The input values and results can be done either in European or American units. The required pressure p’ acc. to the Pressure Equipment Directive can be determined selectively.

ASME Section I. - Power Boilers

The PROBAD module "ASME Section I." is used to calculate the strength of the parts under internal pressure:

  • Cylindrical shells with up to 20 nozzles and up to 10 nipple fields and their interactions
  • Dished ends and hemispherical ends with up to 10 nozzles and their interactions
  • Flat circular and non-circular ends with centered nozzle

The required pressure p’ acc. to the Pressure Equipment Directive can be determined if required.

ASME B31.1 - Power Piping

The PROBAD module ‘ASME B31.1’ includes the following parts for pipes under internal pressure in plant design and boilers industry:

  • Straight tubes with up to 10 nozzles and their interactions
  • Bent tubes and elbows

The materials can be selected in accordance with ASME B31.1, Appendix A, ASME II-D for ASME I or VIII.

ASME B31.3 - Process Piping

The PROBAD module "ASME B31.3" includes the following parts for pipes under internal pressure in petroleum refineries and chemical plants:

  • Straight tubes with up to 10 nozzles and their interactions
  • Bent tubes and elbows

The materials can be selected in accordance with ASME B31.3, Appendix A / K (High Pressure), ASME II-D for ASME I or VIII.

ASME Section VIII., Division 1 - Pressure Vessels

The PROBAD module "ASME Section VIII, Div. 1" provides strength calculations of the following parts under internal and/or external pressure:

  • Cylindrical shells with up to 10 nozzles and up to 10 nipple fields and their interactions
  • Conical shells and ends (concentric and eccentric cones) with up to 10 nozzles and their interactions
  • Dished ends and hemispherical ends with up to 10 nozzles and their interactions
  • FIat unstayed ends with centered nozzle
  • Dished covers with flanges (spherical dished covers) under internal pressure
  • Flanges, single and pair, including bolts under internal pressure
  • Tube sheets for heat exchangers according to ASME for U-tube heat exchanger, fixed tube sheet heat exchanger and heat exchanger with immersed floating head and heat exchanger with externally or internally sealed floating head

The materials can be selected in accordance with:

  • ASME II-D for ASME VIII.
  • ASME II-D for ASME I.
  • ASME B31.1, Appendix A
  • ASME B31.3, Appendix A or Appendix K

ASME Pipe series

The PROBAD module "ASME Piping" permits the serial calculation of standard pressure parts under internal pressure in piping systems straight pipes

  • corresponding nozzle tables
  • corresponding bended pipes
  • elbows
  • tees
  • reducers
  • caps
  • flanges
  • blinding plates

The calculation proof can be done optionally according to the codes:

  • ASME Section I.
  • ASME Section VIII. Div.1
  • ASME B31.1 (Power Piping)
  • ASME B31.3 (Process Piping)

As an alternative to the codes the selection of fittings may be carried out by integrated rating tables. The analysis of flanges is provided by integrated P/T-Rating-tables (e.g. acc. to ASME B16.5).
The input values and results can be done either in European or American units.
The required pressure p’ acc. to the Pressure Equipment Directive can be selectively determined.

WRC (Welding Research council)

The modules PROBAD 'WRC 107' and 'WRC 297' are independent applications.

WRC 107 / WRC 537

The PROBAD module " WRC 107 / WRC 537’ is required for calculating stresses resulting from local loads (forces or moments) on cylindrical shells (attachment forms: circular massive, square massive or tubular) and on spherical shells (attachment forms: circular massive and square massive).
Additionally the superposition of several individual load cases is possible, where the superposition also covers single tresses or internal pressure.
At cylindrical shells additionally stresses from internal pressure and bending moments acc. to ASME Section III Class 1 and 2.can be super imposed.
At tube plugs and nozzles an additional proof of the attachment both inside and outside of the intersection area can be requested.

WRC 297

The PROBAD "WRC 297" module provides stress analysis at nozzles in cylindrical shells and nozzles with or without pad reinforcement resulting from 3-axial forces or moments.

Types of calculation available in this module:

  • Re-checking of existing geometries
  • Design of the shell thickness- or nozzle and pad thickness
  • Determination of allowable values of a force or moment component
  • Stress analyses (local and global loads) are additionally provided in accordance with ‘AD-S3/0’, ‘AD-S4’, ‘BS 5500’ or by free input.