Codeware User's Manual

Users ManUal

1 - Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1 2 - COMPRESS Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

2 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1 3 - How to Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1 4 - Sample COMPRESS Design Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1

Step 1: Begin a New Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5

Step 2: Set the Design Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6

Step 3: Select the ASME Edition / Addenda . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8

Step 4: Set the Datum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10

Step 5: Save Your Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11

Step 6: Design the Vessel (Add Components) . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12Add a Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 13

Add Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 15

Add a Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 17

Add the Final Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 19

Add a Hemispherical Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20

Add Wind and Seismic Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 22

Add Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24

Add Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 27

Add Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 30

Generate Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 37

User Defined Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 40

5 - File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1Export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 4

Export Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 4

Export Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 5

Project Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6 6 - Component Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1

Table of Contents

Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2

Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8

Ellipsoidal Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 10

F & D Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 11

Hemi Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 12

Spherically Dished Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 13

ASME B16.9 Pipe Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 15

Bolted Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 16

Welded Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 19

Appendix 14 Flat Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 22

Body Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 24

Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 33

7 - Action Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 6

Global Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 46

PDF Report Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 48

Long Seam Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 51

Camera Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 55

Edit General Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 58

Export General Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 61

8 - Nozzle Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1Nozzle Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 2

Nozzle Quick Design Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 14Nozzle Calculation Option Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 16

Nozzle Detail Dimension Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 19

Nozzle WRC 537 and 107 Loadings . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 23

Nozzle FEA Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 31

Nozzle Plan View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 39

9 - Attach Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1

Platform / Ladders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 2

Baffles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 5

Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 6

Packed Bed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 8

Clip / Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 9

Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 10

Insulation / Lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 11

Rigging / Lift Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 12

Plate Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 13

Ear Type Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 17

Trunnions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 19

Rigging Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 21

10 - Support Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 1Skirt Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 2

Skirt Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 5

Saddles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 7

Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 12

Anchor Bolt and Base Plate Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 23

Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 26

Skirt Base Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 28

Single Base Plate Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 31

External Chairs Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 33

Double Base Plate Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 34

Centered Bolt Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 35

Standard Base Plate Details Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 36

11 - Codes Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1ASME Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 2

Wind Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 4

Wind IBC Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 6

Wind ASCE Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 7

Wind NBC Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 13

Wind UBC Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 17

Wind User Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 18

Seismic Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 21

IBC Seismic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 25

ASCE 7-10, 7-05, 7-02, and 7-98 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 30

ASCE 7-95 and 7-93 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 32

ASCE 7-88 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 35

NBC Seismic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 36

UBC Seismic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 42

Seismic User Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 44

12 - Loads Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1Lateral Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 2

Vertical Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 3

Liquid Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 5

13 - Material Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1ASME Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 3

Full User Defined Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 5

Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 12

Gasket Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 14

Structural Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 15

Standard Saddle Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 18

Studding Outlet Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 20

14 - Forms Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 1Form Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 5

Manage Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 7

Submit Forms Electronically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 11

15 - Windows Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 1

16 - Help Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 - 1 17 - Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 1

PDF Report Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 3

Report Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 6

Deficiencies Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 9

Nozzle Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 10

Nozzle Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 11

Pressure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 12

Thickness Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 13

Hydrotest Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 14

Weight Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 15

Vacuum Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 17

18 - Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 1Appendix A - Weight Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 1

Appendix B - Saddle Seismic Reaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 4

Appendix C - Lift Lug Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 8

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 16

19 - Vessel Wizard Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 1

Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 2

Create a New Vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 3

Vw Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 4

Create Defaults File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 5

Select Active Defaults File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 6

SetDefaultsFromFile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 7

Setting Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 9

Vessel General Info - Defaults . . . . . . . . . . . . . . . . . . . 19 - 10

General Info - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 11

Material - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 13

Nozzle - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 14

Legs - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 16

Support Skirt - Defaults . . . . . . . . . . . . . . . . . . . . . . . . 19 - 18

Support Lugs - Defaults . . . . . . . . . . . . . . . . . . . . . . . . 19 - 20

Wind Code - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 22

Seismic Code - Defaults . . . . . . . . . . . . . . . . . . . . . . . . 19 - 23

Other - Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 25

General Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 27

Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 32

Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 36

Wind and Seismic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 37

20 - COMPRESS Exchanger Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 1 20 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 3

21 - Heat Exchanger Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 1General Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 1

Tube Side Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 9

Floating Tubesheet Channel Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . 21 - 16

Shell Side Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 19

Tubesheet Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 23

Operating Temperature Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 27

Liquid Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 31

Kettle Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 32

Tubes and Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 34

Rear Shell Closure Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 41

Expansion Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 45

Expansion Joint Bellows Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 51

Tubesheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 57

Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 66

Tube-To-Tubesheet Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 74

Pass Partition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 78

Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 81

HTRI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 84

Set Mode Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 90

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 91

Weight Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 91

22 - INSPECT Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 1 API 510 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 2

How to use API 510 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 2

Inspection CMLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 5

API 510 Data Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 19

Data Collection Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 21

Projected Vessel State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 23Inspection Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 24

Vessel Data Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 26

23 - API 579 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 1How to use API 579 Flaw Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 1

Part 4 or Part 5, General or Local Metal Loss . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 4

Part 6, Pitting Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 8

Part 3, Brittle Fracture Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 12

Supplemental Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 13

24 - Tube Layout Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 1 24 - Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 1

Shell and Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 1

Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 5

Baffles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 7

Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 9

Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 13

Title Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 14

25 - Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 1File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 1

Edit Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 3

View Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 4

Help Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 5

Export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 6

Page Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 7

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 9

26 - Layout Design Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 - 1Layout Design Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 - 1

27 - Integration with COMPRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 - 1 28 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 - 129 - COMPRESS Help Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 - 130 - Vessel Wizard Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 - 131 - Exchanger Help Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 - 132 - INSPECT Help Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 - 133 - Tube Layout Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 - 1

Introduction

License Agreement

The license agreement can be viewed and printed at any time from within COMPRESS. From theHelp Menu select About COMPRESS and then click View License Agreement.

Installing COMPRESS

Please visit the online Support Center, http://www.codeware.com/support for:

Detailed system requirementsStep-by-step Single User and Network installation instructionsInstructions for repairing and uninstalling COMPRESS

Getting Started

To help you begin, we suggest that you view the COMPRESS Vessel and Heat Exchanger VideoTutorials located under the COMPRESS Help menu. We also encourage you to take advantage ofthe resources available in the online Support Center (http://www.codeware.com/support). Hereyou can find a complete listing of software developments as well as technical papers, calculationverification documents, manuals and a selection of video tutorials. The knowledgebase searchcapability, together with an FAQ index, makes it easy to quickly locate the answers you need.

