PE plastic pipe surface is concave, how could it happen?
Measures should be taken to protect or adjust the connection process under cold weather (--5 degrees below) and strong wind conditions.
Pipe and pipe fittings should be placed in the construction site for a certain period of time after the connection, so that the pipe and pipe temperature is consistent
Special heating tools shall be adopted according to different interface forms, and no open flame heating pipes and fittings shall be used. 3, the use of welding methods connected to the pipeline, should use the same brand material of pipe and pipe fittings, for the performance of similar, must pass the test, qualified before.
Before the pipeline connection, the pipe, pipe fittings and accessory equipment shall be checked according to the design requirements, and the appearance inspection shall be conducted at the construction site, and may be used in accordance with the requirements. Main inspection items include pressure rating, external surface quality, matching quality, consistency of material, etc..
When the pipe connecting pipe end should be clean, every day when the nozzle should be temporary plugging, prevent debris into the tube. 7, after the connection of the pipeline should be carried out visual inspection, unqualified immediately rework.
