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      The quality of every project is determined by various small details. Therefore, based on the work experience of netizens, we have summarized the problems that should not be present in the construction of water supply and drainage pipelines, analyzed the specific reasons, and proposed some solutions! The reason why the rainwater pipe is not connected with elastic joint and pipe hoop: because the wall thickness of the rainwater pipe is relatively thin, when encountering a rainstorm, the vacuum is simply formed in the pipe, which causes the rainwater pipe to be sucked flat and burst.

      Solution: It is necessary to use a straight water joint for connection during equipment installation. The main two effects of a straight water joint are: connecting the pipeline Used for pipeline ventilation, overflow, and elimination of elastic margin. PE and PVC-U pipes cannot be used in hot water applications: the normal water temperature of PE pipes cannot exceed 40 ℃; The normal water temperature for PVC-U pipelines should not exceed 45 ℃. Example: For example, using the company's PVC-U water supply pipe D50 1.0MPa pipe, because it is connected to the solar water heater pipeline.

      Without considering the situation of hot water reflux, the pipeline is often filled with hot water, ultimately causing the D50 pipe to expand to an outer diameter of 110 due to thermal expansion, resulting in severe deformation. Water supply pipelines should not be backfilled or concealed without passing the pressure test. Reason: Used to detect the strength and airtightness of pipelines, in order to prevent water leakage during operation, resulting in greater loss.

      Solution: After the equipment is completed, the water supply pipeline should first undergo pressure testing in accordance with relevant technical regulations. Backfilling and concealed laying should be carried out after ensuring that the pipeline does not show any water leakage. A water supply pipeline with a large drop cannot be without breathable equipment. Reason: When the water supply pipeline has a large drop or a long interval, water hammer or vacuum negative pressure will form inside the pipeline, causing the pipeline to suck or be damaged.