The COMPRESS Modeling Approach

COMPRESS offers two approaches to modeling vessels: Wizards and free form design. Forquick model creation, COMPRESS includes a Wizard interface which requires only basicinformation to model typical vessels and exchangers. For unparalleled flexibility, COMPRESSalso offers a component by component free form design approach. This method is useful whendesigning equipment which does not fit typical parameters and when modifying equipmentcreated by Wizards.

Whether you are building new vessels and exchangers or rating existing equipment, you can buildyour model using a specially tailored input mode. In design mode, COMPRESS selects sizes,thicknesses and ratings to meet Code requirements. In rating mode, COMPRESS calculates theMAWP and minimum thickness while allowing you to input your existing geometry. In bothmodes, inputs are re-evaluated during the modeling process and updated as necessary to reflectapplicable Code dependencies. In selected circumstances, warnings and good engineeringpractice reminders are presented.

COMPRESS Help Introduction < 2 - 1 >

Calculation Methods Used by COMPRESS

Where appropriate, COMPRESS designs and rates pressure vessels and heat exchangers usingindustry standard methods and good engineering practices.

A Cautionary Note:

COMPRESS is a very powerful and user-friendly program and a wonderful engineering tool.However, it is not a substitute for a knowledgeable and competent Engineer or Designer.

COMPRESS Help Introduction < 2 - 2 >

How to Use this ManualThis manual focuses on operations unique to COMPRESS. COMPRESS utilizes a standardMicrosoft Windows user interface and this manual assumes the user is comfortable withperforming basic Windows operations. For assistance with using Windows, please refer to yourWindows documentation.

The following icons appear throughout the COMPRESS manual to highlight importantinformation:

- helpful advice and tips

- technical information

- warnings

- mouse usage or mouse editing tips

The following conventions are used throughout this manual:

Specific keyboard keys are displayed as they appear on most keyboards (e.g. Esc, Del,Enter, F3).When simultaneous keystrokes are required the keystrokes are shown connected by a plussign. Hold the first key down while simultaneously pressing the second key (for example,press Ctrl+O to open a file).

What is Covered in this Manual

The standard functionality of COMPRESS is covered in this manual. The Division 2 and HeatExchanger options are also covered in this manual. These options are available from withinCOMPRESS for an additional charge. When purchased, they are enabled on your security keyand no further software installation is required. These options will be grayed out on the toolbar ifthey are not enabled.

The COSTER and DRAFTER options are additional software packages. When purchased, theyare enabled on your security key and require additional software installations. User Manuals forthese options are available from Codeware's online Support Center(http://www.codeware.com/support).

COMPRESS Help How to Use this Manual < 3 - 1 >

Tips on Designing a Vessel

Please see the COMPRESS Quick Start Guide available from Codeware's Support Center(http://www.codeware.com/support) for a suggested vessel modeling sequence. Please note thatthis sequence is just one of many ways to model in COMPRESS. Components and loads may bemodeled in any order and individual components designed without specifying the entire vessel.

The next chapter, Sample COMPRESS Design Session, will give you a step-by-step, detailedexample to model.

COMPRESS Help How to Use this Manual < 3 - 2 >

Sample COMPRESS Design SessionThis chapter takes you through the design of an example vessel. This is a good way to becomefamiliar with the program's capabilities and methods. Please note that this sequence is just one ofmany ways to model in COMPRESS. Components and loads may be modeled in virtually anyorder and individual components designed without specifying the entire vessel.

To start COMPRESS click the Windows Start button > All Programs > Codeware > COMPRESSxxxx > COMPRESS (where xxxx indicates the build number of COMPRESS). After thestartup logo you should see a blank design screen with a menu bar and tool bar at the top.

The COMPRESS Main Screen

The COMPRESS main screen has several components:

Menu Bar: All COMPRESS functions are grouped into menus by category. Only the title of themenu appears on the menu bar.

Status Bar: Displayed at the bottom of the COMPRESS main window. It displays informationabout the open file. The right side of the status bar displays the system of units being used andindicates which Division of the Code is being used.

Toolbars: The toolbars can be moved and may not appear in exactly the same location on yourscreen as they do in this manual. You can select which toolbars are displayed and which are

COMPRESS Help Sample COMPRESS Design Session < 4 - 1 >

hidden in the Toolbar configuration dialog (Windows > Toolbars).

Main Toolbar: Provides quick access to many commonly performed COMPRESSoperations.Project Toolbar: A feature that allows users to organize, view and backup files of anytype from within COMPRESS.Report Toolbar: Used to easily navigate the COMPRESS report. The toolbar is not activeunless the report window is open.Camera Toolbar: Selects how the mouse movement will affect the 3D vessel positionand scale. This toolbar is not active unless the design window is open.


Component Toolbar: A shortcut to options located on the Component, Nozzle, Attach,and Support menus. You can suppress display of the component toolbar by closing it.

Window Types:

Design Window: Displays the designed components on screen.Report Window: Minimized while you are working on a vessel design. When youmaximize this window the COMPRESS report menu bar replaces the design menu bar.Report Toolbar: Used to easily navigate the COMPRESS report. The toolbar is not activeunless the report window is open.


Camera Toolbar: Selects how the mouse movement will affect the 3D vessel positionand scale. This toolbar is not active unless the design window is open.Project Window: An optional window used by the Project feature. The Project featureallows users to organize, view and backup files of any type from within COMPRESS.

In this session, the vessel below will be modeled in COMPRESS.


Step 1: Begin a New DesignWe will begin our new design by selecting File > New Division 1 Vessel. Alternatively, you canbegin this design by clicking on the Division 1 toolbar icon.


Step 2: Set the Design ModeThe set mode options dialog is used to specify general vessel properties as well as themethodology used to perform the analysis.

From the Action menu, click Set Mode Option (or press F7), then click on the Calculation -General page:


Select Get Thickness from Pressure to alert COMPRESS that you are designing a new vessel andnot rerate an existing vessel. All other options should be preset as shown above. Click OK toreturn to the blank design screen.


Step 3: Select the ASME Edition / Addenda

From the Codes menu, select ASME:


From this dialog select the desired Edition / Addenda, then click OK. COMPRESS automaticallyuses the latest ASME Code Edition / Addenda when creating a new file.


Step 4: Set the Datum

From the Action menu, select Set Datum (or press F8). Our example is a vertical vessel that weare designing from bottom to top. Select 'Vertical Vessel' and 'Bottom Shell Seam' to specify theorientation of the reference line. For this example, we are also specifying to offset the datum line6" from the seam of the bottom shell to head.


