How To Measure Bsp Pipe Fittings

The British Standard Pipe Thread or BSP fitting thread is one of the most popular and commonly used threads in the globe today. They are manufactured in two variants, parallel (BSPP) and tapered (BSPT).

Step 1

Measuring BSPP Fittings Determining the specifications of a BSPP fitting is a fairly straightforward process. First, you need to measure the outer diameter of the thread in inches before subtracting ¼ inch from the measurement you took to calculate the thread size. For example, a screw with an outside diameter of 2 ¼ inches will have a thread size of 2 inches.

Step 2

Count the threads per inch to ensure it's a stainless steel BSP fitting in Australia. Once you have this information, you can use it along with your thread size and compare it to a chart like the one pictured here to find your fitting size and specifications.

Is BSP and BSPT Measurement the same?

The measurement procedure for BSPT fitting is almost the same as the procedure above. However, since BSPT fittings are tapered, the outside diameter changes, so the formula is unreliable. Rather than measuring the outer diameter, it is recommended to read the calliper gauge from the inner diameter and refer to the chart as before to determine the inner diameter of the fitting.

Types of BSP Threads

Parallel (straight) thread

British Standard Pipe Parallel Thread (BSPP, also known originally as [1] British Standard Pipe Fitting Thread/BSPF and British Standard Pipe Machine Thread/BSPM). The diameter; is represented by the letter G.

British Standard Pipe Tapered Thread (BSPT)

The diameter of BSP fittings increases or decreases over the length of the thread. The letter R represents it. These can be combined into two types of connections.

Connection Threads

These are pipe threads that provide pressure tightness by joining two threads together. They always use tapered male threads but can have either parallel or tapered female threads. (Tapered female threads for pipes are not common in Europe.)

Long screws

These are used where a pressure-tight connection is achieved by compressing a soft material (such as an O-ring seal or washer) between the male thread face and the socket or nipple face by tightening the lock nut. Parallel pipe thread used.

Pipe Thread Size

At least 41 thread sizes are defined, ranging from 1⁄16 to 18, but ISO 7 contains only 15, and ISO 228 contains only 24. The size number was originally based on the inner diameter (measured in inches) of the steel pipe the thread was intended for, but modern pipe tends to use thinner walls to conserve material, so this nominal size also has a large inner diameter. In modern metric standards, this is simply the size number, the major outer diameter of the male thread for the specified diameter size.

Endnote

Stainless steel BSP fittings in Australia designs from stainless steel suppliers are typically able to withstand these elements, ensuring progress on difficult projects that otherwise might not be possible. Don't miss its benefits. Stainless steel may be a solid solution for your next project.