The difference between the main pipe and the branch pipe

The difference between the horizontal branch drainage pipe and the horizontal main drainage pipe was their function and connection method. The horizontal branch drainage pipe was a horizontal pipe section connected to the sanitary ware, usually connected vertically or diagonally to the main pipe. It was used to distribute water to different zones or floors and supply specific faucet or equipment through the horizontal branch pipe. The horizontal main pipe was the main pipe in the system, also known as the main pipe. It was usually in the basement or buried. It went from the water source to the most unfavorable point. The most unfavorable point was usually the farthest water distribution point or the water distribution point at the elevation. Therefore, the difference between the horizontal branch pipe and the horizontal main pipe was their function and location.

Horizontal branch pipes and horizontal main pipes were two types of pipes in the drainage system of buildings. The horizontal branch pipe was a horizontal pipe section connecting the sewage collection device drain pipe and the vertical drainage pipe, and was used to send sewage from the sewage collection devices to the vertical drainage pipe. The horizontal branch pipe should have a certain slope to facilitate smooth drainage. The horizontal main pipe was a pipe section that connected several drainage vertical pipes to the discharge pipe, mainly to receive the drainage of the horizontal branch pipe. The connection point of the horizontal branch pipe and the horizontal main pipe has a certain distance from the bottom of the vertical drainage pipe to ensure the normal operation of the drainage system. The specific connection requirements could refer to the relevant specifications and design standards.

The horizontal branch drainage pipe was different from the horizontal main drainage pipe. The horizontal branch pipe was a horizontal pipe with a water point, while the horizontal main pipe did not have a water point and only had a branch pipe.

The difference between the UpPVP spiral pipe and the drainage pipe was that the UpPVP spiral pipe was a special type of drainage pipe with a noise reduction function. The inner wall was smooth, and the noise during drainage was low. The drainage pipe was an ordinary pipe with no noise reduction function. Therefore, the upvee spiral pipe could reduce noise during the drainage process, but the drainage pipe did not have this function.

When the drainage branch pipe is connected to the horizontal main pipe, the connection point shall not be less than 0.6 meters below the turning point.

When the horizontal drainage branch pipe is connected to the vertical pipe, different connection methods can be used. According to the Design Standard for Building Water and Waste Water, when the sanitary ware drainage pipe is vertically connected to the horizontal drainage pipe, a 90° inclined tee should be used. When the horizontal branch pipe is connected with the vertical pipe, it can adopt a three-way or four-way downstream pipe and a 45° inclined three-way or 45° inclined four-way pipe. In a special single-standpipe system, the horizontal branch pipe and the standpipe can be connected by special accessories. In addition, according to some provisions of the Building Water and Waste Design Code, when the drainage stand pipe is only equipped with a top vent pipe, the vertical distance between the lowest drainage horizontal branch pipe and the stand pipe bottom shall not be less than the specified distance. According to the Connection Design and Material Selection of Building Drainpipe Branch and Horizontal Main, when the drainage branch pipe on the upper layer of the horizontal main drainage pipe is connected to the horizontal main drainage pipe, it is recommended to use a 45° inclined tee to connect it from the top of the horizontal main drainage pipe. To sum up, when the horizontal drainage branch pipe is connected to the vertical pipe, different connection methods such as 90° inclined three-way, downstream three-way or downstream four-way, 45° inclined three-way or 45° inclined four-way can be used.

There were several different ways to install the horizontal drainage pipe. First, you can choose to hang the pipeline under the floor of this floor, also known as "non-same floor drainage" or "suspended drainage under the floor". Secondly, you can choose to lay pipes in the refill layer when the bathroom floor structure is sinking, which is also called "same-floor sinking drainage". In addition, they could also choose to install the pipeline on the ground of this floor, which was also called "same-floor drainage". The specific installation method needed to be selected and operated according to the actual situation and design requirements.

The horizontal drainage pipes shall be connected with the horizontal drainage pipes by oblique three-way, oblique four-way or three-way and four-way along the water. To be specific, the connection between the horizontal sewage pipes should not be made with a straight three-way or a straight four-way, but with an inclined three-way or an inclined four-way or a straight three-way or a straight four-way. These connections could ensure the normal operation and drainage effect of the drainage pipeline.

Spiral drainage pipe was a kind of pipe used in building drainage system, which had some characteristics and advantages. Spiral drainage pipe has the following characteristics: 1. Reduce noise: The design of the spiral drainage pipe can effectively reduce the noise pollution caused by drainage. The measured results showed that compared with the traditional cast iron drainage pipe, the noise of the spiral drainage pipe was about 2 to 4 decibels lower, and it had a silencing effect. 2. To prevent the damage of the floor drain seal: The spiral structure inside the spiral drainage pipe can reduce the pressure fluctuation in the pipe, avoid the damage of the water seal caused by the negative pressure of the upper user and the positive pressure of the bottom user, and improve the stability of the drainage system. 3. Increase drainage efficiency: The internal spiral structure of the spiral drainage pipe increases the friction resistance of the water flow, preventing the water flow from blocking the pipe due to inertia, improving drainage efficiency and reducing the occurrence of blockage accidents. 4. [Double silencing effect: Hollow wall spiral drainage pipe is a special structure of spiral drainage pipe. It has a double-layer structure and honeycomb-shaped holes, which can further isolate noise and have a better silencing effect.] In general, the spiral drainage pipe had the advantages of reducing noise, preventing the damage of the floor drain seal, and improving drainage efficiency. They are commonly used in the drainage system of buildings, especially for the drainage of single standpipes in high-rise buildings.

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