Step 5: Save Your Work

From the File menu, select Save As. Input Example1 as the name of the vessel and click Save.Your file can be saved at any time. It is recommended that you save your work often.


Step 6: Design the Vessel (Add Components)

Our example vessel consists of an ellipsoidal head, 4 cylinders, a transition, and a hemisphericalhead. For our vertical vessel we will be entering the components from top to bottom. If we weredesigning a horizontal vessel, the components would typically be entered from left to right.

Components can be added to the model from the Component menu, from the Component toolbaror by pressing the 'Insert' key. Please see the following sections for more detailed information:

Add a Head < 4 - 13 >Add Cylinders < 4 - 15 >Add a Transition < 4 - 17 >Add the Final Cylinder < 4 - 19 >Add a Hemispherical Head < 4 - 20 >Add Wind and Seismic Loading < 4 - 22 >Add Supports < 4 - 24 >Add Nozzles < 4 - 27 >Add Attachments < 4 - 30 >


Add a Head

From the Component Menu, select Ellipsoidal Head:

The component identifier is automatically defaulted to Ellipsoidal Head #1. Press Tab to advanceto the material box. Accept the default material: SA 516-70. A short list of materials isavailable in the drop down box. To select materials not included in this preset short list, pleaserefer to the ASME Materials page

Tab to Internal Pressure and enter 250 psi. Note: All pressure inputs in COMPRESS are psig. Weare using 450 degrees F for the design temperature in this example.

Input 15 psi as full vacuum design and 450 degrees as the design pressure for external pressure.

Input 0.0625 for internal corrosion allowance. External corrosion (referred to as outer inCOMPRESS) is also known as "under the-insulation" corrosion. Notice you can input 0.0625 as afraction by entering 1/16.


Since this head is not inside the vessel, ignore the internal head switch.

For MDMT input -25 degrees F. This user-defined Minimum Design Metal Temperature is thelowest temperature at which the vessel will operate under pressure.

Accept the default 70 degrees for test temperature.

Choose Impact Tested and PWHT performed in the metallurgical treatment box.

For radiography accept the default Seamless No RT in the Longitudinal Seam RT box and selectSpot UW-11(a)(5)(b) Type 1 for Circumferential Seam RT. The latter is chosen because it willyield 100% joint efficiency.

Click Next to advance to the dimensions screen:

Select Inner Diameter. Input the head diameter as 60 inches and press Tab. Enter 1.5 inches forstraight flange length and press Tab. Notice that the minimum thicknesses are shown in the boxto the right. Now, select OK. The head is drawn in the design window.


Add Cylinders

Next you will add three cylinders. From the Component menu, select Cylinder:

Copy Last: Since our cylinders share many common inputs with the head designed previously,click Copy Last to copy the data from the head. Adjust the Longitudinal and CircumferentialSeam RT to be Spot, Type 1. Click Next.


Input all values as shown above. Note that the minimum required thicknesses are shown in thebox at right. To adjust the right-hand side box size, use your mouse to pull the top border.Select OK to accept all values and draw the three cylinders on the vessel.


Add a Transition

From the Component menu, select Transition:

Click Copy Last and then click Next.


Input all values as shown above and click OK.


Add the Final Cylinder

To add the final cylinder to the vessel, highlight the Component menu and select Cylinder. ClickCopy Last and then Next. Input 120 inches for the Shell Diameter and 90 for the Length.

Click OK.


Add a Hemispherical Head

From the Component menu, select Hemi Head. Click Copy Last and then Next.

Input the values above and click OK.


The vessel should now look like this:


Add Wind and Seismic Loading

Adding wind and seismic codes to our example causes COMPRESS to consider wind andearthquake induced forces and moments.

Select Wind from the Codes menu. Set the code to ASCE 2010 and input values shown below,then click OK:


Next, select Seismic from the Codes menu. Set the code to ASCE 2010 ground supported andinput values shown below, then click OK.


Add Supports

There are two skirt options: Intermediate and Support. The Intermediate support option isintended to be used to attach two different pressure chambers.

From the Support menu, select Skirt and then Support. Input 84 inches for the length and acceptthe other values.

Click Attach Base Ring.


Select External Chairs, and then click Next.


Click OK to finish.


Add Nozzles

From the Nozzle menu, select Detailed Design (or press F2):

Enter all values as shown above then click Add ASME B16.5/16.47 Flange. If you select Nozzle-> Quick Design, COMPRESS will select wall thicknesses and add pads automatically.


Make the indicated selections. Select "Consider external loadings on flange MAWP rating" tohave COMPRESS calculate an equivalent pressure due to external loads as specified in theWRC-107 screen. The equivalent pressure will be considered when determining the flangeMAWP rating. Return to the nozzle screen by clicking OK. Click Next to proceed to the nozzlecross section screen.


Input the indicated values. Note that minimum values appear to the right of the input screen.Available and required reinforcement areas are shown in the status bar. Click OK to accept thevalues.


Attachments

Add a Platform and Ladder

From the Attach menu, select Platform/Ladder:

Uncheck Top head platform and input the values as shown. Click OK.


Add a Top Head Platform and Ladder

From the Attach menu, select Platform/Ladder:

Input the values as shown, click OK.


Add Insulation

From the Attach menu, select Insulation.

Select all components except the skirt and input the indicated insulation properties. Thisprocedure can be repeated several times if you need to insulate components with insulation ofdifferent properties. Do this by selecting the appropriate components and changing the inputs.Click OK to continue.


Add Trays

From the Attach menu, select Trays:

Input all values as shown above and select OK.


Trays are not initially visible inside the vessel, but can be viewed by mousing over the cylindersto turn them transparent temporarily, clicking on the Show Internals icon (Main toolbar), or bysetting the cylinder display properties to partially transparent (Action -> Set Mode Options -> 3DDisplay).


Add a Packed Bed

At the top of the vessel is a mesh pad which COMPRESS models in the same manner as apacked bed. From the Attach menu, select Packed Bed:

Insert values as shown, placing the pad at the very top of the tower, and click OK


Add Loads (Liquid Level)

For this example an additional load due to static head will be added. From the Load menu, selectLiquid Level. Specify a liquid level at 20 inches above the datum line with specific gravity 0.9and click OK.


Generate Report

COMPRESS can generate both detailed and abbreviated reports, the former suitable for use as acalculation audit trail. A minimal report can be generated if you prefer a higher levelpresentation. Reports may be set up to include your company specific information. You cancontrol how reports are displayed within the Report Defaults dialog (Action > Reports > ReportDefaults). Reports may be generated in PDF format by activating the Display Report as PDFoption in the PDF Reports dialog (Action > Reports > PDF Report Settings).

