Sewer pipes are pipes used to discharge used water. Wash your face, vegetables, urinate, etc. It is discharged into the sewer through the sewer pipe. Sewage and wastewater from sewer pipes, kitchens and bathrooms cannot be discharged together. DN50 is used for kitchen sink, DN50 for floor drain, DN75 for combination of the two, DN50 for toilet as long as it is not a toilet, and DN 100 for toilet and pipeline behind the toilet. The meaning of DN: the character Ф indicating the nominal diameter of the pipeline: the external diameter of the pipeline indicates DN15-Ф 22mm, DN20-Ф 27mm DN25-Ф 34mm, DN32-Ф 42mm DN40-Ф 48mm, DN50-Ф 60mm DN65-Ф 76 (73) mm and DN80-Ф. For example, the seamless steel pipe with outer diameter 108 and wall thickness of 5 mm, I hope my answer can help you, and I wish you a smooth decoration!
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