left, and the pipe sleeper is not greater than the end of the pipe. The casing is installed in layers according to the construction drawings. Two people can work together at both ends of the discrete casing, install the sealing ring provided by the casing manufacturer at the casing flaring part, and apply soapy water or water-based lubricant on the inner wall of the sealing ring and the outer wall of the casing insertion end, and prohibit the use of lubricating oil for lubrication!

The two people work together to use the intubation machine to insert the tube into the limit line, or you can use a large wooden board to pad the other end of the casing, and use a sledgehammer to evenly knock on the tube to insert the tube. It is recommended that installation workers should seek appropriate training before construction.

Backfilling of trenches.

The backfill should be based on the principle of good heat dissipation performance and good solid-state stability. It is recommended to use clean river sand backfill with a diameter of no more than 5mm, and use artificial layered tamping for each layer of casing, and cannot be backfilled once after multi-layer installation. It is forbidden to use domestic garbage, organic matter and other materials to backfill, and the backfill should exceed the top casing 200 300mm before mechanical tamping.

Do you want to know which quota to apply when installing the wall sleeve? Different casings use different quotas. The quotas for engineering applications in different majors are also different.