For example when you say 6 pipe the 6 is the nominal size of that pipe.
Large diameter plastic pipe sizes.
Pvc pipe can come in sizes ranging from 1 8 to 24 and larger.
However for the pipe sizes nps 14 and above outside diameter is the same as nps.
Pvc pipe under 14 does not match up exactly with its nominal size see nominal pipe size and o d.
To understand this concept you have to learn the way pipes are manufactured.
Pvc pipe sizes are different than the size the pipe is called.
Pipe size nps od id schedules wall est.
Nominal pipe size nps is the number that defines the size of the pipe.
One of the most common things people get confused by with pipe is how it is sized and measured.
Below are a series of pvc pipe diagrams and dimension charts to help you find the right sizes or at least get you informed as to the various common sizes available.
The table above shows sizing for schedule 40 pvc pipe in different sizes.
Outer diameter inside diameter and wall diameter as in wall thickness.
The outside diameter o d shown is for standard ips schedule 40 pipe pvc stainless brass steel etc.
The following chart gives standard pipe schedule or pipes sizes as given by ansi asme b36 10m and api 5l.
For example a 1 inch pvc pipe is actually 1 315 inches in outside diameter and 1 029 inches in inside diameter.
This will be the nominal pipe size or the size of fittings you want to order.
Pvc schedule 40 sizes table.
What is nominal pipe size.
Fittings follow this same pattern a 1 fitting has a 1 315 inch opening to accept a 1 inch pipe which actually measures 1 315 inches in diameter.
Schedule 40 pvc pipe is compatible with all formufit external fit and internal fit products.
When it comes to the pvc pipes themselves there are 3 key metrics.
Standard pipe size info chart.
If the pipe is an sdr size with a nominal size of 14 inches or more a marking indicating whether the size is an ips size or a pip size as appropriate for example ips 18 or pip 18.
The material designation code indicating the type of plastic.