Reports can be generated at any time during the operation of COMPRESS by pressing F3 orselecting Action > Perform Code Calculations. To enable quick report navigation and problemresolution, Code rules are linked to inputs and clicking on a calculated result will take youdirectly to the source calculation.


Any errors detected by COMPRESS will be noted in the Deficiencies Dialog, a box presentedbefore the report is displayed. The Deficiencies Dialog gives an opportunity to edit thecomponents or accept the errors. All errors are listed in the Deficiencies Summary (in the report)for later viewing.


Click Continue and the report will be displayed. Navigate to individual reports using the links inthe left frame. If the option to generate the report as a PDF is active, the left pane is replaced by aset of PDF bookmarks.


User Defined Material

To bring up the User Defined Material dialog, add a component such as a cylinder and click onthe User Defined button next to the Material field.

Material Name -- Use the drop-down menu to select a previously defined user material or clickthe New button to enter a new material.

Pipe Material -- Activate this option if the product form is pipe. If active, the pipeundertolerance per UG-16(d) will be considered. A tolerance of 12.5% is applied per UG-45unless the options Cylindrical shells made from pipe are entered as minimum thickness orNozzles made from pipe are entered as minimum thickness are active in the Set Mode Optionsand Nozzles 1 tabs respectively.

Density -- Enter the density of the material. The density is used for weight calculations.

Vacuum Chart -- Select the appropriate vacuum chart for your material. This is used in externalpressure and allowable compressive stress calculations.

Elasticity -- Select the appropriate material group used to determine the modulus of elasticityfrom ASME II-D.

Allowable Tensile Stresses -- Enter the allowable tensile stress values for the operating, test,and vacuum design temperatures specified in the current design.


Edit All Stress Values

Select this option if you want to modify previous entries or enter stress values for temperaturesother than the current design temperatures. Select Delete from List to delete a stress/temperaturepair. Enter new values in the Temperature and Stress fields and click Update List to add thevalues to the list. Then click Save List to Database to save the new values for later use. Note thatthis option is not necessary for the current design. Also note that COMPRESS will not interpolateto find allowable stress values for temperatures not entered in the database, so it is necessary toinput stress values through this dialog for any temperature used.

Carbon Steel Material -- Select if the material is carbon steel or low alloy material (TableUCS-23 material) and a UCS-66 minimum design metal temperature (MDMT) rating is desired.The impact test exemption curve, material PNo, and materal Group No are required in order toperform the MDMT rating..

Minimum Yield Strength -- Enter the minimum yield strength at room temperature. When OKis selected, a warning is presented if the current ASME safety factors are not met (see ASME II-D Table 1-100). The allowable stress is typically the lesser of 2/3 yield or tensile divided by 3.5.

Minimum Tensile Strength -- Enter the minimum tensile strength at room temperature.

Save this in the main database -- Select this option to save the user defined material to theuser database when OK is selected. To utilize this material for other components or in other files,this option must be selected.


File MenuPull down the File menu by selecting 'File' from the menu bar at the top of the design window:

New Project This option opens up a new Project in the Project Toolbar, which is a feature thatallows users to organize, view, and backup files of any type from within COMPRESS.

New Division 1 Vessel This option opens a document window where you can design a newASME Division 1 vessel or heat exchanger.

COMPRESS Help File Menu < 5 - 1 >

New Division 2 Vessel This option opens a document window where you can design a newASME Division 2 vessel or heat exchanger.

New Heat Exchanger This option opens a document window where you can design a new heatexchanger based on TEMA or ASME design rules. See the Heat Exchanger help file for moreinformation.

Vessel Wizard This option starts the Vessel Wizard which can be used to quickly model avessel with minimal inputs. See the Vessel Wizard help file for more information.

Open This option lets you open a previously saved COMPRESS file in a new window. Four filetypes may be opened: COMPRESS for Windows files (*.CW7), COMPRESS Project files(*.CWPROJ), COMPRESS for DOS files (*.VSL), and HTRI files (*.HTRI, if license ispresent). The "Files of Type" filter within this dialog may be set to show files of a specificCOMPRESS-compatible type, all COMPRESS-compatible files, or files of any type.

Close This option closes the currently active document.

Save Saves your file in the directory in which you are working.

Save As Saves your file in a directory which you specify.

Export Model Use this option to export the vessel data to an XML data file.

HTRI Interface This item branches out to display all of the HTRI specific options.

Open HTRI File This allows an HTRI Xchanger file (.htri) to be selected and imported intoCOMPRESS. Shell and tube heat exchangers created with HTRI software may be imported intoCOMPRESS.

Set HTRI Import Preferences This option will open the HTRI Import Preferences dialog,which is used to review and set the preference values that will be used when importing HTRIXchanger files.

Display File Import Values This button will open the dialog that displays the HTRI FileImport Values, which displays all of the values used to interface the HTRI file with COMPRESS.Note that this item is only available after an HTRI file has been imported.

Rate Heat Exchanger This button uses the HTRI Xchanger software to rate the currentexchanger. The updates to the original HTRI file are displayed as well as thermal rating values.Note that this item is only available after an HTRI file has been imported.

Save as HTRI file This button will allow the current heat exchanger to be saved as an HTRIXchanger file. The file saved is the original HTRI file with all of the updates that are listed whenthe thermal calculations are run. Note that this item is only available after an HTRI file has beenimported.


Revisions Here you can keep a log of revisions made to your vessel design. When a new file iscreated an initial entry is automatically created stating the creation date and build number.COMPRESS automatically logs revision entries for Code year and Code Division changes. SeeRevision History for more information.

Print, Print Preview, Page Setup Use this option to control printing your vessel image.

Options on this dialog control printing and use conventional Microsoft methods and terminology.This is for printing the vessel image only, not the vessel calculation report. For report printing,see the Reports section.


Export Model

When you select the "Export Model" entry under the file menu, a file save dialog appears. In thisyou can enter a file name and select a format for the data export.

The formats for exporting the vessel data include AutoCAD DWG and DXF formats and ageneric XML format.

The DWG and DXF export formats are largely deprecated because they export the vessel as aseries of lines, not as surfaces and solid models.

The XML format is unique in that it is human readable and machine readable. If you want accessto your vessel data in custom software, this format is your best choice. Under the Export SolidModel menu, there is a 3D XML format option that is the same XML file but with an embeddedSTEP file of the model.


