Product Description
Characteristics of PE electrofusion pipe fittings
Electric fusion pipe fittings play an important and irreplaceable role in engineering and maintenance. In construction, electric fusion pipe fittings are less affected by the external environment and human factors, so they are more reliable and more popular with users. Especially in gas pipe projects, electric fusion pipe fittings are increasingly used.
Since the base of the electrofusion pipe fittings is PE material, together with the pipeline system composed of PE pipes and wire mesh skeleton pipes , it solves the two major problems of traditional pipelines: corrosion and leakage at the joints. Its advantages are mainly reflected as follows:
( 1 ) Corrosion resistance: long service life;
( 2 ) No leakage at the joints: The use of electrofusion pipe fittings for connection essentially ensures the identity of the interface material and structure of the PE pipeline system and the pipe body itself, achieving the integration of joints and pipes;
( 3 ) Effective resistance to underground movement and end loads: When PE pipe systems are connected by welding, the joints based on this method are resistant to end loads and will not leak. At the same time, PE 's stress relaxation properties can effectively dissipate stress through deformation. Therefore, in most cases, expensive anchoring is not required at joints and bends. In addition, due to its high toughness, the elongation at break is generally more than 500% , and the PE pipe system has a strong ability to adapt to uneven settlement of the pipe foundation . [1]
Certifications
We have passed ISO9001:2015 quality management system certification, ISO14001:2015 environmental management system certification, ISO45001:2018 Occupational health and safety management system certification. In addition, we qualify the member cooperation unit with the State Grid Corporation of China and signed a long-term supply contract with the State Grid of China.
Production features
Installation and usage steps
- Cut the pipe vertically, and use a scraper to remove the surface oxide layer at the position where the socket is inserted into the electrofusion pipe fitting.
- Use a marker pen to mark the surface of the pipe according to the socket depth of the electric fusion fitting.
- Insert the pipe into the electrofusion pipe fitting until the depth of the marking line. After installation, the axis line of the pipe coincides with the electrofusion pipe fitting.
- Fix the pipes and fittings with clamps to prevent dislocation and loosening during the welding process. [1]
Precautions
- During installation, the inner wall of the electrofusion pipe fittings and the pipe welding area are strictly prohibited from being contaminated by organic matter and other substances.
- When welding pipe fittings, you must stay away from the welded pipe fittings and wait until the welding is completed and cooledfor 30 seconds before approaching.
- According to the temperature and working voltage changes of the on-site environment, the welding time can be appropriately compensated during welding.
- Input a matching power supply according to the requirements of the electrofusion welding machine. The farther the power source is from the electrofusion welding machine, the larger the diameter of the power cord is required to avoid undervoltage that affects the welding quality.
- When installing pipelines, elbows and tee fittings must be reinforced with buttresses or fixed with brackets and properly compensated for the pipelines.
- The pipes must be buried below the permafrost layer, and water must not soak the pipes in the trench during installation and welding.
- When the temperature is low, good insulation work must be done when welding electric fusion pipe fittings.
- When working in an environment with a large temperature difference between day and night, it is necessary to use a centralizer and other toolsto fix the pipes on both sides of the electric fusion fittings to prevent thermal expansion and contraction from affecting the welding quality.
- During the cooling process, pipes and fittings cannot be moved.
Issues that need to be paid attention to when installing electrofusion pipe fittings:
- First of all, during the installation process, no organic matter or pollutants should appear on the inner wall and welding area of the electric fusion pipe fittings. At the same time, a certain distance should be maintained during the welding process to avoid unnecessary damage;
- The landfill area of electric fusion pipe fittings needs to be located belowthe frozen soil layer . It should be noted that during the installation and welding process, the pipes cannot be soaked in water;
- In harsh environments where the temperature difference between day and night is relatively large, it is necessary to promptly select centralizers and other methods to fix the pipes to avoid affecting the final welding quality due to the principle of thermal expansion and contraction; at the same time, if the temperature is particularly low, it is necessary to Take insulation measures to avoid unnecessary losses;
- Finally, the pipe cannot be moved at will during the cooling process. [2]
FAQ
Q1: What about the sample?
A1: Our sample is usually well prepared and coated well, and delivered to customers by international courier(DHL, FedEx, TNT etc.) .
Q2: What about your payment terms?
A2: We usually use T/T payment term, but L/C is also fine. In the future, we will continue to support other payment terms.
Q3: How long is the expected delivery time of the product?
A3: We will complete orders below 10,000 meters within 15 working days, and the final arrival time will be affected by the shipping date.
Q4: Could you use our labels or printings instead of yours? (ODM)
A4: Yes, it depends on the requests of customer. But important data must be printed on the pipe such as outer diameter, wall thickness, PN data, SDR data, Production standard, Place of origin and date of production.
Q5: Could you offer special package services?
A5: Yes. We could offer the package on customer' s requests. It might have some extra fees.
Q6: What is the service life of your product?
A6: The service life should be 50 years.But you must follow our correct storage and construction precautions, otherwise the consequences need to be borne by yourself.
Q7: How could you guarantee the quality of you product?
A7: We could offer MSDS, COA, TDS files on customer' s requests and charge for additional charges. In addition, we'll take random samples and analyze them.
Project site photos
Relational production
PE100 water supply pipe
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