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

TECHNICAL REFERENCE

Selection summary

Detachable pipe, valve and equipment connections across standards and pressure classes

Flange type, size, class, facing, material, pipe schedule and drilling must be checked as an assembly with gasket and bolting.

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