PE resin is formed by the polymerization of monomer ethylene. Due to the different aggregate reactions such as pressure and temperature during polymerization, resins with different density can be obtained. The division. When processing different types of PE pipes, according to the different application conditions, the resin brand is different, and the requirements for the extrusion machine and molds are also different. The materials of polyethylene tubes are divided into five levels: PE32, PE40, PE63, PE80, and PE100. The materials used for gas pipes and water pipes are mainly PE80 and PE100.
The most commonly sold is the PE100 Water HDPE PIPE. In order to make it easier for customers to buy Water HDPE PIPE. The following table is the parameter of the Water HDPE PIPE. Customers who need it can refer to it.
The application and economic evaluation of HDPE to the water pipeline
The outdoor water pipes mainly include ball-ink cast iron pipes, galvanized steel pipes, PVC-U water pipes, HDPE, etc. The reason why HDPE can achieve such a rapid development and application is in addition to the advantages of pipes in application, but also live in the application, but also live in the application of the application, but also live in the application of the application. HDPE Pipeline County has the characteristics of economic and practicality
① The price of the tube of the iron pipe of the boat is: DN30DO-206.18 yuan/m; HDPE
The price of the tube is DE315, 208 yuan/m. From the perspective of the unit price of the pipe, the price of the ball ink cast iron pipe and the HDPE tube are equivalent
② Because the HDPE tube is connected with hot melt, the construction is difficult, and the installation cost is about 40 % higher than that of the ball ink cast iron pipe.
③ Because the flexibility of the HDPE pipe is better, the excavation of obstacles or ditch is not straightforward
In the case, it can be placed directly without the pipe parts, but the ball and ink cast iron pipe cannot be used. Sometimes the pipes such as the elbow or the tube must be used to transition to connect. In this way, the HDPE tube in the pipe section is better than the ball and cast iron pipe.
④ The water HDPE pipe adopts a hot -melt docking connection. The intensity of the interface part is very good. There is no need to support the pier. The ball and ink cast iron pipe uses a inheritance connection to reinforce the concrete reinforcement pier in the three links and elbows. In this regard, the cost is naturally higher than the HDPE tube.
④ Water HDPE pipes do not require corrosion. If the water hdpe pipe is used to use the ball and ink cast iron pipe, it is required to
The inner and outer walls of the cast iron pipe are carried out.
⑥ After the ink and ink cast iron pipe is carried out in the inner and outer wall of the tube, the normal service life is 20-25 years, and the water HDPE pipe does not have corrosion, and the normal service life is 50 years. From the perspective of comprehensive engineering cost, the cost of water HDPE pipes with DN300 caliber is lower than the cost of the ball ink cast iron pipes. Through the analysis of cost and other aspects, we adopt the HDPE tube plan.
HDPE's precautions for the application of the water pipeline
① The outdoor open -air is laid and there is a place where the sun is shining.
② Buried land HDPE to the water pipeline, DN≤110's pipelines are installed in the summer installation that can be slightly snake -shaped. Dn ≥ 1110 pipelines have sufficient soil resistance, which can resist thermal stress without reserving the pipe length.
There is no need to reserve excess tube length in winter.
③ When the hot melting is connected, the heating temperature should not be too high or too long. The temperature is best controlled at 210 ± 10 ° C, otherwise it will cause too much melt from the accessories in the accessory to reduce the inner diameter of the water pass; The pipe interface should be cleaned and clean, otherwise it will cause the inheritance and leakage. At the same time, pay attention to controlling the angle and direction of the pipes to avoid rework.
④ When the hot -melt docking connection, the voltage is required between 200V 1.220V. If the voltage is too high, the temperature of the heating plate will be too high and the voltage is too low. When docking, the interface should be kept aligned, otherwise it will cause insufficient docking area, insufficient welding intensity, and asymmetry of the rolling edge; the pipe interface should be treated clean when heating plate heating. Take off the interface and leak water. The heating time must be controlled, the heating time is short, and the tube is insufficient to absorb the heat, which will cause the welding mouth to curl too much. If the heating time is too long, it will cause the welding mouth to roll too much, and it may form virtual welding; Must be guaranteed enough cooling time.
⑤ Different seasons, different temperatures, during interface welding, the heating temperature and heating and cooling time will be different. Pay attention to adjustment during construction.
⑥ In the process of transportation, storage, handling, and installation, be careful not to scrape sharp items and stay away from bright fire and high temperature.
Our factory not only has the technology to specialize in the production of Water HDPE PIPE, but also has professional knowledge for Water HDPE PIPE applications and construction. There are customers who want to order Water HDPE PIPE, after buying, you can contact us for any questions.
A good pipeline should not only have a good economy, but also have a series of advantages such as a stable and reliable interface, material resistance, anti-cracking, aging resistance, and corrosion resistance. Compared with traditional pipes, the HDPE pipeline system has the following one series advantages:
⑴ Connection is reliable: Electric heating and fuses are connected between polyethylene pipeline systems, and the intensity of the joints are higher than the intensity of the pipeline body.
⑵The low-temperature resistance: The low-temperature crispy temperature of polyethylene is extremely low and can be used safely within the temperature range of -60-60 ° C. During winter construction, the pipe is crispy due to the good impact on the material.
(3) Good anti-stress cracking: HDPE has low gap sensitivity, high shear strength, and excellent anti-scratching ability, and environmental stress cracking performance is also very prominent.
蚀 Good chemical corrosion: HDPE pipeline can resist the corrosion of a variety of chemical media, and chemicals in the soil will not cause any degradation effect on the pipeline. Polyethylene is an insulator of electricity, so rot, rust or electrochemical corrosion will not occur; in addition, it will not promote algae, bacteria, or fungal growth.
Nevertheless, the release of harmful substances when burning.
Audging, long service life: The carbon black pipes containing 2-2.5%of the uniformly distributed carbon black pipes can be stored or used for 50 years outdoors, and will not be damaged due to UV radiation.
H Good abrasion resistance: The abrasion resistance comparison test of the HDPE pipe and the steel pipe shows that the abrasion resistance of the HDPE pipeline is 4 times that of the steel pipe. In the field of mud transportation, compared with steel pipes, the HDPE pipeline has better abrasion resistance, which means that the HDPE pipeline has a longer service life and better economy.
D Fleevability: The flexibility of the HDPE pipeline makes it easy to bend. The engineering can bypass the obstacles by changing the direction of the pipeline. On many occasions, the flexibility of the pipe can reduce the number of pipes and reduce the installation cost.
H Water flow resistance: HDPE pipeline has a smooth inner surface, and its Manning coefficient is 0.009. The smooth performance and non-adhesive features ensure that the HDPE pipeline has higher conveying capabilities than traditional pipes, and at the same time, it also reduces the pressure loss and water consumption of pipelines.
H Easy to handle: HDPE pipelines are lighter than concrete pipes, galvanized pipes, and steel pipes. It is easy to carry and install. Lower human and equipment demand means that the installation cost of the project is greatly reduced.
A variety of new construction methods: HDPE pipelines have a variety of construction technology. In addition to using traditional excavation methods for construction, there can also be a variety of new non-excavated technologies such as top pipes, directional drilling, lining pipes, and lining. Construction is carried out, which is the only choice for some places that are not allowed to excavate, so the HDPE pipeline application field is more extensive.
The above is the advantage of Water HDPE PIPE. We have many years of experience in the production of Water HDPE PIPE. It has a complete production line and can provide a variety of different specifications of Water HDPE PIPE. Customers in need can leave us a message.