Pipeline Engineering

ASME B31.4 - Reinforcement of Weld Branch Calculation (Demo)

Branch connections may be made by welded connections for pipeline systems designed in accordance with ASME B31.4. This tool was developed based on ASME B31.4 to help you determine if a reinforcement member is required. If yes, this tool can also verify your design to ensure it meets the minimum requirements of welded branch connection reinforcement.

Imperial Metric

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Header Details

Pipe Nominal Size Select "Custom" for manual pipe OD and wall thickness inputs.

Schedule Select "Custom" from "Pipe Nominal Size" above for manual pipe OD and wall thickness inputs.

Pipe Grade

SMYS of Header

psi

Branch Pipe Details

Pipe Nominal Size (NPS)

Schedule

Pipe Grade

SMYS of Branch Pipe

psi

Design Criteria for Welded Branch Connections

Actual or Nominal Thickness of Added Reinforcement, M

inch

Reinforcement of Single Openings - ASME B31.4 Para. 404.3.5

Reinforced Plate Selection - Complete Encirclement Type (Fig. 404.3.4-1)

Reinforced Plate Selection - Localized Type (Fig. 404.3.4-2)

PipeEng

ASME B31.4 - Reinforcement of Weld Branch Calculation (Demo)