Thicker pipe wall is required to contain higher fluid pressures. For the same fluid pressure, a thicker pipe wall is required for a larger diameter pipe than that required for a pipe of smaller diameter. A schedule of pipe sizes and wall thicknesses has been established by ASTM standards governing manufacturing of pipe. A previous description of pipe wall thicknesses as "Standard", "Extra Strong" and "Double Extra Strong" has been supplanted by a schedule of 10, 20, 30, 40 60, 80, 100, 120 and 160. Schedule 40 pipe generally compares with the previous use of "Standard". For metal pipe, Schedule 80 pipe has a thicker wall and can withstand greater pressures than a Sch 40 pipe. A point of confusion is that for PVC piping, Schedule 80 pipe has a thinner wall than Sch 40 pipe.
Schedule 160 is thicker than 80
In plumbing jargon, "schedule 40" refers to the thickness of the pipe wall. Specifically, it indicates a standard measurement for the thickness of PVC (polyvinyl chloride) pipes and fittings. Schedule 40 pipes are commonly used for residential and commercial plumbing applications due to their durability and ability to withstand high pressure.
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
Bevel inside of sch. 80 to match OD of sch. 40
It is the wall thickness heavier then schedule 20 lighter then schedule 80
The temperature rating for Schedule 80 PVC pipes is typically around 140F (60C).
The pressure rating of Schedule 80 PVC pipes is typically around 300 psi (pounds per square inch).
If you require higher pressure higher wall thickness of pipe you should use sch 80 pipes.
In the electrical industry there are two grades of PVC conduit. Schedule 40 and Schedule 80. The code designates that schedule 80 be used in above ground construction and schedule 40 and/or schedule 80 be used in acceptable underground applications.
The psi rating for Schedule 40 PVC pipes is typically around 480 psi.
DWV pipes are designed for drainage, waste, and venting systems, while Schedule 40 pipes are used for pressurized water systems. DWV pipes have thinner walls and are not suitable for high-pressure applications, while Schedule 40 pipes have thicker walls and can handle higher pressure.
Schedule 40 and schedule 80 have the same outside diameter (OD). The wall thickness is greater on schedule 80 than it is on schedule 40. So on schedule 80 the inside diameter (ID) gets smaller.
Schedule 160 is thicker than 80
The pressure rating of Schedule 40 PVC pipes is typically around 450 psi (pounds per square inch).
In plumbing jargon, "schedule 40" refers to the thickness of the pipe wall. Specifically, it indicates a standard measurement for the thickness of PVC (polyvinyl chloride) pipes and fittings. Schedule 40 pipes are commonly used for residential and commercial plumbing applications due to their durability and ability to withstand high pressure.
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
The temperature rating for SCH 80 PVC pipes is typically around 140F (60C).