Are there metric pipe fittings?
Metric Pipe Fittings identifying, sizing and torquing both BSPP Threads and BSPT Threads. These parts may or may not come standard with a Nickel Plating. Conversion Fittings can be found in this group that will take a BSPP or BSPT to National Pipe Thread (NPT).
Does BSP and NPT fit together?
NPT and BSP threads are generally not compatible due to the differences in their thread forms. NPT and BSP thread pitches (threads per inch, TPI) are listed below. You can use 1/2″ and 3/4″ NPT and BSP fittings together, but all others will be incompatible and will therefore leak.
Is BSP the same as NPT?
Both NPT and BSP are pipe thread standards for screw threads used on pipes and pipe fittings to seal pipes. Both threads have the same pitch and the familiar shaped peaks and valleys. In BSP, they are rounded. Secondly, the NPT angle of the thread is 60 degrees and the BSP angle is 55 degrees.
What are metric pipe sizes?
Metric Tube and Pipe Dies
| OD typically referred to as… | Actual Outside Diameter (OD) in mm | Actual Outside Diameter (OD) in inches, decimal |
|---|---|---|
| 9 mm Tubing | 9.53 mm | 0.375″ |
| 12 mm Tubing | 12.7 mm | 0.500″ |
| 15 mm Tubing | 15.9 mm | 0.625″ |
| 19 mm Tubing | 19.1 mm | 0.750″ |
How are metric pipe threads measured?
For Metric parallel threads, taking a caliper reading of the threads outer diameter in millimetres (mm) will give a reading of the exact thread size but not the thread pitch. For example, a caliper reading of 12.03mm indicates it is very likely a 12mm thread.
Can you screw NPT into NPT?
Both NPT and NPS have the same thread angle, shape, and pitch (threads per inch). However, NPT threads are tapered and NPS threads are straight (parallel). While NPT and NPS threads will engage, they do not seal properly with each other.
How do NPT threads work?
NPT (or National Pipe Taper) is a U.S. standard for tapered threads widely used on pipes and fittings for over 100 years. NPT connections rely on thread deformation- a metal to metal sealing design where the threads of the connectors themselves form together.
Is 15mm the same as 1 2 inch?
1/2″ pipe refers to the internal diameter, 15mm pipe is the external diameter… In my experience they are so similar that you can even use solder fittings without a worry, so using 15mm olives on 12″ pipe isn’t a problem. Occasionally they are very marginally tight, but not enough to be an issue.