Why You Need a Pipe Fittings Chart

When it comes to piping fittings, accurate measurements are key. Pipe fittings and connectors are essential pieces of a piping system, as each pipe fitting and surrounding pieces must meet specific requirements for proper functionality.


Pipe specifications could include temperature/pressure limits, size, connection type, and material. To determine which pipe fitting you need, here is why a pipe fitting chart is the best way to go about this process.

Why Pipe Fittings Are Important

First, what are pipe fittings? A pipe fitting is a piece used to join a pipe section together with other fluid control products including pieces like valves and pumps to create pipelines. The type of fitting used is determined by the application. 


As every piping system is different, the pipe fittings and accessories you need may vary in material, size, or application requirements. Common pipe fitting types include elbow, tee, valves, cap, adapters, gaskets, and coupling.

Why You Need a Pipe Fittings Chart

For the easiest and most accurate way to measure nominal pipe sizes, create a pipe fitting chart using the measurements below to begin.

Male vs. Female Threads

For male threads, measure the Outside Diameter (OD) of your pipe or pipe fitting:

  • Put a string around the pipe
  • Mark where the string touches 
  • Find the length between the tip of the string and the mark you made (circumference) using a ruler or measuring tape 
  • Divide the circumference by 3.14159


For female threads, measure the Inside Diameter (ID) of your pipe or pipe fitting with a ruler or tape measure.


You can find a full pipe fittings chart (a nominal diameter conversion chart) here! Talk to us today for any of your piping material needs or questions. 

Schulte Supply can provide your company with the piping products you need and more. Please contact us today to see how we can fit your project needs.

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