Available calculation modules in VES

General description

All modules are validated by hand. Validation reports are available upon request (pdf).
Calculations
  • ASME VIII Division 1/TEMA/EJMA
  • EN 13445-3
  • AD 2000 Regelwerk
  • Rules for Pressure Vessels
  • TEMA Heat Exchangers
  • WRC Local loads on thin walls
Materials
  • ASME II D
  • Euro Norm
  • EN 10088
  • EN 10028
  • EN 10222
  • DIN
Pipes
  • ASME B36.10M
  • ASME B36.19M
  • EN 10220
  • ISO 4200
Gaskets
  • ASME B16.20/21
  • RToD D0701
  • EN 1514-1/2/3/4/6/7/8
  • DIN 2690/2691/2692/2693/2695/2697
Flanges
  • ASME B16.5/B16.47
  • DIN 26XX
  • EN 1092-1
  • EN 1759-1
Bolting
  • UNC and Metric units
  • DIN 2510
  • ISO 4014 / DIN 931
  • ISO 4017 / DIN 933
  • Optimized bolt spacing depending on the tensioning tool
Nozzles
  • Nozzle load specifications
  • Import of predefined nozzle loads depending on nozzle size, flange rating and material selection

ASME VIII Division 1 (SI units)

Chapter Description Result Example
UG-27 Cylindrical and spherical shells under internal pressure (see also appendix 1-1) Required shell thickness and maximum allowable pressure Show
UG-28 Cylindrical, conical and spherical shells under external pressure Maximum allowable external or vacuum pressure Show
UG-29 Stiffener rings for cylindrical shells under external pressure Stability of the stiffener rings -
UG32 Ellipsoidal, hemispherical, knuckled and tori-conical heads under internal pressure Required head thickness and maximum allowable pressure Show
UG-33 Ellipsoidal, hemispherical, knuckled and tori-conical heads under external pressure pressure Maximum allowable external or vacuum pressure Show
UG-34 Unstayed flat heads and covers under pressure Required cover thickness
UG-36,UG-37,UG-40 Openings and reinforcements: Reinforcements required for openings in shells and formed heads Minimum required reinforcement area -
UG-39 Reinforcement required for openings in flat heads Minimum required reinforcement area -
UG-45 Nozzle neck thickness Minimum required nozzle thickness -
UHX-12 Rules for the design of U-Tube tubesheets Actual stresses in tubesheet and shells -
UHX-13 Rules for the design of Fixed tubesheets Actual stresses in tubesheet and shells -
UHX-14 Rules for the design of Floating tubesheets Actual stresses in tubesheet and shells -
Appendix 1-2 Cylindrical shells with t > 0.5 R under internal pressure Minimum required thickness -
Appendix 1-3 Spherical shells with t > 0.356 R under internal pressure Minimum required thickness -
Appendix 1-4 Formulas for the design of formed heads under internal pressure Minimum required thickness -
Appendix 1-5 Rules for conical reducer sections and conical heads under internal pressure Minimum required reinforcement area -
Appendix 1-6 Dished bolted covers Minimum required thickness -
Appendix 1-7 Large openings in cylindrical and conical shells Actual stresses -
Appendix 1-8 Rules for reinforcement of cones and conical reducers under external pressure Minimum required reinforcement area -
Appendix 2 Rules for bolted flange connection with ring type gaskets Actual stresses and rigidity -
Appendix 26 Bellow expansion joints Life cycles and stability under internal and external pressure -
Appendix 41 Electric immersion heater element support plate Actual stresses in EIH support plate -
Additional calculations
Zick Cylindrical shell on two saddles Stresses in shell and saddle -
TEMA U-tube tube sheets Minimum required thickness -
TEMA Fixed tubesheets Minimum required thickness and actual stress in tubes and shell -
TEMA Floating tubesheets Minimum required thickness
EJMA Bellow Expansion Joints (circular shaped expansion joints for shell and tube heat exchangers) Life cycles and stability under internal pressure -
WRC 107 External loads on solid round attachments on cylindrical shells Actual stresses -
External loads on solid rectangular attachments on cylindrical shells Actual stresses -
WRC 297 External loads on hollow round attachments on cylindrical shells with Stress Intensity Factors Actual stresses -
Bolt Torque Bolt tensioning Required bolt torque -

