In pipe fitting sizes such as -4AN what does AN stand for?

1. What does an stand for in fittings?
2. How do you determine your fitting size?
3. What is the abbreviation for pipe thread?
4. What does NPT stand for?
5. How is pipe size measured?
6. What are the 4 classifications of plumbing pipe and fitting materials?
7. What are the types of fitting?
8. What is the name of pipe fittings?

What does an stand for in fittings?

Historical Context of the AN Fitting

AN stands for Air Force – Navy Aeronautical Design Standards (also known as “Army Navy”) that are used in U.S. Military aviation applications. These fittings are made to meet strict performance standards related to the aeronautical industry.

How do you determine your fitting size?

As mentioned earlier, you can always identify AN fittings based on the male thread size (outside diameter). These sizes are constant regardless of brand, hose type, or fitting configuration. If your fitting has a convex 37 degree flare at the end, the threads will tell you the AN size (and vice-versa).

What is the abbreviation for pipe thread?

NPT is the abbreviation for National Pipe Thread Tapered, which is the U.S. standard for tapered threads used to join pipes and fittings. They were established as a standard by the American National Standard Pipe Thread, commonly referred to as the national pipe thread standards.

What does NPT stand for?

NPT: National Pipe Thread (tapered) is a U.S. standard for tapered threads.

How is pipe size measured?

Tubing is measured by the OUTSIDE DIAMETER (O.D.), specified in inches (e.g., 1.250) or fraction of an inch (eg. 1-1/4″). Pipe is usually measured by NOMINAL PIPE SIZE (NPS). ... For example, a 1-1/2″ pipe size actually has an outside diameter of 1.9″ NOT 1.5″.

What are the 4 classifications of plumbing pipe and fitting materials?

There are five main types of plumbing pipe materials that are still in use today: copper, galvanized steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), and cross-linked polyethylene (PEX). Chlorinated polyvinyl chloride (CPVC) is also used.

What are the types of fitting?

There are many different kinds of fittings, made from a variety of materials: some of the most common types are elbows, tees, wyes, crosses, couplings, unions, compression fittings, caps, plugs and valves.

What is the name of pipe fittings?

When two ends of pipes are joined, the pipe fitting used is called union. A union is made of three parts namely a nut, a male end and a female end. The male and female ends are assembled with the support of the nuts, and necessary pressure is made to connect the joint.