
What is the difference between schedule 40 and 80?
The major difference between schedule 40 and schedule 80 pipe is the wall thickness, inside diameter, and their weight. Schedule 80 will have a greater wall thickness, a smaller inside diameter and a higher weight than Schedule 40 pipe at a given nominal pipe size. Of course, all of these numbers will vary based on the nominal pipe size. There are also many other pipe schedule numbers as well.
Which is heavier schedule 40 or 80?
Two other factors that may play into which schedule PVC you choose are weight and price. Since schedule 80 PVC has a thicker wall, it is heavier than comparable schedule 40 pipe and fittings. That generally makes it more pricey to ship and more difficult to handle when installing large size pipe and fittings.
What does schedule 40 pipe mean?
What does Schedule 40 mean? The pipe schedule refers to the pipe wall thickness. The higher the schedule, the thicker is the pipe wall. For example: 2-inch nominal size steel pipe: schedule 40 has a wall thickness of 0.154 inches and schedule 80 has a wall thickness of 0.218 inches.
Is Schedule 40 or 80 thicker?
Though the outside diameter of a schedule 80 pipe and a schedule 40 pipe are the same, 80 pipe has thicker walls. This standard of measuring pipe came from a need to have a universal system for referring to PVC.

Which is stronger PVC Schedule 40 or 80?
Due to the thicker walls, schedule 80 PVC is not only able to handle higher PSI, it is also more resistant to bending and breaking than schedule 40 PVC.
Which PVC pipe is strongest?
Thickness matters when it comes to what the PVC pipes will be used for. Schedule 80 is better at withstanding pressure since it is thicker and therefore stronger.
What is difference between schedule 40 and 80 PVC?
The major difference between schedule 40 and schedule 80 pipe is the wall thickness, inside diameter, and their weight. Schedule 80 will have a greater wall thickness, a smaller inside diameter and a higher weight than Schedule 40 pipe at a given nominal pipe size.
When should you use Schedule 80 PVC?
What is schedule 80 PVC used for? Because schedule 80 PVC is a thicker pipe, it is usually is used for applications that are commercial or industrial in nature. These more demanding applications generally require piping that will stand up to high pressures and harsh environments.
Can Schedule 40 PVC be used above ground?
1.2. 1 Schedule 40 rigid PVC conduit and fittings are for aboveground use indoors or outdoors exposed to sunlight and weather, and for underground use by direct burial or encasement in concrete.
What is Schedule 40 PVC pipe used for?
You are probably most familiar with schedule 40 PVC pipe. It's the white pipe you see used for drainage around buildings, and it can be found in local hardware stores. This pipe is best suited for drainage, irrigation, and other cold water systems.
Can Schedule 80 PVC be used outside?
Schedule 40 and Schedule 80 listed electrical conduit that has been tested for sunlight resistance according to UL651 requirements is approved for continuous outdoor exposed use.
Which pipe is best for outdoor use?
Polyethylene Pipe Polyethylene pipes are used in a wide range of pipes for drainage, irrigation, water service and even some varieties for underground gas transport. It is durable and provides long-term resistance to environmental conditions in outdoor and underground uses.
What schedule PVC for main water line?
Schedule 40 PVCSchedule 40 PVC or copper is the best way to go with water mains.
What's the difference between white and black PVC?
One easy way to tell ABS and PVC apart is that ABS pipes are black and PVC pipes are white. But since pipes aren't meant to be seen, plumbers are usually more interested in other qualities. For example, PVC is more flexible, but ABS is stronger and more shock resistant.
Where is Sch 80 PVC required?
The only time schedule 80 PVC conduit would be required is when the service cable is exposed to physical damage. The AHJ needs to determine if the cables are exposed to physical damage since there is not a definition of physical damage in the code.
What is black PVC pipe used for?
Like ABS pipe, PVC pipe is used for drain, waste, and vent piping systems and as insulation for electrical cables. It's versatile and durable and the choice for professionals and DIYers alike.
What is the strongest type of pipe?
Pipe Strength In general, stainless steel piping is the strongest of the two.
What is the best PVC?
The best PVC glue for high-pressure applications is Type P PVC Glue. The P stands for pressure, and it means you can use it for high-pressure applications, including potable water.
Is Schedule 40 PVC for pressure?
PVC Schedule 40 Pressure Pipe features make it ideal for use in numerous industrial, commercial, municipal and residential applications. Like SDR pres- sure pipe (see page A-24) Schedule 40 has a built-in long term pressure safety factor of 2 to 1.
How much weight will PVC pipe hold?
Except for large pipes built for industrial use, most of the PVC pipes we use in domestic and light commercial settings are not built to withstand heavy loads of more than 28 pounds. The average weight PVC pipe can hold horizontally is about 28 pounds.
What is schedule 40 PVC?
Both schedule 40 and 80 PVC are used widely around the world. Each one has its benefits in different applications. Schedule 40 pipe has thinner walls, so it is best for applications involving relatively low water pressure.
What is the difference between schedule 40 and schedule 80?
