Recently, many students have asked about the differences between PT threads and BSPT threads in water conveyance. Therefore, I am sharing some materials I have collected: First, NPT is the American standard thread, BSPT is the British standard thread, and PT is also a British standard thread, specifically the Japanese JIS standard. In fact, BSPT … Read more
1. NPT is a general-purpose American standard tapered pipe thread with a thread angle of 60°. PT thread is a British standard tapered thread with a thread angle of 55°, commonly used for sealing. British pipe threads are fine threads; coarse threads have a larger thread depth, which severely reduces the strength of the external … Read more
Click the above “Public Account” to subscribe! First, NPT is American thread, BSPT is British thread, and PT is also British thread, with PT being the Japanese JIS standard. In fact, BSPT and PT are the same. BSPT/NPT BSPT is the British standard for tapered pipe threads: it refers to a thread angle of 55° … Read more