We often come to BSP, BSPP, G, and PF threads, and our clients often have questions about the differences among those thread types- here we will share the answers.
What is the difference between BSP and BSPP?
BSP stands for British Standard Pipe technical standards. BSP connection includes two types of threads, one is BSPP which can be straight or parallel; the other one is BSPT, which is tapered. The thread pitch and thread angle is the same 55 degree. BSP is not the same as BSPP.
Is G thread the same as BSPP?
The two types of thread are the same parallel straight. BSPP is the British Standard Pipe Parallel thread and it is also denoted by the letter G (ISO standard). Therefore, BSPP is the same as G.
BSPP vs PF thread
ISO 228, DIN 259, BS2779 British Standard Pipe Parallel thread is called BSPP.
JIS B0202 In Japan this thread is known as PF (also use prefix G) for the parallel thread.
So BSPP is the same as PF.
G = BSPP = BSPF = BSPM = PS
So BSP scope included BSPP, BSPT, G, PF thread; BSPP, G and PF thread are the same. They just have different notations in UK and Japan.
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