NPT and BSPT fittings are the most commonly used taper fittings in the world. NPT fittings are more popular in North America, and BSPT fittings are more popular in the UK and Australia. This blog will guide you the difference between NPT VS BSPT thread.
What is NPT?
NPT thread stand for National Pipe Thread, is the US standard for tapered threads on pipes and fittings. Here’s the features of NPT Fittings:
- Taper angle of 1°47′
- Pitch measured in threads per inch.
- 60° angle between flat crests and troughs.
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- NPT Male Tee
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- NPT Male Nipple
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- NPT Female Couplings
What is BSPT?
BSPT stand for British Standard Pipe Tapered, is an internationally adopted tapered thread for interconnecting and sealing pipes. It is used mostly in Europe and the UK. Here’s the features of BSPT Fittings:
- Taper angle of 1°47′
- Pitch measured in threads per inch.
- 55° angle between flat crests and troughs.
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- BSPT Male Nipple
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- JIC Male to BSPT Female
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- JIS male to BSPT Male
Difference Between BSPT and NPT
- Thread angle: BSPT threads feature a 55-degree thread angle as opposed to NPT threads, which are separated at a 60-degree angle.
- Territory of use: BSPT fittings are more popular in the UK, Europ and some countries of Aisa; NPT fittings are one of the most popular in the US and Canada. However, with the development of globalization, BSPT fittings and NPT fittings have been seen in the every area of the world. So when you buy taper thread fittings, please be sure to ask the sales in deatails.
- Therefore, BSPT threads cannot be used with NPT threads, and these two different types of threads really aren’t compatible with each other.
QC Hydraulics offer all kinds of NPT and BSPT Fittings in stainless steel, please contact us for more details.
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