Export Solid Model

When you select the "Export Solid Model" entry under the file menu, a file save dialog appears.In this you can enter a file name and select a format for the data export. The supported exportformats include:

ACIS (.sat) - This is readable by most CAD packages including Autodesk's AutoCAD andInventor, DSS SolidWorks, and PTC's Creo Elements/Pro (formerly Pro/Engineer).Granite (.g) - This is readable by PTC's Creo Elements/Pro.IGES (.iges) - A platform-neutral data exchange file format readable by most CADpackages.STEP (.step) - Another platform-neutral data exchange file format.COMPRESS XML 3D (.xml3d) - A platform-neutral text file that includes all of the vesseldata along with an embedded STEP file

Note: The solid model export feature is available only when the solid model view is active.


Project ToolbarThe Project Toolbar is a feature that allows users to organize, view, and backup files of any typefrom within COMPRESS.


How to use the Project Toolbar

A new Project may be created by clicking the File menu item, then clicking New , then NewProject .

The Project Toolbar may be closed by clicking the 'x' in its top right corner and re-opened at anytime by right-clicking open space on the COMPRESS toolbar area and selecting Projects or byclicking the Window menu item, then clicking Toolbars... .

The Project Toolbar tree may be navigated by clicking the or buttons next to the folder iconsin the tree view.


Right clicking a folder icon gives the options to add a file , add a folder , rename the folder , orremove the folder from the project.

Right clicking a file icon gives the options to add a file , add a folder , rename the file , Open thefile, open the file's containing folder , or remove the file from the project.

Open ProjectThis button opens file selection window that will open a COMPRESS Project file.

Save ProjectThis button saves the current Project file. If the project has not yet been saved, a selectionwindow will open that allows a file name to be specified.

Save As...

This menu item allows the current Project file to be saved in an another location.


Export Project and Files to Zip File

This menu item allows a the current Project along with all of its files to be exported to a zip file.This is particularly useful for transferring a project and its included files to another computer viaemail. The zipped project file is linked with the zipped copies its files instead of the originals.

Export Project and Files to Folder

This menu item exports a the current Project and all of its files a folder. This can be used as ameans for backing up projects and files or for transferring projects to another computer. Likeprojects that are exported to a zip file, exported project file is linked with the exported copies itsfiles instead of the originals.

Add FileClicking this button brings up a file selection dialog to choose files to add to the project. Notethat it is possible to select multiple files by holding down the Ctrl key.

Add FolderThis button inserts a folder into the project. Folders may contain multiple files, folders, or evenother COMPRESS Project files.

Add Current FileClicking this button will add any COMPRESS file that is currently open to the project.

Open containing FolderClicking this button will launch Windows Explorer and open the folder that contains the selectedfile.

RemoveThis button will remove the currently selected file or folder from the project. Note that this doesnot delete the actual file, it only removes that file from the Project Toolbar.

Backup ProjectThis button launches the "Project Backup" dialog shown below. This feature makes a backupcopy of every file that the project and its sub-projects contain in the specified directory. This canbe very useful for keeping snapshots relevant files as a project progresses towards completion.


Note that if files are moved from the original location that they were in at the time they wereadded to the project, they can not be backed up because they can not be found.COMPRESS Project files found in the backup directory still reference the original copies of thefiles that they contain, not the backup copies.

Vessel Data Chart (Available for INSPECT only)This button will launch the Vessel Data Chart for the current Project. The Vessel Data Chartmakes management of multiple vessels easier by adding the capability to view importantinspection related data for multiple files all at once in a customizable grid.

Help ContentsThis button will launch this help page.


Component MenuThe Component menu allows you to add various pressure boundary components to a vessel. Inthis chapter, we discuss each component in the order of appearance on the Component menu. Topull down the Component menu, select Component from the menu bar at the top of the designwindow.

Cylinder < 6 - 2 >Transition < 6 - 8 >Ellipsoidal Head < 6 - 10 >F & D Head < 6 - 11 >Hemi Head < 6 - 12 >Spherically Dished Cover < 6 - 13 > Bolted Cover < 6 - 16 >Welded Cover < 6 - 19 > Appendix 14 Flat Head < 6 - 22 > Body Flange < 6 - 24 >Rings < 6 - 33 >Heat Exchanger < 20 - 1 >

COMPRESS Help Component Menu < 6 - 1 >

Cylinder

Identifier-- The identifier is simply your name for the component you are designing. Featuressuch as table of contents, global change, editing, deleting, adding insulation, etc., require that youselect one component from a listing of all components of a vessel. The identifier allows you toeasily select the component in which you are interested. COMPRESS supplies a default name,which you can override.

Material -- A default material (specified in Action/Set Mode/Defaults) is presented. To changethe material, click on the down arrow button to the right of the material field to display a dropdown box containing a "short list" of ASME materials. This short list is provided so you do nothave to sort through the entire ASME database every time you specify a material. You can add orremove materials from this short list, thereby achieving a personalized database from which towork (see Sec. 13 to add/remove materials by accessing the main material database). Highlight amaterial from the list, then click on it or press Enter.


Material Properties -- A dialog that displays the details for the currently selected material suchas nominal composition and density.

User Defined -- An option to specify a user defined material which is useful for situationswhere the desired material is not in ASME Section II Part D. Full user defined materials arecomparable to ASME materials and contain the material properties and data required to completeCode checks currently performed. Simple user defined materials are basic material definitionswith the minimum material properties used to run basic calculations. They can be defined whenselecting Simple User Defined after clicking on the User Defined button.

Use Code Case 2290 values -- Check this box to use allowable stress values specified by thiscode case. This option occurs only for the Code Editions and Addenda for which the code caseapplies. If the material you want to use is not displayed in the current short list described above,you will need to add it to the short list by clicking on the material as presented in the fullMaterials screen.

Internal Pressure/External Pressure -- The pressures entered are the design differentialpressures across the component at the design temperatures. The ASME Code refers to this as"design pressure". Internal pressure acts on the concave surfaces (normally inner surface) offormed heads and on the inside of cylinders. External pressure acts on the convex surface offormed heads and on the outside of cylinders.

