Large-diameter Series B
Large-diameter Series B identifies the second dimensional series in the ASME B16.47 standards context and must remain explicit against Series A. A similar name or nominal size does not establish interchangeability; complete joint geometry, drilling, facing and mating components must be selected from the same project basis. This description clarifies only the Series B identity and publishes no class, size range, dimensions or Fittopipe compliance with a particular edition. Substitution between Series A and Series B requires engineering verification.
Application and duty
Large-diameter flanged joints using the Series B dimensional pattern with all mating components selected on one project basis