The latest price of polyurethane insulated steel pipe

&[The latest price of polyurethane insulated steel pipes] Tianze Pipe Industry specializes in the production of high-quality polyurethane insulated steel pipes, ensuring that the outer protective sleeve is light-resistant and corrosion-resistant. Engineering quality is above all else. Everything we do is just to meet your high requirements! & Introduction to polyurethane insulated spiral steel pipes
Directly buried insulated pipes can be buried directly in... meters of frozen soil (so people are used to calling them direct-buried insulated pipes or prefabricated insulated pipes), and their heat loss is lower than that of ordinary pipes It can be reduced by more than %, and its working life is more than times longer than other insulation and anti-corrosion materials. The life span can reach 100%, and the quality is in line with or higher than Chinese industry standards. Its complete thermal insulation system has the characteristics of low overall project cost, short construction period, long life, energy saving, and environmental protection. The continuous operating temperature is ℃, and the peak value is as high as ℃.
Classification of direct buried insulated pipes
&, Plastic-sleeved steel insulated pipe: Plastic-sleeved steel insulated pipe is closely combined with high-density polyethylene outer casing, polyurethane foam insulation layer and inner working steel pipe.
&. Steel-in-steel insulation pipe: Steel-in-case steel insulation pipe is a combination of outer protective steel pipe, steel pipe anti-corrosion, polyurethane foam insulation layer and inner working steel pipe.
Polyurethane insulated directly buried pipes have become a relatively mature and advanced technology in some developed countries abroad. In recent years, Chinese heating engineering technicians have digested and absorbed this advanced technology and are promoting the development of China's domestic pipe network laying technology to a higher level. The practical results over the past few years have fully proved that the laying method of polyurethane insulation directly buried pipes has many advantages compared with traditional trench and overhead laying. This is also the intrinsic driving force behind the rapid development of polyurethane insulation directly buried pipes in China's heating projects.
Product Description
Directly buried insulated pipes are closely combined with a steel pipe for transporting media, a high-density polyethylene outer casing, and a filled polyurethane hard foam insulation layer between the steel pipe and the outer casing.
Directly buried prefabricated insulated pipes have very outstanding advantages over traditional various types of insulated pipes
Polyurethane directly buried insulated pipes have good thermal insulation performance, and the heat loss is only % of traditional pipes, which can save money in long-term operation. A large amount of energy, significantly reducing energy costs.
. It has strong waterproof and corrosion resistance, no need for attached pipe trenches, and can be directly buried in the ground or water. The construction is simple and fast, and the overall cost is low.
It also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in underground frozen soil.
The service life can be up to 10 years. Correct installation and use can make the maintenance cost of the pipe network extremely low.
. An alarm system can be set up to automatically detect leakage faults in the pipe network, accurately indicate the fault location and automatically alarm.
The service life can be up to 10 years. Pipe diameter: D thickness Application: central heating pipes, refrigeration pipes, industrial pipes, etc.
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Application of prefabricated directly buried pipes
Prefabricated directly buried pipes are suitable for transportation in Thermal and cold insulation projects of various media within the range of ℃℃. Advantages and characteristics of polyurethane directly buried thermal insulation pipes.
, reduce project cost. According to calculations by relevant departments, double-tube heating pipes can generally reduce the project cost by about % (using fiberglass as the protective layer) and % (using high-density polyethylene as the protective layer).
, low heat loss, saving energy. It is much lower than other pipe insulation materials commonly used in the past, and the insulation effect is ~ times improved. Furthermore, its water absorption rate is very low, approximately. /. The reason for the low water absorption rate is that the closed cell rate of polyurethane foam is as high as about %. Low thermal conductivity and low water absorption, coupled with the insulation layer and high-density polyethylene or fiberglass protective shell with good waterproof performance on the outside, have changed the situation of traditional trench-laying heating pipes wearing wet cotton jackets, greatly reducing the overall heat loss of the heating pipes. Loss, the heat loss of the heating network is %, which is less than the international standard requirement of %.
, anti-corrosion, good insulation performance and long service life. Because the polyurethane rigid foam insulation layer is tightly bonded to the outer skin of the steel pipe, it isolates the infiltration of air and water and can play a good anti-corrosion role. At the same time, its foaming holes are closed and its water absorption is very small. High-density polyethylene shell and fiberglass shell have good anti-corrosion, insulation and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by outside air and water. As long as the internal water quality of the pipeline is well treated, according to foreign data, the service life can reach more than 10 years, which is ~ times longer than the service life of traditional trench laying and overhead laying.
It occupies less space, is quick to construct, and is conducive to environmental protection. Directly buried heating pipes do not require the construction of huge trenches, only the insulation pipes are buried underground, thus greatly reducing the project area, reducing the amount of earth excavation by about %, and reducing the amount of civil masonry and concrete by %. At the same time, the insulation pipe processing and on-site trenching are carried out in parallel, and only on-site joints are needed, which can shorten the construction period by about %.
, safety. The polyurethane directly buried thermal insulation pipe is equipped with a leakage alarm line. Once leakage occurs somewhere in the pipeline, through the conduction of the alarm line, the exact location and extent of leakage in the insulation pipeline can be displayed on a special detection instrument. In order to notify the leakage inspection personnel to quickly deal with the leaking pipe section to ensure the safe operation of the heating pipe network.