Internal Temperature/External Temperature -- Enter values for internal and externaldesign or rerating temperatures. All materials have a maximum permissible temperature asspecified by the ASME code. If you enter a temperature higher than the maximum allowed,COMPRESS displays a warning message and the maximum temperature permitted. Thetemperatures may be limited by either:

Tensile Stress (Materials Part D)Vacuum Charts (Materials Part D)

Corrosion, Inner and Outer -- The corrosion values entered are applied to the inside and/oroutside of the vessel as specified. For internal heads the outer surface is defined as being theconvex surface, and the inner surface is the concave surface.

MDMT -- The minimum design metal temperature, the lowest operating temperature coincidentwith the design pressure. COMPRESS rates the MDMT for each component that is constructedfrom a UCS material per the rules in UCS-66. If the rated MDMT of the component is warmerthan the MDMT entered a deficiency is reported for that component.

Test -- The MAP (maximum allowable pressure - new and cold) is calculated at the testtemperature entered.

Impact Tested -- Click here if the material is impact tested. When you click here another boxappears with the temperature at which the test will be performed. Click on the box to change thetemperature. COMPRESS may require impact testing if it is required by Code rules.


Material Normalized-- If a UCS material is normalized, the temperature at which impacttesting is required is lower than when the material is not normalized (a different impact testexemption curve - see Figure UCS-66 - will be used). COMPRESS will require normalization ifrequired by Code rules.

Produced to Fine Grain Practice -- Check if material is produced to fine grain practice.Materials covered by the Curve B impact test exemption curve of Figure UCS-66 may use CurveC if they are normalized and produced to fine grain practice. Files created in early versions ofCOMPRESS for Windows will have this switch automatically activated if the "MaterialNormalized" switch is also activated.

PWHT Performed -- PWHT is normally a global setting. Users will have the option ofspecifying this as a local or global parameter. For a UCS-66 material, if PWHT (post weld heattreatment) is checked when not required by the ASME code, COMPRESS applies a 30 Freduction in impact testing exemption temperature to the minimum permissible temperature fromFigure UCS-66 for P-No. 1 materials. Note that UW-2 requires PWHT to be performed forcarbon steel and low alloy steel welded vessels if the vessel is to contain a lethal substance. If youcheck lethal service in the Design Mode screen COMPRESS enforces this provision of UW-2.

Maximize MDMT/No MAWP -- This will cause COMPRESS to find the lowest MDMTpossible for this component. This is done at the expense of the MAWP rating for the component,by taking the coincident stress ratio at design pressure.

Longitudinal Seam X-Ray -- Longitudinal Seam X-Ray -- This refers to the radiography onlongitudinal joints. The options are based on UW-11. A limited subset of options are availablefor pipe material. If a seamless pipe material is selected, the longitudinal seam RT choices areSeamless No RT and User Defined.

If a welded pipe material is selected, the longitudinal seam RT choices are Welded pipe, FullUW-11(a) Type 1, and User Defined. The full radiography option is available for the case wherefull radiography is performed on a welded pipe seam as may be required by paragraphs UCS-57,UNF-57, UHA-33, or UHT-57. For most applications, the Welded pipe option should bespecified.

If the material selection is a welded and seamless pipe specification, such as SA-333 6 Wld &smls pipe, the longitudinal seam RT choices are Welded pipe, Seamless No RT, Full UW-11(a)Type 1, and User Defined. These options allow the explicit selection of either welded or seamlesspipe. If the Welded pipe option is selected, then an additional option switch is provided toindicate whether the longitudinal seam is made with or without filler metal. If filler metal is notused, then the Welded pipe option is the correct selection. If filler metal is used in thelongitudinal seam weld, then the complete list of UW-11 radiography options are available. Theoptions provided ensure the correct joint efficiency in the component's UG-27 calculations, thecorrect UG-37 joint efficiency E1 for any attached nozzles, and the correct consideration of thejoint in the UG-116(e) radiography marking reported in the Setting Summary.


Circumferential Seam X-Ray -- This refers to the radiography on the circumferential joint.The joint efficiencies used are determined by the values entered for Longitudinal Seam X-Rayand Circumferential Seam X-Ray unless defined by the user. If you would like to use a jointefficiency not covered by the standard options, use the User-Defined option at the bottom of theX-Ray list.

Copy Last-- This pushbutton appears in the bottom left corner of the Cylinder screen only if acomponent has already been created. The Copy Last pushbutton automatically duplicates allinformation from the last similar component (to the left). If there are no similar components tothe left, COMPRESS will copy the next similar component to the right, if one exists. If a similarcomponent has not yet been added to the vessel, COMPRESS will copy all information from thelast component added. You can make copy last a default condition in Action/SetMode/Environment.

Component Commentary -- Anything you type in here will be reported in the ComponentCommentary section of the report for this component. As examples: a cylinder was made thickerthan required because the thicker material was in the shop; a more stringent requirement was metthan that required by Code; be sure to inspect the top head extra carefully for this vessel, etc.

Select Next or press F3 to accept all values and move to the Cylinder Dimensions screen:


Inner/Outer Diameter -- Select one.Shell Diameter --Input the diameter.Length -- input the length.

Thickness-- Minimum required thicknesses for internal and external pressures are shown in thedetails box to the right. COMPRESS presents a nominal thickness equal to the next commercialthickness equal to or greater than the minimum thickness.

- The design mode does not permit an entry for thickness less than that required by coderules. If you want to input a thickness less than required for the design, change to rating mode(Action/Set Mode/Calculation).

Trial Length Le -- This input applies when designing for external pressure and is available ifyou check the Consider Trial Length box. If you input a trial length, COMPRESS designs thecylinder in question for external pressure using this value as the unsupported length value forvacuum design. Using trial length you can quickly try different designs and get a reasonablespacing for vacuum /reinforcement rings. This is required because when first designing thecylinder, the nominal thickness and the ring spacing are both unknown, but interrelated. Resettrial length to zero when you are finished determining unsupported length, and add the rings afteryou are finished defining the pressure envelope.

The method to use is this: Adjust trial length until it is just smaller than the trial length whichwould produce a nominal plate thickness equal to that required by the internal pressure. If you arepurchasing standard plate thicknesses then this will be the optimum stiffener ring spacing forvacuum design.

Note that after you add rings COMPRESS changes the minimum required thickness but not thenominal thickness unless you have clicked the box Find minimum thickness for cylinders.

Number to Add -- You can add any number of identical cylinders to a vessel using this entry.

Exempt from minimum thickness requirements per UG-16(b)(2) -- The Division 1 A09Addenda provides for an exemption to the 1/16" (1.5mm) minimum thickness of pipes and tubesprovided they are protected from mechanical damage by some sort of external housing.

