Everything you wanted to know about Schedule 40 and Schedule 80 PVC Pipes and PVC Fittings
This lens will teach you the difference between Schedule 40 and Schedule 80 PVC Pipe and PVC Pipe Fittings. Look it over, and let us know what you think. Sign our Guestbook and ask us questions.
Schedule 40 and Schedule 80 PVC Pipes
The main difference between Schedule 40 and Schedule 80 PVC pipes is the wall thickness. Schedule 40 pipes have a thinner wall, and are therefore more suited for applications with lower water pressure inside the pipe. The same size Schedule 40 and Schedule 80 pipes will have the same outer diameter, but will differ in inner diameter, so they can be used interchangeably, or in conjunction for one project.
Schedule 80 PVC pipe is advantageous when the pipe size required is over 2" as the ratio of wall thickness to pipe diameter allows for higher strength. Strength is measured in resistance to water pressure in PSI (Pounds per Square Inch). The higher the PSI it can withstand, the stronger the pipe is.
Schedule 80 PVC pipe is advantageous when the pipe size required is over 2" as the ratio of wall thickness to pipe diameter allows for higher strength. Strength is measured in resistance to water pressure in PSI (Pounds per Square Inch). The higher the PSI it can withstand, the stronger the pipe is.
Schedule 40 and Schedule 80 PVC Fittings
PVC fittings follow the same basic rules as PVC pipes when it comes to Schedule 40 and Schedule 80 with one minor exception. Again, the main difference here is wall thickness. Schedule 40 PVC fittings have thinner walls than schedule 80 PVC fittings. As before, Schedule 80 is going to be a stronger fitting with regards to PSI.
The difference between PVC pipes and fittings is that PVC fittings will have the same inner diameter, but the outer diameter is what will differ between the two schedules.This assures that a 2" schedule 80 pipe will fit a 2" schedule 40 fitting, allowing for interchangeability of pipes and fittings in a given project.
The difference between PVC pipes and fittings is that PVC fittings will have the same inner diameter, but the outer diameter is what will differ between the two schedules.This assures that a 2" schedule 80 pipe will fit a 2" schedule 40 fitting, allowing for interchangeability of pipes and fittings in a given project.
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Schedule 40 and Schedule 80 PVC Pipes and Fittings
Here's just a small sample of the Schedule 40 and Schedule 80 PVC Fittings and that we have to offer.
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Tables of Strength vs. Size
This page has some great tables that give the max strength in PSI for a given pipe size in either Schedule 40 or Schedule 80.
Take a look here to see what schedule you will need for your next PVC project.
Take a look here to see what schedule you will need for your next PVC project.
Which Schedule do you prefer?
This poll is to find out which schedule is most preferred among contractors, plumbers, and plain DIY-ers.
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To Make a Long Story Short
Use Schedule 40 and Schedule 80 PVC pipes and PVC Fittings interchangeably based on your project specifications. Use the strength chart above to see what Schedule would be best for you.
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