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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.

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13y ago

Wall thickness of pipe and pressure rating.

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Pipewall thickness

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Q: What is mean by schedule 80 for Pipes?
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Related questions

What is the difference in application between schedule 40 and schedule 80 cpvc pipes?

If you require higher pressure higher wall thickness of pipe you should use sch 80 pipes.


What is O D and I D of schedule 80 black iron pipe?

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.


What is the difference between schedule- 80 flange and schedule 160 flange?

Schedule 160 is thicker than 80


What are the grades of PVC?

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.


What is the difference between PVC schedule 40 and PVC 80?

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.


Can a schedule forty be a two inch iron pipe?

Yes and it can be schedule 80 and schedule 120


What is schedule 40 PVC pipe?

It is the wall thickness heavier then schedule 20 lighter then schedule 80


What are the price of PVC pipes and fittings?

What is the price for a car? what size pipe? What schedule


When beveling schedule 80 pipe to schedule 40 pipe?

Bevel inside of sch. 80 to match OD of sch. 40


What is the maximum pressure per schedule for GI pipe?

The maximum pressure per schedule for GI pipes varies. For instance, a schedule 40 for a black poly pipe would be 200 psi.


What do you mean shedule of pipe?

Schedule of pipe most commonly refers to the thickness of the wall of the pipe itself. ex...schedule 40 PVC pipe has a thinner wall than sch. 80 PVC


What is the difference between astm a53 astm a120 in thickness of pipe?

The difference in thickness is not by the ASTM grade, but rather by the term "Schedule" - as in Schedule's 10, 40, and 80 - with schedule 10 having the lighest wall thickness, and schedule 80 having the thickest.