What is Drain Pipe? How to choose?

Reasonable selection of drainage pipes is a very important part of home design, and it is also the most important part of drainage system design. Roughly speaking, it is mainly considered from three aspects: economy, situation and technology. Many people are at a loss when choosing the material of the drain pipe.

As long as the drainage water temperature, water quality, section size, pressure and construction conditions and other factors are selected, the drainage pipe materials are selected as far as possible, and the drainage pipe materials that are easy to install, taken locally and transported are as far as possible. In this way, the cost of construction will not be so high. Drainage pipe type - galvanized iron pipe, galvanized iron pipe is currently the most used material, due to the corrosion of galvanized iron pipe caused by the heavy metal content in the water is too high, affecting human health, many developed countries and regions of the first department has begun to prohibit the use of galvanized iron pipe.

At present, China is gradually phasing out this type of pipeline. Types of drainage pipes - copper pipes.

A more traditional but more expensive pipe material, durable and easy to build. In many imported bathroom products, copper pipes are the first choice. ** is the most important reason affecting its use, and copper etching is also a factor.

Type of drainage pipe - stainless steel pipe. Stainless steel pipe is a more durable pipe material. However, its ** is high, and the construction process requirements are relatively high, and its material strength is hard, and on-site processing is very difficult.

Therefore, the probability of being selected in the renovation project is low. Type of drainage pipe - aluminum-plastic composite pipe. Aluminum-plastic composite pipe is a kind of pipe that is more popular on the market at present, because of its light weight, durability and convenient operation, its bendability is more suitable for use in home decoration.

The main disadvantage is that when used as a hot water pipe, the pipe wall will be misaligned due to long-term thermal expansion and contraction, resulting in leakage. Type of drainage pipe - stainless steel composite pipe. Stainless steel composite pipe and aluminum-plastic composite pipe are similar in structure, and to a certain extent, the performance is also relatively similar.

A drainage system is a system of pipes and ancillary facilities that collect and discharge wastewater. The drainage pipe system and the water supply network are similar in the plan, but there are essential differences in the way water is delivered. In order to improve the water supply conditions without towers, the water supply thousand pipes are suitable for organizing into a ring-shaped combination, and the water flow is not directional, and the water flow to the low water pressure is generally the place where water is needed.

Drainage channels, on the other hand, are basically arranged according to the terrain. The pipe sections have slopes, and the water flows directionally along the slope, resembling tree branches, forming a pipe system. Drainage pipes are divided into rainwater pipe system, sewage pipe system and confluence pipe system.

Stormwater pipes collect and discharge surface wastewater, mainly rainwater runoff, and industrial wastewater that is allowed to be discharged into natural water bodies without treatment. Sewage pipes are the collection and discharge of all used domestic water and industrial wastewater that is allowed to be discharged into urban sewage pipes, both of which are collectively referred to as urban sewage. The sewage pipe system and the rainwater pipe system are often separately set up with a separate flow system.

The confluence pipe system collects and discharges all wastewater (including rainwater and sewage), generally with interception pipe and overflow and overflow outlet or other sewage interception facilities, and on sunny days, the wastewater is converging to the wastewater treatment plant through the interception pipe.

There are several differences between drainage pipes and water supply pipes;

1. The water supply pipe is a pressure pipe, and the drainage pipe is a non-pressure pipe, and the pressure pipe has high requirements for the mechanical properties of the material and the installation process, and the non-pressure pipe is relatively low.

2. Drainage pipes are used for drainage, such as real estate project drainage, rainwater, community drainage, etc., there is no requirement for health indicators. The water supply pipe is used for water supply, and some are also used for farmland irrigation, if it is for the water supply project, it is also necessary to have sanitary indicators, non-toxic and non-polluting and other detection indicators.

3. The wall thickness of the water supply pipe is thick, and the wall thickness of the drainage pipe is thin.

Drainage pipes are used for drainage, such as drainage on real estate projects, rainwater, community drainage, etc. The drainage pipe itself has no pressure, no pressure, and there is no requirement for health indicators, if you want to distinguish the best bad pipe, then you have to look at its toughness, tensile performance, etc.

