Pipeline installation is a new technology used by all electromechanical equipment. Pipeline installation includes common data, pipes, pipe fittings, flanges, basic operation technology of pipeline installation, pipeline connection, support and compensator installation, valves, building water supply and drainage pipeline installation, heating system installation, pipeline pressure test and cleaning, common industrial pipeline installation, non-ferrous metal pipeline and stainless steel pipeline installation Installation of common non-metallic pipes and anti-corrosion lining pipes, installation of instrument pipes and anti-corrosion and thermal insulation of pipes. The nominal diameter of the pipe is the standard diameter of the pipe and pipe accessories. It is the standard in terms of the internal diameter, which is only approximate to the internal diameter rather than the actual internal diameter. In pipeline engineering, a wide range of pipes are used. Due to different uses, a variety of pipes with different outer diameters are required. 1、 The inner diameter is different, plus the pipe

When the moving liquid, gas, dust and other media in the pipeline are stressed, the pressure bearing of the sealing lip attached to the surface of the pipe body will also be strengthened. The pipe connector tells you that the structure of the device not only prevents the leakage of the medium in the pipe, but also ensures the overall sealing performance of the pipe. When pressed, according to the Basigo principle of fluid mechanics, under the condition of sealing, every point in contact with the medium has a normal pressure equal to the internal pressure, so the bottom of the seal ring lip is subject to axial compression, the lip is subject to axial compression, the contact surface between the seal lip and the pipeline becomes wider, and the contact pressure increases, so as to achieve the self sealing effect. Under the action of pressure, the sealing surface is closely fitted with the pipeline, which can effectively ensure the sealing. According to the actual working condition, the sealing ring is mainly static sealing, which is relatively harsh

Installation and construction method of nano antibacterial tube 1. Precautions for nano antibacterial tube 1. Avoid touching sharp objects when carrying and installing nano antibacterial tube to prevent damage of nano antibacterial tube. 2. During the installation of nano antibacterial tube, organic pollutants such as nano antibacterial tube paint shall be prevented from contacting the nano antibacterial tube. 3. When installing the special nano antibacterial tube with metal inserts connected to the metal tube, the nano antibacterial tube should not be overexerted to prevent the nano antibacterial tube from damaging the threaded fittings and causing leakage at the connection of the nano antibacterial tube. 4. When heating the nano antibacterial tube, it is necessary to prevent the nano antibacterial tube from being overheated to thin the thickness of the nano antibacterial tube. The nano antibacterial tube is deformed in the tube fitting. 5. It is forbidden to rotate the nano antibacterial tube during hot melt intubation and calibration. 6. Operation of nano antibacterial tube

Mr. Lu Xun said: "There is no way in the world, but it becomes a way when there are many people. From the perspective of water supply protection, the water company and the user port are not easy to reproduce bacteria because the water is in a continuous state of activity, so the water quality is up to standard.". However, after arriving at the user port, since the water in the household water pipe is not always active, it will breed bacteria, so it is particularly important to choose the material of your own water pipe in household decoration. The tap water is yellow after the water supply is cut off because of it! Did you find that the tap water will turn yellow every time the water is cut off? The reason is that the drainage pipe is cast iron pipe or the inner wall of the pipe is always corrupted and breeding bacteria, and the rust or scaling on the inner wall will not be peeled off under the normal stable water flow environment, but once the water is stopped, the water flow direction may change

PPR household pipe is the abbreviation of Polypropylene Random, and its chemical name is random copolymer polypropylene, which is commonly known as Type III polypropylene. It is formed by random copolymerization of propylene monomer and a small amount of ethylene monomer (3% - 5%) under the action of heating, pressure and catalyst. Polypropylene (PP), as a kind of polymer, its toughness is greatly affected by temperature and loading speed. When the temperature is higher than the glass transition temperature, the impact failure is ductile fracture, and when the temperature is lower than the glass transition temperature, it is brittle fracture. When the temperature is lower than the glass transition temperature, the impact force required for brittle fracture of polymer materials will be greatly reduced. It is worth mentioning that the glass transition temperature of different materials is different, and the temperature of PPR material is higher, so its low temperature resistance

