How Do You Determine Pvc Pipe Size For A Project?
• Learn about different sizes and classes of PVC pipe. In the United States, PVC pipe is sold in fractional and inch sizes, and according to class, shown as schedule, example, most potable water pipe is schedule 40. Common sizes of PVC pipe range from 3/8 inch to 24 inch diameter, and from DWV (drain, waste, vent) which can be compared to schedule 20, to schedule 80, the heaviest grade commonly used. Basically, the higher the schedule number, the thicker the walls of the pipe are, and hence, the stiffer the pipe will be. Loading… • Schedule 20 or DWV is used for nonpressurized or low pressure plumbing applications, and is the least rigid pipe. It is commonly used for irrigation systems, sanitary drainage and venting in building plumbing, and for construction projects where flexibility is more important than structural strength. • Schedule 40 is the standard class plumbing pipe for residential and commercial potable water service. It has a burst strength rating of about 160 PSI at 72
