EN 10226-1

What is EN 10226-1?

BSP threads
BSP threads

BS EN 10226-1 specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1/16 to 6 inclusive. It applies to joints made pressure-tight by means of mating of the threads. These threads are taper external and parallel internal, and are intended for use with pipes suitable for threading and for valves, fittings or other pipeline equipment interconnected by threaded joints

Formerly known as ISO 7/1 or commonly referred to as British Standard Pipe (BSP) which is a family of technical standards for screw threads that have been adopted internationally for interconnecting and sealing pipes and fittings by mating an external (male) thread with an internal (female) thread. It has been adopted as the standard in plumbing and pipe fitting, except in the United States, where NPT and related threads are the standard used

Two types of threads are distinguished:

Parallel (straight) threads, British Standard Pipe Parallel thread (BSPP; originally also known as British Standard Pipe Fitting thread/BSPF and British Standard Pipe Mechanical thread/BSPM), which have a constant diameter

Taper threads, British Standard Pipe Taper thread (BSPT), whose diameter increases or decreases along the length of the thread

BS EN 10226-1 specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1/16 to 6 inclusive. It applies to joints made pressure-tight by means of mating of the threads. These threads are taper external and parallel internal, and are intended for use with pipes suitable for threading and for valves, fittings or other pipeline equipment interconnected by threaded joints

First page of BS EN 10226-1
Download BS EN 10226-1