To give you an idea of the size difference, 1” schedule 40 PVC pipe has a .133” minimum wall and 450 PSI, while schedule 80 has a .179” minimum wall and 630 PSI.
Is schedule 40 the same as 80?
Though the outside diameter of a schedule 80 pipe and a schedule 40 pipe are the same, 80 pipe has thicker walls. This standard of measuring pipe came from a need to have a universal system for referring to PVC. Since different wall thicknesses are beneficial in different situations, the ASTM (American Society for Testing and Materials) came up with the schedule 40 and 80 system for classifying the two common types.
Is schedule 80 more expensive than schedule 40?
A PVC pipe’s schedule has to do with the thickness of its walls. Maybe you've seen that schedule 80 pipe is slightly more cost ly than schedule 40.
Can schedule 40 parts be used in schedule 80?
Your pipe line is only as strong as your weakest part or joint, so even one schedule 40 part used in a higher pressure schedule 80 line can cause severe damage.
Is 40 PVC good for irrigation?
If you plan to take on a home repair or irrigation project, schedule 40 PVC is probably the way to go. Even schedule 40 PVC is capable of handling impressive pressure, and it is likely more than adequate for any home application.
Can schedule 80 and 40 PVC pipe be used together?
This means schedule 80 pipe will have a slightly more restricted flow – even though it may be the same pipe diameter as an equivalent schedule 40 pipe. This means schedule 40 and 80 pipe do fit together and can be used together if necessary .
What is the crush strength of PVC pipe?
Collapse pressure (or PVC pipe crush strength) is the amount of outside pressure a pipe can take before it starts collapsing inwards. This is an important measurement when burying pipe for subterranean applications. To test this type of strength, you can place weight on a pipe until it starts buckling. As with burst pressure, the amount of collapse ...
Why is PVC pipe bad?
PVC pipe often gets a bad rap because it cannot handle as much pressure as various types of metal pipe. However, smaller sizes of PVC pipe, especially schedule 80, can handle plenty of pressure for most home and business uses. Unlike tensile strength, burst pressure decreases as pipe size increases.
How to measure tensile strength of PVC pipe?
PVC pipe tensile strength can be measured by hanging weight from the pipe until it bends or cracks.
Does burst pressure decrease with pipe size?
Unlike tensile strength, burst pressure decreases as pipe size increases. The smaller pipes are far less likely to fail due to internal pressure problems. If you look closely you will notice that 2.5" pipe has a slightly higher burst pressure rating than 2", oddly.
Can PVC withstand pressure?
It can withstand a substantial amount of exterior pressure. There are other ways of measuring the strength of PVC pipe strength, but those would require much longer explanations. These three types of measurements answer most questions our customers have concerning the strength and structural integrity of PVC pipe.
Is PVC pipe stronger than metal?
In conclusion, PVC is not as strong as metal, but is often the perfect choice, especially when you are on a budget! Shop Schedule 80 PVC Pipe. Shop Schedule 40 PVC Pipe.
Is Schedule 80 PVC stronger than Schedule 40?
As with burst pressure, the amount of collapse pressure PVC pipe can withstand decreases as size increases. Schedule 80, as is the case in all three strength measurements, is much stronger than schedule 40 PVC. It can withstand a substantial amount of exterior pressure.
What is the difference between schedule 40 and schedule 80?
Schedule 40 PVC conduit has a thinner wall than schedule 80 PVC conduit. Both Schedule 80 and 40 PVC have the same outside diameter. This smaller inside diameter of the schedule 80 OVC conduit allows less room for pulling wire through the same outside diameter conduit. In addition, there are other building code requirements for using PVC conduit.
What is scheduling PVC?
PVC conduit comes in several different styles and types. The scheduling on PVC pipe is an indication of the wall thickness of the pipe. When speaking of PVC conduit, the schedule rating has nothing to do with pressure capabilities or testing. The different styles of PVC electrical conduits have different characteristics and use.
Why Use Conduit and not Romex?
Sometimes it is necessary to use conduit to protect the wiring from potential hazards or damage. In these cases, the common practice is to run THHN or THWN wire inside the conduit. To save money, electricians tend to use the most economical method of running electrical services. Electricians install conduits when the building code specifies its use.
How to cut PVC conduit?
Make sure you allow for the length of the conduit that fits into the fittings on the end. Use a hacksaw, backsaw or PVC cutting shears to make the cut. Keep the end of the cut square. Use the utility knife to remove any burrs or rough edges on the PVC conduit.
What is PVC conduit used for?
PVC conduit has many uses in both new construction and remodel construction for residential and commercial applications. Typically, PVC electrical conduit is available as schedule 40 or schedule 80. Each has s specific set of uses, and local building codes usually specify these applications.
Which is lighter, PVC or metallic?
PVC conduit is lighter in weight than metallic tubing conduits.
Is PVC conduit conductive?
PVC conduit is non-conductive. Most installations using PVC conduit require an extra green wire in the PVC conduit for grounding purposes. This extra wire adds cost and time to the project.