EN 13445

Chapter Description Result Example
Clause 6 Maximum allowed values of the nominal design stress for pressure parts -
Clause 7 Cylinder under internal pressure Minimum required thickness for cylindrical, conical and spherical shells and dished ends Show
Heads under internal pressure Minimum required thickness for cylindrical, conical and spherical shells and dished ends Show
Clause 8 Cylinder under external pressure Maximum allowable external pressure for cylindrical, conical and spherical shells and domed ends Show
Heads under external pressure Maximum allowable external pressure for cylindrical, conical and spherical shells and domed ends Show
Clause 9 Openings in shells Maximum allowable pressure for reinforced openings in shells -
Clause 10 Flat ends Minimum required thickness for bolted and welded flat covers -
Clause 11 Flanges Stresses in circular flanges with narrow face gaskets -
Clause 12 Bolted domed ends Stresses in bolted dished covers with narrow face gaskets -
Clause 13.4 U-Tube tubesheet heat exchangers Actual stresses -
Clause 13.5 Fixed tubesheet heat exchangers Actual stresses -
Clause 13.6 Floating head tubesheet heat exchangers Actual stresses -
Clause 14 Expansion bellows Maximum life cycles, stresses and stability -
Clause 15 Pressure vessels of rectangular section Stresses in unreinforced and reinforce rectangular shell sections -
Clause 6 Non-pressure loads - -
16.4 Local loads on nozzles in spherical shells Maximum load ratios -
16.5 Local loads on nozzles in cylindrical shells Maximum load ratios -
16.6 Line loads Maximum allowable force and moment -
16.7 Lifting lugs Maximum allowable force -
16.8 Horizontal vessels on saddle supports Maximum load ratios -
16.10 Vertical vessels on bracket supports Maximum loads -
16.11 Vertical vessels with supporting legs Maximum load ratios -
16.12 Vertical vessels with skirts Maximum allowable stresses -
16.13 Vertical vessels with ring supports Maximum loads -
16.14 Global loads Helper module for clause 16 -
Additional calculations
Bolt Torque Bolt tensioning Required bolt torque to seat the gasket -
WRC 107 External loads on solid round attachments on cylindrical shells Actual stresses -
External loads on solid rectangular attachments on cylindrical shells Actual stresses -
WRC 297 External loads on hollow round attachments on cylindrical shells with Stress Intensity Factors Actual stresses -

AD 2000 Regelwerk (English, SI Units)

Chapter Description Result Example
B1 Cylindrical and spherical shells subject to internal pressure Minimum required thickness Show
B1 Anlage 1 Bends and elbows under internal pressure Minimum required thickness -
B2 Conical shells subject to internal and external pressure Minimum required thickness -
B3 Domed ends subject to internal Minimum required thickness Show
Domed ends subject to external pressure Minimum required thickness Show
B4 Dished head subject to internal or external pressure Minimum required dish thickness and maximum flange loads -
B5 Unstayed and stayed flat ends and plates Minimum required thickness -
Welded circular end rectangular ends -
Bolted circular end rectangular ends -
Stayed flat cover -
U-Tube tubesheet -
Fixed tubesheet -
Floating head tubesheet -
B6 Cylindrical shells subject to external pressure Maximum allowable pressure Show
B7+B8 Boltings + Flanges -
Welding neck (integral hub) flanges -
Slip-On welded ring -
Slip-On lapped ring -
Reversed flange -
Slip backing ring -
B9 Openings in cylindrical, conical and spherical shells Reinforcement of opening
B10 Thick walled cylindrical shells subject to internal pressure -
B13 Single-ply bellows expansion joints Life cycles and stresses
S3/1 Vessel on skirt supports Actual stresses -
S3/2 Horizontal vessel on saddle supports Actual stresses -
S3/3 Vessels with domed ends on legs Actual stresses -
S3/4 Vessels with support brackets Minimum required thickness and Actual stresses -
Additional calculations
DIN 2505 Flanged joint calculation Actual stresses -
Welding neck (integral hub) -
Slip-On welded ring -
Slip-On integral welded ring -
Slip-On loose ring (lapped) -
Bolt Torque Bolt tensioning Required bolt torque -
WRC 107 External loads on solid round attachments on cylindrical shells Actual stresses -
External loads on solid rectangular attachments on cylindrical shells Actual stresses -
WRC 297 External loads on hollow round attachments on cylindrical shells with Stress Intensity Factors Actual stresses -

RToD: Dutch Rule for Pressure Vessels (English, SI Units)

