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:

  • 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
  • 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
  • Horizontal vessels on saddles or ring supports
  • Vertical vessels with support skirts

EN 1591 - Flange connections

The PROBAD module "EN 1591 Flange Design" provides re-checking or designing of flanged joints in accordance with EN 1591.
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
  • gaskets under consideration of gasket parameters acc. to EN 1591-2 or manufacturer defined parameters, published on www.gasketdata.org.

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).