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Posted on August 25, 2021

Understanding BSP Adaptor Pressure Ratings

As with other fitting types, BSP fittings have such a broad range of applications and are made from a wide variety of materials. In addition to steel, stainless steel, other alloys and brass, BSP thread-style fittings fulfill applications where the materials are cast iron, bronze or plastics, such as PTFE, PVC and nylon.

Thrust-Wire Fittings

Thrust wires are small, rigid wires inserted into holes in a nut or fitting, providing increased durability of the connection. Thrust-wire fittings are either BSP (8,000 PSI proof pressure) or JIC (6,000 PSI proof pressure) and are specifically used in high-pressure, high-vibration applications. These special fittings are some of the most robust and reliable on the market.

Though they are not as popular as many other fitting configurations due to additional installation steps, they are still very applicable where there is high vibration. They are manufactured from high-grade carbon or stainless steel, depending on the pressure and fluid or gas medium. They are made with localized induction hardening for increased strength on surfaces that can experience high torque-stresses. This allows thrust-wire fittings to resist higher tightening torques and internal wear.

Regardless of their ability to withstand higher pressures, the thrust wires can be ejected from the assembly, potentially causing catastrophic failure. To safeguard the assembly, after the thrust wire is inserted, the hole should be deformed to keep the wire from slipping out under vibration.

Posted on August 18, 2021

Understanding BSPP Parallel and BSPT Tapered Threads

BSP threads are derived from British Standard Whitworth (BSW), which is an imperial-unit-based screw thread standard. BSW threads were developed by Joseph Whitworth in 1841 and later adopted as a British standard. The Whitworth thread was the world's first national screw thread standard, which gave wave to the vast popularity of BSP.

There are two types of BSP thread styles:

• BSP parallel threads
• BSP tapered threads

British parallel threads are often referred to as “G” threads, while British tapered threads are referred to as “R” threads. Each is measured in nominal sizes, and the threads are measured in threads per inch.

Posted on August 11, 2021

What's the Difference Between BSP and NPT Thread Styles?

The two most popular thread styles in the world are British Standard Pipe (BSP) and
National Pipe Taper (NPT). They are the international standard for joining fittings and pipes. However, the difference between these thread styles is something to note.

Some additional information in one line

 

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