Select Pipe or Coupling -- This pushbutton is displayed if the cylinder is made from pipematerial. Access it if you want to have COMPRESS look up a particular pipe size and fill in thediameter and nominal thickness. When you select Pipe, the following screen appears:


Choose the pipe or coupling diameter and schedule.

Designing a Cylindrical Shell from a Pipe Material

When using pipe materials, COMPRESS will automatically divide all stress values by 0.85 perthe notes in Materials Section II, Part D. Longitudinal bending stress calculations for cylinders ortrn calculations from UG-37 for nozzle reinforcements will use the stress in the database dividedby 0.85.

When you use a pipe material, the special rules for fabricating cylinders from pipe will be usedby COMPRESS. COMPRESS automatically multiplies the nominal thickness by 0.875 forcylindrical shell design or nozzle neck thickness calculations per UG-45.

COMPRESS lists all the pipe sizes indicated in ASME B36.10M-2000 which includes non-standard schedule sizes. Select the "Standard Schedules Only" button to reduce the list to thestandard schedule sizes. Note, for vessels in non-U.S. Customary units the pipe size will includea 'DN' designation.


TransitionFor the common definitions located on the first dialog, see the cylinder page.

The dimensions screen is shown below:

Eccentricity Concentric, Eccentric Up, Eccentric Down for horizontal vessels -- If you want todesign an eccentric transition, tag eccentric up or down. The up and down options are identicalfrom a design point of view, but the sketch on the screen reflects your choice. COMPRESSconsiders eccentric transitions to be one side sloped, the other side parallel to the adjacentcylinder. Eccentric transitions are permitted only for horizontal vessels.

Large End Diameter -- Enter the diameter at the large end.


Overall Length -- Enter the overall axial length of the transition, weld seam to weld seam.

Per ASME Appendix 1-5(g), if the cone half-apex angle is > 30, a special juncturediscontinuity analysis is required. COMPRESS uses the discontinuity analysis presented inBednar (Ref. 18-2). When this analysis is performed, the following minimum cone axial length(Lmin) is required to eliminate any interaction between the discontinuity stresses:

L >= 2*sqrt(Rn*t*cos(alpha))

where t = shell thickness

n = cone thickness / cylinder thickness

Has Flare/Has Knuckle -- If the transition has a knuckle or flare, click these boxes to open theappropriate data screens.

Per UG-32(j), the inside knuckle radius (ikr) has the following limitations: ikr greaterthan or equal to (0.06Do) and ikr greater than or equal to (3*ThkKnuckle).


Ellipsoidal HeadFor the common definitions located on the first dialog, see the cylinder page.

Differences are described below.

Internal Head -- An internal head is enclosed entirely within the vessel and separates twodistinct pressure chambers. When an internal head is present in the pressure vessel the PressureSummary report will contain a separate table for each pressure chamber. Multiple internal headsmay be entered.

Minimum Head Thickness -- Minimum required thicknesses for internal and externalpressures are shown in the details box to the right. In the input field COMPRESS presents adefault value equal to the required thickness of the head determined by the design informationand ASME Code rules, and includes the specified total corrosion allowance.

Heads are typically manufactured from plate stock with a nominal thickness greater than theminimum thickness (required thickness). Also, head manufacturing processes generally resultwith some thinning of the material in the knuckle area or in the dished portion of the head,depending upon the manufacturing process used. Thinning or forming allowance is notconsidered by COMPRESS. The designer should determine what, if any, allowance is necessary.Typically, it is best to let the head manufacturer determine these values based upon their internalpractices.

COMPRESS performs all calculations for the formed portion of the head based upon the valueentered for minimum head thickness. This includes MDMT rating, pressure ratings, andreinforcing area and strength calculations for nozzles located in the head. In general, thesecalculations should be based on the minimum thickness of the head after forming. Consequently,the designer should enter the expected minimum thickness of the head after forming, as based onthe expected original nominal thickness of the plate. Entering the Code required thickness as the"minimum" may result in an overly conservative design.

Straight Flange Length/Nominal Straight Flange Thickness -- COMPRESS calculates thestraight flange as a separate object from the head.

Head Ratio (D/2h) -- Refers to the ratio of head diameter to head depth. For an ASME standardellipsoidal head this ratio is 2.

Details -- Click this to display a box showing the required minimum thickness based on internaland external pressure and the rated MDMT. In rating mode this box displays the MAP andMAWP for the head.


F & D HeadFor the common definitions located on the first dialog, see the cylinder page.

This component is similar to the ellipsoidal head design. , with two additional entries:

Crown Inner Radius -- This always refers to the head inside radius regardless of theinner/outer diameter switch setting. Enter the crown radius in the uncorroded condition. If thisinput is 0, COMPRESS assumes an inside crown radius = head outer diameter minus 6 inches.

Knuckle Inner Radius-- This always refers to the head inside radius regardless of theinner/outer diameter switch setting. Enter the inside crown radius in the uncorroded condition. Ifthis input is 0, COMPRESS assumes the knuckle radius = 6% of the inside crown radius.

If the head diameter is entered as inner diameter, enter zero for the crown inside radiusand knuckle inside radius after the thickness of the head is determined. This allows COMPRESSto recalculate the outer diameter of the head using the correct thickness. After this is done, theassumed knuckle and crown radii will meet UG-32(j).


Hemi HeadDesign of hemispherical heads is similar to that of ellipsoidal heads.

For the common definitions located on the first dialog, see the cylinder page.

Internal Head -- An internal head is enclosed entirely within the vessel and separates twodistinct pressure chambers. When an internal head is present in the pressure vessel the PressureSummary report will contain a separate table for each pressure chamber. Multiple internal headsmay be entered.

Details -- Click this to display a box showing the required minimum thickness based on internaland external pressure and the rated MDMT. In rating mode this box displays the MAP andMAWP for the head.


Spherically Dished CoverThis component is designed in accordance to ASME Section VIII Division 1 Appendix 1-6 andare only permitted on Division 1 vessels.

There are four (4) types of spherically dished covers available. They are designated as types 'a'(a1 or a2), 'b', 'c' and 'd' which correspond to the sketches in appendix 1-6.

Type 'a' are a combination of an F&D head and an appendix 2 flange. Currently this type ofdished cover must be created by using the F&D head and appendix 2 components.

There are three (3) input dialog screens for spherically dished covers.

General Inputs

This dialog allows for the specification of the type of dished cover, the design parameters ofpressure, temperature, corrosion and radiography as well as the material specification for both thehead and flange material. The inputs are similar to inputs for other components.