PPR household pipes are characterized by low temperature and brittleness, so special attention should be paid to the construction and installation in winter. Today, I would like to introduce what should be paid attention to when welding PPR household pipes in winter. 1. First, before construction, pay attention to check each ppr pipe, check whether the two ends of the water pipe are damaged, and if there is damage, cut off the damaged part to ensure the integrity of the whole water pipe during welding. Note: Due to the characteristics of PPR household pipes, in winter to prevent damage to the pipes during transportation, if there is damage or uncertainty, the pipe port should be reduced by about 5cm during pipe installation. In winter construction, the pipe should not be hit with a hammer or heavy object to prevent pipe explosion. 2. The cutting surface is flat and vertical. When cutting ppr pipes, the cross section should be flat and vertical, otherwise the welding will be insufficient. Pipe cutting should be dedicated to ppr

1、 PPR water pipes are commonly used to "add clothes" for PPR household pipes, which are fragile at low temperature. Therefore, for water pipes, water meters, faucets and other water facilities exposed outdoors, thermal insulation materials, such as old clothes, cotton wool, sponges, etc., can be used to bind them, and a layer of waterproof materials, such as plastic cloth, can be wrapped around the thermal insulation materials to prevent them from freezing. 2、 The water pipe in the home shall ensure the indoor temperature when the temperature drops suddenly, especially at night. If necessary, the balcony, kitchen, toilet and all windows can be closed tightly to prevent the impact of cold air on PPR water pipes and other water facilities. 3、 Drip antifreeze method In severe winter, especially when the temperature drops below zero, slightly turn on the tap at night to make the water flow into a line, and catch the drip with a basin or bucket. In this way, the running water in the pipe can be ensured to flow and prevent

In addition to the quality of the product itself, the quality of the construction effect is also a decisive factor in the installation of a complete set of PPR household pipes. The hot melting link in construction is an important part. The welding of PPR household pipes is a very important part of the installation process. If the hot-melt process is not in place, it is easy to leave hidden dangers, affecting the subsequent use, resulting in losses. How should PPR household pipes be welded? First, cut the pipe with PPR pipe scissors. When cutting, the pipe section shall be cut as flat as possible without burrs and burrs. The connecting end faces of pipes and pipe fittings must be clean, dry and free of pollution, otherwise the welding effect will be affected. The welding depth line shall be marked on the pipe welding interface. The melting point of PPR household pipe is 260 ℃, so the hot-melt device should be heated to 260 ℃. After the indicator light is on, the pipes and pipe fittings should be simultaneously

PPR household pipe is a water supply pipe used in the field of home decoration at present, and is a very reliable water supply pipe material. Copper tubes can indeed be sterilized, but the quality of tap water and bacteria are only part of the influencing factors. In addition, the tap water supply end has been disinfected by sodium hypochlorite, which is a must for waterworks all over the world (which helps the world eliminate cholera). Therefore, the sterilization effect of copper tubes is not very necessary. The inner wall of PPR pipes that have been used for one year is horrible? This is not very practical. There will be scale on the inner wall of PPR pipe after a long time. This is a common situation in all water supply pipes. It is mainly related to water quality, not unique to PPR pipe. It is an exaggeration to say that it is horrible. Another case is that the poor quality PPR household pipes with poor shading performance, if

Direct: also known as sleeve, pipe sleeve joint. If the installed water pipes at both ends are not long enough during decoration, add a length directly used to extend the water pipes. It should be noted that when using the direct pipe, attention should be paid to matching the size of the pipe elbow: elbow is used to change the direction of the existing water pipe/waterway. Conventional elbow angles are divided into 45 degree elbow and 90 degree elbow. Inner wire and outer wire: as the name implies, the thread mouth (also called thread tooth) of the pipe fitting where the inner wire is located is located inside the pipe fitting. As the name implies, the thread mouth (thread tooth) is located outside the pipe fitting. The pipe fittings of inner wire and outer wire are used together. It is used to connect faucets, water meters, and other types of water pipes during home decoration, while most of the pieces used in home decoration are internal thread pieces. Tee: It is divided into the same diameter tee (also called the positive tee) and the reducing tee. As the name implies, it is to connect three