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API RP 14E Platform Piping

Calculate API RP 14E platform piping schedules for diameter, wall thickness, mass and weight.

Use the Result Table option to display schedule tables. Refer to the links below for other options. Use the workbook ASME B31.3 data tables to look up allowable stress data.

Reference : API 14E Recommended Practice For Design and Installation of Offshore Production Platform Piping Systems

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CALCULATOR : API RP 14E Piping Diameter And Wall Thickness [FREE]   ±

Calculate API RP 14E piping diameter and pressure design wall thickness from pipe schedule.

The pressure design thickness equals the nominal wall thickness minus the corrosion allowance and fabrication allowance. The corrosion allowance includes mechanical allowances such as threads and damage etc. Use the Result Table option to display the results for the selected diameter.

Tool Input

  • schdtype : Schedule Type
  • diamtype : Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • ttoltype : Wall Thickness Fabrication Tolerance Type
    • txu : User Defined Negative Wall Thickness Fraction
    • tfu : User Defined Negative Wall Thickness Allowance
  • c : Wall Thickness Corrosion Allowance

Tool Output

  • ID : Nominal Inside Diameter
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • tf : Wall Thickness Fabrication Allowance
  • tm : Minimum Wall Thickness
  • tn : Nominal Wall Thickness
  • tp : Pressure Design Wall Thickness
  • tx : Wall Thickness Fabrication Fraction
CALCULATOR : API RP 14E Piping Mass Per Length And Total Mass [FREE]   ±

Calculate API RP 14E piping unit mass and total mass from pipe schedule or user defined pipe diameter and wall thickness.

Select the pipe schedule (NPS or ISO), pipe diameter and wall thickness, or use the user defined option. Use the Result Table option to display the pipe schedule with unit mass and total mass for the selected diameter.

Tool Input

  • schdtype : Schedule Type
  • diamtype : Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • modptype : Material Property Type
    • ρpu : User Defined Pipe Density
  • L : Pipe Length

Tool Output

  • ρp : Pipe Density
  • ID : Nominal Inside Diameter
  • M : Pipe Total Mass
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • m : Pipe Mass Per Length
  • tn : Nominal Wall Thickness
CALCULATOR : API RP 14E Piping Unit Mass And Unit Weight (Multi Layer Pipe) [FREE]   ±

Calculate API RP 14E piping unit mass (mass per length) and unit weight (weight per length) for multi layer pipe.

Unit weight can be calculated for dry empty, dry full, wet empty and wet full piping. Change the number of layers on the setup page. The external fluid density is not required for dry pipelines.

Tool Input

  • schdtype : Line Pipe Schedule Type
  • diamtype : Line Pipe Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Line Pipe Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • wltype : Pipe Weight Type
  • WTi : Pipe Liner Wall Thickness
  • ρi : Pipe And Liner Density
  • WTo : Pipe Coating Wall Thickness
  • ρo : Pipe Coating Density
  • ρf : Contents Fluid Density
  • ρb : Displaced Fluid Density

Tool Output

  • IID : Pipe Inner Diameter Including Liners
  • OD : Line Pipe Nominal Diameter
  • OOD : Pipe Outer Diameter Including Coatings
  • SG : Pipe Specific Gravity Relative To Displaced Fluid
  • mb : Displaced Fluid Mass Per Length
  • mc : Contents Fluid Mass Per Length
  • mi : Inner Layers Total Unit Mass
  • mo : Outer Layers Total Unit Mass
  • mp : Pipe Mass Per Length Including Liner And Coating
  • tn : Line Pipe Nominal Wall Thickness
  • w : Pipe Total Weight Per Length Including Contents and Buoyancy
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