Water supply pipes, self-evident is used for water supply, of course, some are used for farmland irrigation, and the biggest difference with drainage pipes is that they need to be able to withstand pressure, if it is for water supply projects, it is also necessary to have health indicators, non-toxic and non-polluting and other detection indicators.

To sum up: 1. Pressure: Both water supply pipes and drainage pipes have pressure requirements, so it is not completely possible to distinguish them by pressure. (embodied in the high-rise riser).

2. Pipe: As one netizen said, for small tubes.

Pipes may all be PPR, but large pipes, especially municipal pipes, have different requirements. As long as it is reflected, the sanitary conditions of the drainage pipe can be appropriately reduced, and the drainage pipe has a silent structure (the drainage pipe is mostly non-full pipe flow).

3. Pipe diameter: the minimum drainage pipeline is generally DN50, the minimum water supply pipeline is DN15, and the general municipal pipeline, the drainage pipeline is much larger than the water supply pipeline.

The difference between water supply and drainage pipes and industrial pipes, the uses are different.

1. Water supply and drainage pipelines.

According to the different uses, the building water supply system can be divided into living, production and fire water supply systems, and these three water supply systems are not necessarily set up separately, but are often two or three combined systems. The building drainage system is to collect the water used in the daily life and industrial production of the building inside, and discharge it outdoors in time, according to the different nature of the sewage discharged by the system, the internal drainage of the building can be divided into domestic sewage, domestic wastewater, industrial wastewater, roof rainwater, domestic sewage (waste) water, industrial wastewater, rainwater are respectively set up for pipeline discharge, called the diversion system; Combining more than two types of discharge in one pipeline is called a confluence system; The form to be adopted should be determined according to the water quality situation and the different requirements of the locality, and after technical and economic comparison.

2. Industrial pipelines.

The production pipelines in industrial construction projects are all industrial pipelines. Industrial pipelines can be subdivided into two types: process pipelines and power pipelines. The process pipeline generally refers to the pipeline that directly transports the main materials (media) for product production, also known as the material pipeline; Power pipelines refer to pipelines that transport power media for production equipment, such as steam pipelines, air compressor gas pipelines, nitrogen pipelines, cyclopentane pipelines, oxygen pipelines, etc.

Power pipelines affect the normal operation of production.

Toilets generally have three pipes: water supply, drainage and heating. It can be seen from the material that the sewage (drainage) pipe is a PVC pipe white plastic pipe, the water supply is a PPR pipe (there is a blue road is cold water), the floor heating is a PE pipe and the white pipe is DE20 pipe, and the radiator is now generally used PPR pipe (there is a red channel is a hot water pipe), and the PPR pipe is also a plastic pipe, that is, there is a blue road and a red road on the pipe are cold water and hot water respectively.

The design of the toilet is generally water supply and drainage, and generally equipped with radiators; It can be seen from the material that the sewage pipe is a PVC pipe, a white plastic pipe, a PPR pipe for the water supply (cold water with a blue road), a PE pipe for floor heating, a white pipe for DE20, and a radiator is now generally used PPR pipe (there is a red channel for hot water pipe), and the PPR pipe is also a plastic pipe, that is, there is a blue channel and a red channel on the pipe, which are cold water and hot water respectively.

Most of the rooms have plumbing for water, heating and sewerage. The sewage pipe is relatively the thickest, generally with a diameter of 100mm. Most of the water supply pipes in the toilets do not go to the roof, and only the water supply is for the water supply and flushing water.

If you look for it along the total water meter of the household, the diameter of the pipe will not exceed 25mm, and the branch pipe is not mostly DN20. The thickness of the heating pipe is about the same as that of the water supply pipe, but in most cases it will be slightly thicker. The obvious feature is that the upstairs and downstairs are connected, but there is no water meter.

Let's take a closer look. There are some on the tube.

What does it mean?? Your house or your project's house? Are you doing construction or cost? From the position of the pipeline or from the English letter of the pipe superscript?