# What is difference between BSP and Bspt?

## What is difference between BSP and Bspt?

BSPP is also called G thread, which is BSP parallel thread. To form a seal or connection by 60 cone or washer or O-ring on the boss. And BSPT is a taper thread, it creates a seal by thread. Both Threads have the same pitch and angle 55 degree.

What is the difference between BSPT and NPT?

How are the thread pitches different? NPT/NPS threads have a 60° included angle and have flattened peaks and valleys ; BSPT threads have a 55° included angle and have rounded peaks and valleys.

### What is BSP size?

Minor diameter is the measurement of the inside of a female threaded connection, from thread to thread. BSP Size. Also Known As. Actual Diameter (Imperial) Actual Diameter (Metric)

How is BSP measured?

The easiest way is to count the thread crests over a shorter length, say 1/4″, and simply multiply it by 4. For example, if you count 3.5 thread crests over 1/4″: 3.5 x 4 = 14 threads per inch. Take this measurement and cross-reference it to your thread size in the chart below.

#### What does BSPT mean in plumbing?

British Standard Pipe Taper
BSPT (British Standard Pipe Taper) is similar to NPT except there are important differences. The angle across the flanks of threads (if you sliced the fitting in half long-ways and measured the angle from root to crest to root) is 55 degrees instead of 60 degrees as it is for NPT.

Are BSP and BSPT compatibility?

BSPT & BSPP Male and Female Fittings British Standard Pipe threads are similar in function to NPT threads, but are generally not interchangeable. BSPT male threads seal against threads of fixed BSPT female.

## Are BSPP and BSPT compatible?

That is, a BSPT (tapered) male thread can fit both a BSPT (tapered) and a BSPP (parallel) female since the taper of the male will fit equally into a cylindrical thread. In the case of using a tapered tap on a parallel female, sealing material is recommended to ensure the tightness of the joint.

Is BSPP and BSPT the same?

BSPP (British Standard Parallel Pipe) BSPP comes from the same family as BSPT, but does not share its tapered design. As the name suggests, the thread has a straight shape and is the same width all the way along. A bonded seal ring is therefore needed to make the seal and secure the connection.

### Can you use BSP with BSPT?

The BSPT (tapered) male will mate with a BSPT (tapered) female, or a BSPP (parallel) female. The BSPT male has tapered threads. When mating with either the BSPT (tapered) female or the BSPP (parallel) female port, the seal with made on the threads.

What is BSP in plumbing?

British Standard Pipe (BSP) is the title of the set of technical standards that identifies specific screw threads. Countries all around the world have adopted these standards and put them to use for interconnecting and sealing pipes and fittings.

#### What angle is BSP thread?

55° angle
NPT/NPS threads have a 60° angle and have flattened peaks and valleys (Sellers thread form) where as BSP threads have a 55° angle and have rounded peaks and valleys (Whitworth thread form).

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