Minor and Major Dimensions

In the world of plumbing, hydraulic systems, and other industrial applications, choosing the right thread type and understanding its dimensions are crucial. Two common thread types used globally are NPT (National Pipe Thread) and BSP (British Standard Pipe). In this blog post, we will delve into the intricacies of NPT and BSP threads, providing you with a clear understanding of their dimensions and the significance of minor and major dimensions.

What Are Minor and Major Dimensions?

1. Minor Dimension: The minor dimension represents the inside diameter of the pipe or fitting at the base of the threads. It's where the thread starts to narrow or taper. This measurement is crucial for ensuring a proper seal.

2. Major Dimension: The major dimension represents the outside diameter of the pipe or fitting at the peak of the threads. It's the widest point of the threads. This measurement is important for...