EN 12952 - Water tube boilers

The PROBAD module "EN 12952 - Water Tube Boilers” provides the following components for strength calculations due to internal pressure and temperature:

  • Determination of hazard category acc. to PED, Annex II, diagram 5
  • Cylindrical parts with up to 10 nozzles and nipple fields and their interactions
  • Tees
  • Cylindrical shells with Y-branches
  • Pipe bends and elbows
  • Square tubes with single openings and rows of holes in longitudinal direction
  • Spherical shells and dished heads with up to 10 nozzles and their interactions
  • Spherical shells with Y-branches
  • Unstayed flat ends with centered nozzle
  • Lifetime calculation
  • Creep fatigue calculation for all items listed above
  • Calculation of the fatigue strength due to cyclic internal pressure or combined cyclic changes due to internal pressure and temperature for cylindrical shells and spherical shells with up to 10 nozzles; optional calculation of the allowable rate of temperature change, the allowable number of changes for one load cycles, the determination of the usage factor or the equal temperature rate for all load cycles

EN 13480 - Metallic Piping

The PROBAD module "EN 13480 Metallic Piping" provides strength calculations of the following parts under internal and/or external pressure:

  • Cylindrical components with up to 10 nozzles and their interactions
  • Tees
  • Pipe bends and elbows
  • Dished ends and hemispherical ends with up to 10 nozzles and their interactions
  • Reducers (concentric and eccentric cones) with nozzles and their interactions
  • Circular flat ends and plates with up to 10 openings
  • Cylindrical shells with Y-branches
  • Miter bends
  • Simplified analysis for cyclic loading

EN 13445 - Unfired pressure vessels

The PROBAD module "EN 13445 Unfired Pressure Vessels" provides strength calculations of the following parts under internal and/or external pressure:

  • Cylindrical components with up to 10 nozzles and their interactions
  • Tees
  • Dished heads, hemispherical and spherical heads with nozzles and their interactions
  • Reducers (concentric and eccentric cones) with nozzles and their interactions
  • Flat circular, elliptical and square heads and plates with openings
  • Tube sheets on heat exchangers
  • Vessels at lifting lugs according to EN 13445-3, section 16.5
  • Calculation of 'Lifting lugs' according to EN 13445-3, chapter 16.7
  • Horizontal vessels on saddles or ring supports according to EN 13445-3, section 16.8-16.9
  • Vertical vessels on bracket supports according to EN 13445-3, section 16.10
  • Vertical vessels with supporting legs according to EN 13445-3, section 16.11
  • Vertical vessels with skirts according to EN 13445-3, section 16.12
  • Vertical vessels with ring supports according to EN 13445-3, section 16.13
  • Local loads on nozzles in spherical shells according to EN 13445-3, section 16.4
  • Local loads on nozzles in cylindrical shells according to EN 13445-3, section 16.5
  • Simplified assessment of fatigue life according to EN 13445-3, section 17.

EN 1591 - Flange connections

The PROBAD module "EN 1591 Flange Design" provides re-checking or designing of flanged joints in accordance with EN 1591 including leakage analysis, e. g. to fullfill the requirements of “TA Luft”.
For standard flanges in accordance with  DIN, EN 1092-1, EN 1759-1, ASME-B16.5 and ASME B16.47A/B16.47B the dimensions of flanges, bolts and gaskets as well as clamping parts (washers, expansion sleeves, HYTORC discs resp. HYTORC expansion nuts) are stored in a database and can always be retrieved into convenient, easy-to-use input panels.Additionally it is possible to enter non-standard measures.

Available flange types:

  • weld-on flanges, welding-neck flanges, slip-on flanges, put-in flanges with tube stopper, integral flanges, blind flanges, threaded flanges
  • stub constructions with loose rings as weld-on stub, welding-neck stub, slip-on stub, put-in stub with tube stopper, integral weld-on stub, blind stub
  • collar construction with loose rings as welding collars or as welding collar with long neck.

The usage ratios are determined by given loads like pressures, temperatures, forces and moments for:

  • flanges considering the possibly connecting component (cylindrical, conical, spherical, hemispherical shell, dished head)
  • bolts and
  • gaskets under consideration of the req. leakage rate

The gasket database includes about 400 types of gaskets.The characteristic values are taken from these sources:

Only one single calculation step is used to check the flange connection for the assembly condition and up to nine subsequent conditions.
Special verifications like nominal tighten torque, bolt forces, maximum flange rotation or minimum usage ratio of the bolts can be provided additionally.

 

EN- and DIN pipe series

The PROBAD module "DIN-/EN-Piping" provides  serial calculations of standard pressure parts in piping systems for:

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

The calculation optionally can be carried out for internal pressure or external pressure according to

  • EN 13480 (metallic industrial piping)
  • EN 13445 (unfired pressure vessels)
  • EN 12952 (water tube boilers)
  • AD-2000
  • TRD
  • DIN 2413

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 EN 1092-1).

Calculated pipe classes can be exported in *.xml format and after that imported into ROHR2 for / stress analysis/ flexibilty analysis.
A short report following DIN21057 is created.

Calculated pipe classes can be exported in .xml format and be used in ROHR2 to carry out pipe stress calculation.
Besides the .xml output and an output in .pdf or .docx also a short documentation including rating- and branch tables can be created.