Seamless hot melt sleeve——Huashida launches a new type of thermal pipe fittings

Recently, Qingdao Huashida Machinery Co., Ltd. launched a new type of thermal pipe network fittings——The seamless shrinkage type hot melt sleeve will undoubtedly revolutionize the traditional pipeline interface welding mode and better promote the safe and leak free operation of the thermal pipeline network system.

new typeSeamless hot melt sleeve, is a new type of hot-melt pipe fittings independently developed by Huashida based on the absorption of relevant European technologies. It is made of polyethylene material as its base material and processed through biaxial stretching. The thickness of the base material of the pipe fittings is the same as that of the pipeline substrate, but the strength increasesMore than 20%. During construction, only using a flame gun for baking, the pipe fittings can be tightly connected to the pipeline after shrinking, fully meeting the standards for conducting airtight testing. If there is deformation at the end of the pipeline during foaming or transportation, it may cause the hot melt sleeve to fail the 100% pass of the closed air test after welding. In this case, 100mm wide heat shrinkable tape can be selected on both sides of the seamless hot melt sleeve for auxiliary reinforcement, ensuring that the interface can pass the airtight test 100%. Electric heating elements can also be arranged on the substrate, and hot melt can be completed through secondary heating to ensure the passing of the closed air experiment.

In the past, old electric heating fusion sleeves were used, and welding was carried out using overlapping hot melt technology. Due to the high requirements for the quality of operators, strict standards were set for current, voltage, and welding time. Even a slight mistake could lead to welding failure, making it difficult to pass the closed air test. At the same time, there must be power supply engineering vehicles on site, as there are many construction constraints. The new heat shrink hot melt sleeve launched by Huashida is baked with a flame gun and can be solved with just one liquefied gas tank, avoiding the embarrassment of working in the field without electricity. The construction process is simple, easy to operate, and there are no strict technical requirements for welding workers. With a little training, they can be competent. And the engineering pipeline network using a new seamless hot melt type hot melt sleeve greatly improves system stability and safety, extends service life, and has great market competitiveness. This new seamless hot melt sleeve has been applied in pipeline projects in Lanzhou and Zhengzhou, and has received unanimous praise from customers and thermal companies.

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