In addition, the ends of pipes and pipe fittings shall be blocked to prevent cool air from passing through the inner wall of pipes and pipe fittings to cool the heating plate and affect the welding quality.
Warm tips after summing up the experience of Junxing β After the precautions for the construction and use of PSP steel plastic composite pipe products and PP-R products in winter, we now briefly talk about the precautions for the construction and use of Junxing PE and pe-rtii butt joint products in winter for your reference.
When the ambient temperature is lower than 5 ℃, after the heat absorption of pipes and fittings is completed, take out the heating plate and complete the docking within 15s to prevent false welding (cold skin) at the heat absorption of pipes and fittings.
4.
1.
When heat is absorbed at the ends of pipes and pipe fittings, there shall be 0.5cm flanging around the pipes and pipe fittings, and then enter the heat absorption time.
In order to prevent freezing damage to the pipeline, it is strictly prohibited to store water in the pipeline when it is not in use.
5.
When the ambient temperature is lower than 5 ℃, windproof and antifreeze measures shall be taken to raise the ambient temperature above 5 ℃ (in the simple room).
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2.
3.
When the ambient temperature is lower than 5 ℃, the heat absorption time is extended by 50%.
