What are the thickness requirements for wall bushings? Does anyone have an answer?

The main function of the airtight rib wall casing is to solve the problem that some underground projects need the pipeline to pass through the wall, but there are strict waterproof requirements at the passing place; There are also some structures that need pipelines to pass through the wall, but at the same time, the pipelines cannot be expanded and displaced due to temperature changes or external forces, and the pipelines cannot be designed and manufactured by vibrating under the action of external factors. Its shell is poured on the wall in turn, and the pipe passes through the middle of the casing, and the outer diameter of the pipe and the middle of the casing are sealed with packing, so as to play the role of waterproofing and vibration absorption.

The basement wears the floor slab and the reserved holes on the above floors, and when the basement civil air defense wall is pre-buried, the external wall and pool are pre-embedded with rigid waterproof casing, and the necessary reserved holes such as roof casing and domestic drainage are worn. The standards of the products used in each environment vary depending on the model, so it is necessary to process them according to the relevant atlas when making them. After the main steel structure of the basement is fixed, find the embedded position according to the height size marked in the water supply and drainage construction drawing, and then place the product in the steel reinforcement structure, and will contact the point with the reinforcement mesh, if the reserved hole has a deviation from the external dimensions of the embedded parts, when the steel bar needs to be cut for installation, communicate with the relevant person in charge of the civil engineering party and obtain the consent of the civil engineering party, and the two ends of the steel casing need to be sealed with tape after the placement is completed.

The aperture of the wall sleeve should be more than 5mm larger than the embedded part, and the thickness of the concrete mounting plate should not exceed 50mm. When the wall bushing with a rated current of 1500A and above is directly fixed on the steel plate, a closed magnetic circuit should not be formed around the casing. When the wall sleeve is installed vertically, the flange should be upward, and when it is installed horizontally, the flange should be outside.

The metal splint (except fasteners) at the end of the 00A and above bus wall casing should be made of non-magnetic material, and there is a metal connection between it and the bus, the contact should be stable, the thickness of the metal splint should not be less than 3mm, and when the bus bar is two or more pieces, the bus bar itself should be fixed. When the oil-filled casing is installed horizontally, the oil storage cabinet and oil sampling pipeline should be free of leakage, the oil level indication should be clear, the position of the oil injection and sampling valve should be installed on the patrol monitoring side, and the oil injected into the casing should be qualified.

The wall casing, also known as the wall pipe, is mainly used to protect the pipelines and cables that need to pass through the wall hole. Generally, the thickness requirement of the wall pipe is about 100 higher than the thickness of the wall itself, of course, there is no clear specified size, but it must not be lower than the thickness of the wall, if it is lower than the thickness of the wall, it may not play a protective role.

1. According to China's regulations, when installing the wall casing, a hole should be reserved, which should not be less than one meter, and it is stipulated that the hole should be filled with impermeable elastic materials;

2. The pipeline must pass through the concrete floor slab and ordinary wall tiles, and there must be a reserved hole when passing through these floor slabs and wall installations. If it is an ordinary brick, you can find a place to make a hole;

3. When the floor is installed, the slope must be found well, and the line must be adjusted when installing the casing;

4. The aperture of the wall casing should be above 5mm for most of the time, and the maximum thickness of the floor slab for concrete installation should not exceed 50mm;

5. The wall casing must be installed vertically, and it should be horizontal when installed, and the flange should be outside, if it is a bus bar above 6000, do not use magnetic materials for the wall casing, which will lead to unstable contact between the bus bar and the wall casing;

6. The thickness of the metal splint when passing through the wall casing should not be less than 3mm, the oil level must be clear, and the oil injected into the casing must be careful and careful.

Wall casing, also known as wall casing, waterproof casing, wall embedded pipe, waterproof casing is divided into rigid waterproof casing and flexible waterproof casing. The two are mainly used in different places, and the flexible waterproof casing is mainly used in civil air defense walls and water.

In places with high requirements such as pools, rigid waterproof casings are generally used in basements and other places where pipes need to be routed. Flexible wall casing is a hardware pipe suitable for structures that are subject to vibration or have strict waterproof requirements where the pipe passes through the wall.

pieces, the general production enterprises are manufactured according to the standard atlas developed and designed by the Institute of Building Research. The wall where the flexible wall casing penetrates the wall, if it is not concrete, should be changed to a concrete wall, and the casing must be solidified at one time.

inside the walls; Flexible wall casing is widely used in construction, chemical industry, steel, tap water, sewage treatment and other units. The rigid wall casing is a steel pipe with a wing ring (an annular sleeve made of steel plate on the steel pipe), which is installed in the wall (mostly concrete).

wall), used for general pipe through the wall, conducive to the waterproofing of the wall, and the flexible wall casing in addition to the external wing ring, the internal retaining ring, flange inner wire, there are complete sets of sales, can also be processed by themselves, used for shock-absorbing pipes.

roads, such as when a pipe connected to a water pump passes through a wall. Wall sleeves are hardware fittings used for pipes to pass through the walls of buildings that are subject to vibration or have strict waterproof requirements. Wall casing is often used in construction, chemical industry, steel, tap water, and sewage.

water treatment and other units.

