Description

BSPT – British Standard Pipe Taper Thread Plug Gauges

The British Standard Pipe (BSP) technical standards for screw threads has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external (male) thread with an internal (female) thread. It has been adopted as standard in plumbing and pipe fitting. BSPT is also known as R (external thread) and Rc (internal thread), with 1:16 taper thread. It has a pitch angle of 55°.

R ISO-based JIS

Taper pipe threads (R) specified in JIS are used to connect fluid equipments, plumbing parts, pipes where density resistance is necessary for their mechanical connection. The Ojiyas gauges for taper pipe threads (R) are used for inspecting the dimension of such the threads.

R Marks

 

PT Conventional JIS

Taper pipe threads (PT) specified in JIS are used to connect fluid equipments, plumbing parts, pipes where density resistance is necessary for their mechanical connection. The gauges for taper pipe threads (PT) are used for inspecting the dimension of such the threads.

PT Marks

Note:

Female parallel pipe threads are used for male taper pipe threads. Their limit deviation tolerances are different from the female parallel pipe threads (G) or (PF).