BSPTβ British Standard Pipe Thread Taper NPT 3 1/2 NPT 8 TPI 95.25 mm 4 BSPT 11 TPI 108.00 mm 4 NPT 8 TPI 107.95 mm 5 BSPT 11 TPI 134.00 mm 4 1/2 NPT 8 TPI 120.65 mm 6 BSPT 11 TPI 161.00 mm 5 NPT 8 TPI 134.15 mm 6 NPT 8 TPI 161.15 mm
Pipesare identified by "nominal" or "trade" names that are loosely related to the actual dimensions. For instance, a 2-inch galvanized steel pipe has an inside diameter of about 2 1/8 inches and an outside diameter of about 2 5/8 inches. In plumbing pipe size is referred to as nominal pipe size - NPS, or "Nominal Pipe Size". The metric
Thereare two types of NP threads: NPS: Straight threads, meaning the male and female threads have a constant major diameter or minor diameter across the threadβs length. NPT: The male and female threads are tapered. NPT threads are more commonly used. NPT Thread specifications are based on ANSI B1.20.1 and the thread
Specificationsof International Thread Standards. American
GHT(3/4β) β 1.0625 ODM, 11 1/2 TPI NOTE: Female NPT (Tapered Pipe) thread is not availabe on hose swivel nuts. ODM β Outside Diameter of the Male IDF β Inside Diameter of the Female TPI β Threads per Inch. GHT (3/4β) β 1.0625 ODM, 11 1/2 TPI NOTE: Female NPT (Tapered Pipe) thread is not availabe on hose swivel nuts.
. 378 451 442 83 104 64 413 207
1 2 npt thread dimensions in mm