Reference Indicators For PE Pipe Welding Work

Why cannot gas pressure testing be used instead of water pressure after the installation of PE pipes? The reference index for PE pipe welding work can be obtained: welding temperature: 220 ° C ± 10 ° C. Therefore. Heating time: Pipe wall thickness 9-12 seconds. The product thickness, PE pipe, is mainly used to distinguish the degree of use and manufacturing technology of the product. The product thickness needs to be within the standard range, and there is no significant difference in different cross-sectional thickness tests.
The wetness will affect the effectiveness of the materials used in the production of PE pipes, so the materials are usually dried before use, which can also reduce some factors that affect their use during the production of PE pipes. According to pipeline planning and usage, if there are problems with welding, there is a high possibility of leakage or even pipe breakage during subsequent transportation.
PE has excellent resistance to most household and industrial chemicals. Moreover, the low-temperature impact resistance of PE pipes is very good, and the low-temperature embrittlement temperature of polyethylene is low, which can be safely used within the temperature range of -60-60 ℃. Convenient connection for PE pipelines. Important use of hot melt connection and electric melt connection to integrate the pipeline system; And it has good resistance to water hammer pressure, welded joints integrated with PE pipes, and PE pipes have the ability to resist underground movement and end loads.
The molten material used in the welding of PE pipes is cooled down on the inner surface of the sizing sleeve, forming a layer of agglomerated surface layer to ensure accurate outer diameter of the pipes and stable and normal traction and extrusion of the pipes. Therefore, the structure and processing cooling of the sizing sleeve.