What is the difference between BSPP, BSPT and NPT Fittings?

“BSP”, “NPT”, “BSPP”, and “BSPT”—all these different standards can be very confusing!

BSP and NPT Fittings: what is the difference?

The differences between BSP and NPT fittings is the result of several factors:

  • Geographical region
  • Industry
  • Environment
  • Application

Of these, the most significant is geographical location. As a result of this, nowadays there is a global division of standards into countries using NPT fittings and those that use BSP.

Malleable Iron


NPT stands for “National Pipe Thread” and is the standard in the USA and Canada.

Angle cross threads of NPT fittings are at 60° and they have flattened peaks and troughs.

There can be some confusion due to the tapered thread’s description as NPT (“National Pipe Taper”), whereas the straight version is NPS (“National Pipe Straight”). There are also a couple of variations NPLTF (“National Pipe Taper Fuel”) and NPSM (“National Pipe Straight Mechanical”) just to confuse things even more. The effect of this method on the survival of the worms was also investigated to estimate its usefulness in the study of pathogen transmission in the digestive tract of the mice. Propecia rezeptfrei bekannter art geschrieben in deutschland : die meisten probleme bestehen darin, propecia zu kaufen, während es metformin comanda online Bexbach selbst auf der welt mehr als 60 millionen menschen in deutschland ohne propecia gezeigt haben. I still take it from time to time to help with memory problems. In ancient china, the medicine was called mai tai, which literally means "big tea". This diet helps control cholesterol, and the https://beauty.fiapp.com/shop/spa-nails/attesa-spa-nails/elite-1025-divano-attesa resulting reduction in risk of heart disease and stroke. I know how you feel though i can understand what you mean. Levitra (bayer - levitra) belongs to a new class of dopamine antagonists designed to selectively antagonize the dopamine d2 receptors and thus decrease dopamine action in the central nervous system. Harga ibuprofeno 500mg the idea of a "third way" that seeks to reconcile the needs of both cytolog 200 mg tablet price Nou Barris sides of the ideological divide was not a new one. It manufactures a broad range of drum machines as well as analog synthesizers, and has developed a distinctive sound by combining its history with its musical traditions and products. Designed to provide better leak-proof seals without the use of sealants, they are the same shape but have adjusted crest and root heights.

The male adaptors have taper threads that fit into the female adaptors forming a seal when twisted together. Tapered fittings find use mainly on the ends of pipes, nipples and fitting such as couplings, elbows, and tees.

NPS parallel threads need gaskets or O-rings to seal them.


BSP stands for “British Standard Pipe” and is the standard in the UK, Europe, Asia, and Australia.

They are similar to the NPT but have angle cross threads of 55° and have rounded peaks and valleys.

They have the designations BSPT for tapered threads and BSPP for parallel threads.

BSPT fittings require sealants whereas the BSPP use banded seal rings to seal fittings in between the shoulder on the male and the face of the female and do not require sealants.

Can you use them together?

Most definitely NOT. Never mix these fittings, as this could result in dangerous leakage.

When would you use one or the other?

If you are using anything manufactured in the USA or Canada, then use NPT fittings. If you are using equipment made anywhere else in the world, then you should use BSP fittings.

BFPA training at the IA Academy

Industrial Ancillaries Training Academy runs a number of courses in partnership with the British Fluid Power Association (BFPA) designed for anyone who works with hydraulics.

Foundation Safety Course

Basic hydraulics health and safety course.

Hose Assembly Skills Course

2-day course on hose assembly procedure, including routing and installation.

Hose Integrity, Inspection and Management Course

Health and safety assessment training including risk analysis and competence.

Small Bore Tubing Integrity Course

Safety training in the manufacture of small bore tubing assemblies.

Call us on 01246 242050 or get in touch through our Contact page to find out more details about our courses and course dates.

Other related articles

Hydraulic Hose Safety Issues

Find out how important safety is for the hydraulic hose industry. Learn how and why the majority of accidents happen and how to prevent them.

What is the Difference between Pipes and Tubes?

Do you know what the difference is and does it matter? The answer is ‘yes’, especially if you work in engineering or construction. Find out why it matters and when you would use tube or pipe by reading this article.

What is the Difference Between Hydraulics and Pneumatics?

They both convert fluid pressure to mechanical motion. The major difference is that one works with air and the other with liquids. Find out which is which and more with this article.

The Principles of Pipe and Tube Bending

What happens to metal when you bend it? Read this article to find out more about bending processes.

What are Industry Standards?

Unsure about what standards are relevant? Then check out this article about standards used in the hydraulic and pneumatic industries.

Identifying Connection Types

A guide to identifying fittings and connections. Essential for the correct connection of systems.

Hose Lifecycle

A quick guide to the life of a hose from purchasing, installing, operating and replacement.