Identify a bsp thread size
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Metric Hydraulic Compression Tube Fittings
www.williamsfluidair.comThread Identification BSPP or Metric Thread Metal Seal BSPP or Metric Thread "ED" Rubber Seal BSPT Thread or Metric Taper Thread NPT Thread SAE Male Thread (O-ring boss) O-ring Seal ISO6149 Metric Thread O-ring Seal BSP Threads Dash Size Designation Thread O.D. (inch) Thread O.D. (mm) Thread Pitch (T.P.I.)-2 1/8-28, R1/8, G1/8 0.383 9.73 28
Pipe thread sizes – BSP Threads Corresponding pipe
www.irrigationwarehouse.com.auPipe thread sizes – BSP Threads A list of 15 thread sizes are defined by the standards, ranging from 1/16” to 6”. The size number was originally based on the inner diameter measured in inches (25.4 mm) of a steel tube for which the thread was intended, but is in the modern metric version of the standard simply a size number. Major diameter
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pipefittingsdirect.co.ukThe thread flank angle for both tapered and parallel British threads is 55°. NOTE: It is a fairly common mistake to identify a BSPT (tapered) as an NPT. Always remember that NPT threads have a 60° thread flank angle, and BSPT has a 55° angle (this can be verified with a thread gauge). Although BSP is a foreign thread, it isn’t actually metric.