Chapter Description Result Example
D0201 Cylindrical, conical, spherical shells and pips under internal pressure Minimum required thickness Show
D0203 Knuckled heads with pressure on the concave side (internal pressure) Minimum required thickness Show
D0205 Dished covers under pressure on the concave side Minimum required thickness and stresses in flange according D0701 -
D0206 Rectangular headers under internal pressure Minimum required thickness -
D0207 Cylinder-cone junction without knuckle under internal and external pressure Actual stresses in and around the cone junction -
D0210 Toroidal bends under internal pressure Minimum required thickness -
D0211 Mitred bends under internal pressure Minimum required thickness. -
D0301 Cylindrical, conical, spherical shells and pips under external pressure (with optional stiffener rings) Minimum required thickness. Stability of the optional stiffener ring Show
D0303 Heads with pressure on the convex side (external pressure) Minimum required thickness Show
D0401 Unstayed flat walls Minimum required thickness -
D0402 Stayed flat walls Minimum required thickness. Maximum unsupported width -
D0403 Tube sheets: One circular tube sheet with U-bends or bayonet tubes Minimum required thickness. Actual stress in the tubes -
D0404 Tube sheets: Two fixed, circular tube sheets Minimum required thickness. Actual stress in tubes and shell barrel -
D0405 Tube sheets: Two circular tube sheets: one fixed and one floating head Minimum required thickness. Actual stress in the tubes -
D0501 Opening in curves walls (nozzles, tee or weldolet) Minimum allowable strength reduction -
D0503 Opening in flat wall (nozzles) Minimum allowable strength reduction -
D0701 Flange connection Stress in flange, bolts and gasket. Deflection of the flange -
Bolt Torque Establishing the optimal bolt torque using flange calculation according D0701 and bolt relaxation according BS 4882 Optimal bolt torque -
D0901 Bellows expansion joints Maximum lifecycles and stresses -
D1105 Horizontal cylinder on two saddle supports (Zick) Stresses in the cylinder, saddles and heads -
D1201 Vertical pressure vessel such as columns: loading by pressure, wind, weight of vessel and supports Stress in vessel -
D1301 Skirt supporting a vertical vessel Stresses in skirt -
D1302 Anchorage with circular base ring Stresses in anchors and minimum required thickness base ring -
Additional calculations
WRC 107 External loads on solid round attachments on cylindrical shells Actual stresses -
External loads on solid rectangular attachments on cylindrical shells Actual stresses -
WRC 297 External loads on hollow round attachments on cylindrical shells with Stress Intensity Factors Actual stresses -

WRC 107/297

Chapter Description Result Example
WRC 107 External loads on solid round attachments on cylindrical shells Actual stresses Show
External loads on solid rectangular attachments on cylindrical shells Actual stresses -
External loads on solid round attachments on spherical shells Actual stresses Show
External loads on solid square attachments on spherical shells Actual stresses -
WRC 297 External loads on hollow round attachments on cylindrical shells with Stress Intensity Factors Actual stresses -

Material and Fitting Standards

Norm Description
ASME Material and Fitting Standards
ASME B36.10MWelded and Seamless wrought steel pipe
ASME B36.19MStainless Steel Pipe
ASME B16.5Pipe flanges
Flange rating tables
ASME B16.47Large diameter steel flanges (series A and B)
NPS 26 through NPS 60
ASME II part DRelevant material properties required for auxiliary calculations like external pressure chart numbers, modulus of elasticity, etc.
DIN Flange Standards
DIN 2627Welding neck flanges; nominal pressure 400
DIN 2628Welding neck flanges; nominal pressure 250
DIN 2629Welding neck flanges; nominal pressure 320
DIN 2630Welding neck flanges; nominal pressure 1 and 2.5
DIN 2631Welding neck flanges; nominal pressure 6
DIN 2632Welding neck flanges; nominal pressure 10
DIN 2633Welding neck flanges; nominal pressure 16
DIN 2634Welding neck flanges; nominal pressure 25
DIN 2635Welding neck flanges; nominal pressure 40
DIN 2636Welding neck flanges; nominal pressure 64
DIN 2637Welding neck flanges; nominal pressure 100
DIN 2638Welding neck flanges; nominal pressure 160
Euro Norm Material Standards
Flat products made of steel for pressure purposes
EN 10028-2Non-alloy and alloy steels
EN 10028-3Weldable fine grain steels, normalized
EN 10028-5Weldable fine grain steels, thermomechanically rolled
EN 10028-6Weldable fine grain steels, quenched and tempered
EN 10028-7Stainless steel plates/sheet/strip
Seamless steel tubes for pressure purposes
EN 10216-2Non alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-3Alloy fine grain steel tubes
prEN-10216-5Stainless steel tubes
Welded steel tubes for pressure purposes
EN 10217-2Electric welded no-alloy and alloy steel tubes
EN 10217-3Alloy fine grain steel tubes
EN 10217-5Submerged arc welded non alloy and alloy steel tubes
EN 10217-7Stainless steel
Steel forgings for pressure purposes
EN 10222-2Ferritic and martensitic steels
EN 10222-4Weldable fine grain steels with high proof strength
EN 10222-5Martensitic, austenitic and austenitic-ferritic stainless steels
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 10269Steel and nickel alloy fasteners
ISO Pipe Standards
ISO 4200Plain end steel tubes, welded and seamless.
Euro Norm Pipe and Fitting Standards
EN 10220Seamless and welded steel tubes
EN 1092-1Flanges and their joints: cicular flanges for pipe, valves, fittings and accessories, PN designated-Part 1: Steel flanges