Difference between water supply pipe and drain pipe

The drain pipe is used for drainages, such as drainage, rainwater, and community drainage on real estate projects. The drain pipe itself has no pressure, can not withstand the pressure, and has no requirements for the health indicators. If you want to distinguish the quality of the pipe, it depends on its toughness and tensile properties. The water supply pipe is self-evident for use in the water supply. Of course, it is also used for the irrigation of farmland. The difference between it and the drainpipe is that it needs to withstand the pressure. If it is for the water supply project, it also needs health indicators. , non-toxic and non-polluting, and other indicators. Main difference: 1. Pressure: the pressure is different. 2. Pipe Diameter: the diameter of the drainpipe is large, generally DN50, the pipe diameter of the water supply pipe is small, generally DN15. Pipe specs: Commonly used PVC water supply pipe specifications are Φ20, Φ25, Φ32, Φ40, Φ50, Φ63, Φ75, Φ90, Φ110, Φ125, Φ140, Φ160, Φ180, Φ200, Φ225, Φ250, Φ280, Φ315, Φ355, Φ400 and so on. The conventional specifications of commonly used PVC pipe drains are as follows: Nominal outer diameters are 32mm, 40mm, 50mm, 75mm, 90mm, 110mm, 125mm, 160mm, 200mm, 250mm, 315mm. 3. Pipe material: Clearwater and sewage have corrosive effects on pipelines, but sewage is stronger. Pipelines used to transport drinking water need to meet drinking water hygiene standards. In general, the water supply to the water pipe is full pipe flow. For hygienic considerations, the flow state of the drainpipe is designed to be a non-full pipe flow, but the drainpipe is not completely unstressed. 4. Different environmental standards: water supply pipes are environmentally friendly, drain pipes are generally not environmentally friendly, and some are also being returned. http://www.tianyanpipes.com/.../correct-pvc-pipe-size-you...