Through the wall pipe casing of the wall tung respectful to the bridge cautious and standardized, hello dear! 1. The specification for the wall casing requires 1. When installing the wall casing, the aperture should be more than 5 mm larger than the embedded part, and if it is installed concrete, the thickness should be less than 50 mm; When the rated current is more than 1500 amperes (inclusive), when the wall casing is to be fixed, a closed magnetic circuit cannot be formed around the casing; 2. If the wall sleeve is installed vertically, the flange should face upward, and when installed horizontally, the flange should face outward. 600A and above metal splints to choose non-magnetic materials, and the bus is connected with metal, its thickness is more than 3 mm, if the bus is two or more pieces, pay attention to fixation.

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Summary. Pro, the national standard for the thickness of the casing through the floor slab is not less than 2 mm.

Pro, the national standard for the thickness of the casing through the floor slab is not less than 2 mm.

1. According to China's regulations, when installing the wall casing, a hole should be pre-opened and closed, which should not be less than one meter, and it is stipulated that the hole should be filled with impermeable elastic material lead air;

2. The aperture of the wall casing should be above 5mm for the majority, and the thickness of the floor slab for concrete installation should not exceed 50mm;

3. The thickness of the metal splint when passing through the wall sleeve should not be less than 3mm, and the positioning must be clear;

4. The pipeline must pass through the concrete floor slab and ordinary wall tiles, and there must be a reserved hole when the celery pie carries it through these floor slabs and wall installations. If it is a brick, you can find a place to make a hole;

Dear, I am glad to answer for you: what is the general thickness of the wall casingThe thickness of the wall casing is generally 50mm, when installing the wall casing, the aperture should be more than 5 mm larger than the embedded part, if it is a concrete installation, the thickness is less than 50 mm; When the rated current is more than 1500 amperes (inclusive), the wall casing is also called the wall casing, waterproof casing, wall embedded pipe, and waterproof casing, and the wheel beam is a rigid waterproof casing and a flexible waterproof casing. The electric power used for conductive use is called finger-volt AC wall bushing, which can be divided into dry capacitive AC wall bushing and porcelain insulated AC wall bushing from the material, which are referred to as silicone rubber sleeve and porcelain sleeve respectively.

Summary. The national standard for the thickness of the casing through the floor slab is required to be in the **? Hello dear , glad for your question :

This depends on the specific situation: a casing is required for a general air duct to pass through a firewall, and a casing is not required to pass through an ordinary wall. But there are clear provisions:

1.Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering (GB50243-2002) When the air duct passes through the fireproof and explosion-proof wall or floor that needs to be closed, the height of the embedded pipe or protective sleeve should be set, and the thickness of the steel should not be less than. Between the air duct and the protective sleeve, a non-flammable and non-hazardous flexible material should be used to plug it.

2."Technical Regulations for Ventilation Pipes" When the air duct passes through the fireproof and explosion-proof floor or wall that needs to be closed, a pre-embedded pipe or protective sleeve with a wall thickness of not less than 1 6mm should be provided, and a non-combustible and harmless flexible material should be used to block between the air duct and the protective sleeve.

The national standard for the thickness of the casing through the floor slab is required to be in the **? Hello dear, glad your question: it depends on the situation:

The general air duct needs a casing to pass through the firewall, and the casing section is not required to pass through the ordinary wall. But there are clear provisions:1

Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering (GB50243-2002) When the air duct passes through the fireproof and explosion-proof wall or floor that needs to be closed, the height of the embedded pipe or protective sleeve should be set, and the thickness of the steel should not be less than. Between the air duct and the protective sleeve, a non-flammable and non-hazardous flexible material should be used to plug it. 2.

Ventilation duct technology to make the tomb of the operating procedures》 When the air duct passes through the fireproof and explosion-proof floor or wall that needs to be closed, an embedded pipe or protective sleeve with a wall thickness of not less than 1 6mm should be provided, and a non-combustible and harmless flexible material should be used to block the air duct and the protective sleeve.

The national standard requirements for the wall thickness of the embedded casing on the fire water penetration.

The acceptance specifications for the wall thickness of fire pipes are: 1. DN200 galvanized steel pipe, national standard wall thickness; 2. DN150 galvanized large-ground steel pipe, national standard wall thickness; 3. DN100 galvanized steel pipe, national standard wall thickness; 4. DN80 galvanized steel pipe, the first thickness of the national standard wall bridge; 5. DN65 galvanized steel pipe, national standard wall thickness; 6. Roller bucket DN50 galvanized steel pipe, national standard wall thickness; 7. DN40 galvanized steel pipe, national standard wall thickness; 8. DN32 galvanized steel pipe, national standard wall thickness; 9. DN25 galvanized steel pipe, national standard wall thickness.

Hello, what are the commonly used specifications and models of wall casing?

Wall casing, also known as wall casing, waterproof casing, wall embedded pipe, waterproof casing is divided into rigid waterproof casing and flexible waterproof casing. According to the through-wall screw.

The size of the specification determines the model used, and the diameter of the wall screw is 12mm, 14mm, 16mm, 18mm, etc. Hope it helps, thank you.