306 2007/1 TAPERED PIPE THREADS R, Rc & NPT – PITCH DIAMETER Ref. DS/ISO 7-1 PIPE THREADS WHERE PRESSURE-TIGHT JOINTS ARE NOT MADE ON THE THREADS (WHITWORTH) & ANSI/ASME B1.20.1 Pipe Threads, General Purpose FMS Type 25 E 0 is the internal measuring point and E 1 is the external measuring point R Taperthreads, British Standard Pipe Taper thread (BSPT). These are sometimes denoted by the letter R, for example R 1/2" means a taper 1/2 inch BSP thread. Just to confuse things, often the T in BSPT refers to Thread and doesn't indicate either Taper or Parallel. Typical sizes and uses are : 1/4 Inch BSP - Compressed air connectors. ANSIASME B1.20.3 (NPT - National Pipe Tapered Thread) NPT size Actual Pipe O.D. (inches) Threads per Inch (also called Pitch) Length of Engagement Hand Tight Hand Tight Turns Wrench Makeup Turns Length of Effective 1-1/2” 1.900 11.5 0.420 4.50 3.25 0.724 1-47/64 2” 2.375 11.5 0.436 5 3 0.756 2-7/32 2-1/2” 2.875 8 0.682 5.50 3 1.136 2 Asthe name suggests a Screwed Square Plug 3000LB Threaded is a threaded kind of fitting. Such type of fitting i.e. the ASME B16.11 Threaded Plug has been designed to be used for an NPT thread and fittings. This Forged Screwed Square Plug allows the buyer with an ease in installation. The npt threaded plug dimensions keep the port protected 58 NPT : Pipe and Fitting Thread Dimensions and Tolerances. All the relevant data for this tread in one spot. 5-8 NPT : Pipe and Fitting Thread Dimensions and Tolerances. 0.1" (2.54 mm) L1 gage Tolerance (+/- 1 Turn) (L1) 0.125" (3.175 mm) Thread Truncation (f) 0.0041" (0.104 mm) 0.0078" (0.198 mm) Tapper angle Variation (ß) 34-14 NPT - Internal (Fitting) Basic Thread Dimensions. For interpertations of the terms scroll down to the drawings below the table. Property. Inch. mm. Nominal Pipe Size (Ø) 3/4". 2sjp. NPTThread Calculator for NPT thread dimensions according to ANSI/ASME B1.20.1 standard. - For left hand threads, include LH to the designation. (Example: 1/4 - 18 NPT SocketWeld Coupling Dimensions. NOMINAL PIPE SIZE. OUTER DIAMETER. SOCKET BORE DIAMETER. BORE DIAMETER OF FITTINGS. BORE DIAMETER OF FITTINGS. BORE DIAMETER OF FITTINGS. WALL THICKNESS. # 3000. FlangeMaterial. Over 1 in. and over 25 mm stainless steel fittings use stainless steel ferrules with PFA coating. Applications above 450°F (232°C) require silver-plated front ferrules and uncoated back ferrules. To order fittings with silver-plated ferrules and uncoated back ferrules, add BM to the ordering number. For5/8, 3/4, 7/8 and 1 in.; 16, 18, 20, 22 and 25 mm tube fittings, in all materials except for aluminum and brass, it is a best practice to preswage the ferrules Commonly used NPT thread sizes including 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1+1/4, 1+1/2, 2, 2+1/2, 3, 4, 5, and 6 inches, can be found on most U.S pipes and fittings. The DIN3852, Part 1. These connectors form their seal between the male half and the smooth surface of the female half, using a combination of rings or washers between their parallel threads. ISO 261 Metric threads. Metric Thread Size. Male Thread O.D. (mm) Female Thread I.D (mm) M8 x 1.0. 8.

1 2 npt thread dimensions in mm