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Specific design key points of plastic-coated steel pipes
2023-05-11 09:49
1. Meet the service life requirements. Considering the purpose of use, new pipes, especially plastic pressure pipes, should first consider the service life rather than the allowable load, because the pipe itself is a permanent structure, and its service life should be consistent with the service life of the building.
2. The inner diameter of the plastic-coated steel pipe must meet the flow requirements. The inner diameter of the plastic-coated steel pipe, the flow rate, and the flow velocity are closely related. On the premise of meeting the flow requirements, the flow rate should be selected to determine the inner diameter of the plastic-coated steel pipe.
3. The wall thickness of the plastic-coated steel pipe must meet the pressure requirements. The rated pressure of the pipe is closely related to the wall thickness of the plastic-coated steel pipe and the ring stress of the pipe itself. If the pipe is selected, it means that the ring stress of the pipe has been determined. The rated pressure of the pipe is only related to the wall thickness of the pipe. Therefore, the wall thickness of the pipe must meet the requirements of the rated pressure.
1. Meet the service life requirements. Considering the purpose of use, new pipes, especially plastic pressure pipes, should first consider the service life rather than the allowable load, because the pipe itself is a permanent structure, and its service life should be consistent with the service life of the building.
2. The inner diameter of the plastic-coated steel pipe must meet the flow requirements. The inner diameter of the plastic-coated steel pipe, the flow rate, and the flow velocity are closely related. On the premise of meeting the flow requirements, the flow rate should be selected to determine the inner diameter of the plastic-coated steel pipe.
3. The wall thickness of the plastic-coated steel pipe must meet the pressure requirements. The rated pressure of the pipe is closely related to the wall thickness of the plastic-coated steel pipe and the ring stress of the pipe itself. If the pipe is selected, it means that the ring stress of the pipe has been determined. The rated pressure of the pipe is only related to the wall thickness of the pipe. Therefore, the wall thickness of the pipe must meet the requirements of the rated pressure.
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