Flange Data Inputs

The second dialog allows for the specification of specific data for the flange portion of the head.This is the same as the Flange Type selection for a body flange.

Spherically Dished Cover Dimensions

This dialog has sections for head dimension inputs and flange dimension inputs.

The 'Details' button will show or hide a details box with the required flange thickness, requiredhead thickness, rated MDMT, MAWP, MAP and MAEP for the dished cover.

Head Dimension Inputs

Crown Inner Radius -- This always refers to the head inside radius regardless of theinner/outer diameter switch setting. Enter the crown radius in the uncorroded condition.

Minimum Head Thickness Minimum thickness for internal and external pressures.COMPRESS presents the minimum required thickness. In design mode the input value must notbe less than the required thickness. If the details box is shown the required thicknesses due tointernal and external pressure are shown.


Flange Dimension Inputs

The flange dimension inputs are similar to the Body Flange Dimension Inputs. The 'live' sketchshows a cross section of the spherically dished cover based on the current inputs. Anydimensional change will be shown in the sketch.

Geometry errors will be trapped by the dialog and indicated by a red "Errors" button.


ASME B16.9 Pipe CapFor the common definitions located on the first dialog, see the cylinder page.

B16.9 Pipe Caps are a special type of ellipsoidal head. Differences are described below.

Select Pipe Cap (NPS) -- Pipe caps are specified by nominal pipe size, and their internalpressure ratings are that of straight seamless pipe of the same size. Clicking this button will openthe Pipe Look-Up dialog. You may select a pipe size and thickness within this dialog, or you mayspecify these settings manually with the Head Diameter and Nominal Thickness inputs.

Pipe Cap Overall Length, E -- For NPS of 24 and under, the pipe cap overall length, E, isautomatically set as specified in ASME B16.9 Table 10, based upon the Limiting Wall Thicknessfor Length E.

Override automatic lookup of E from Table I-10 -- A user-defined E1 may be entered forNPS greater than 24 per Note 2 of ASME B16.9 Table 10.

Note -- When a nozzle is attached to a pipe cap, calculations for this 'modified' pipe cap are doneas for an ellipsoidal head.


Bolted CoverFor the common definitions located on the first dialog, see the cylinder page.

The bolted cover option is not accessed in the same way as other components in COMPRESS. Ifyou select Bolted Cover from the Component menu, the following message appears:

This screen displays the procedure for adding a flat bolted head to a vessel. Since flat boltedcovers are not independent components like cylinders, transitions, etc., a different method isused. When designed per UG-34, bolted covers are dependent on the attached flange with respectto bolt circle, gasketing, etc. In COMPRESS, a bolted cover can be designed only in conjunctionwith an Appendix 2 flange.

To add a bolted cover to a flange, the Cover Also option on the Flange screen must be checked.Then COMPRESS presents the Bolted Cover screen:


Input all values in the above screen and click Next>>:


Factor C -- Factor C is the factor from UG-34 and is dependent upon the method of attachmentof the head and other items as listed in the appropriate code paragraph.

For flanges having full face gaskets, you should select C = .25 (sketch for Figure UG-34).


Welded CoverFor the common definitions located on the first dialog, see the cylinder page.

The second dialog is shown below:

The welded cover type is selected from the Head sketch type input.

In Division 1:


In Division 2:

Various inputs will appear depending on which sketch is selected:

Factor C -- The item selected from this listing corresponds to the appropriate constructionas illustrated in ASME code Fig. UG-34.


Increase t for reinforcement per UG-39(d) -- The code allows reinforcement ofopenings in flat heads to be calculated per the alternative rules in UG-39. If you want torein-force openings in the flat welded head by an increased thickness (and the openingmeets the criteria of UG-34), then check this box.Head Diameter -- Enter the head diameter (d) as illustrated in UG-34 for theappropriate sketch.Thickness (t)-- Enter a value for the inner corner radius of the flat head, if applicable.This radius contributes to the overall length of the head as well.Inner Corner Radius (r) -- Enter a value for the thickness of the flat head.Flange Length (Y) -- Enter a value for the length of the welded cover straight flange, ifapplicable. No straight flange is added if Y is zero. Minimum length to achieve a 3:1taper is shown to the right of the box and in the details dialog. If a Sketch (a) or Division2 Detail (1) type welded cover is selected, the space to the right of the input box insteaddisplays the minimum Y to achieve C = 0.10.Flange Thickness (tf) -- Enter a value for the thickness of the straight flange. Thisinput is applicable only to UG-34 Sketch (b-1) and Division 2 Table 4.6.1 Detail (2)welded covers.Head Inset (e) -- The distance that the head is set into the parent cylinder. This input isapplicable only to UG-34 Sketch (f) welded covers.

The Head corner joint input is available to better detail the weld joint when specifying aUG-34 Sketch (h) or UG-34 Sketch (i) (Division 2 Table 4.6.1 Details 5 and 6).

In Division 1:

In Division 2:


Appendix 14 Flat Head

When a central opening in a flat head exceeds one-half of the head diameter, use the Component -> Appendix 14 Flat Head menu option (Component -> 4.6.4 Flat head with large opening inDivision 2) to add the head and central opening. Appendix 14 heads must be located on acylinder or nozzle in order to complete the calculations.

Note that the specific choice to use Appendix 14 is up to the designer and is not automaticallydone by COMPRESS.


The second dialog is shown below:


Head sketch type -- Figure UG-34 sketches (a), (b-1), (b-2), (d), (g), (h), and (i) weldconfigurations are available.Head corner joint -- When Figure UG-34 sketch (h) or (i) are selected, Figure UW-13.2corner joint corner joint sketches (a) through (f) are available.Head includes centrally located nozzle -- Deactivate this option to design a flat integralhead without an attached nozzle.Groove Welds are Full Penetration -- The design rules for an opening without anattached nozzle or hub are used when the central nozzle is attached with partial penetrationwelds .Nozzle Connection -- Select this option to attach or edit an ASME B16.5/B16.47 flangeor Appendix 2 flange to the end of the large central nozzle.Increase t for reinforcement per UG-39(c)(2) -- As an alternative to the areareplacement rules for rim openings, the flat integral head thickness may be increased toprovide reinforcement by activating this option switch. For multiple rim openings when thespacing between adjacent openings is less than twice but equal to or greater than 1.25 theaverage diameter of the pair, the ligament rules of UG-39(e)(2) are used.User defined inputs -- Selecting this option brings up the dialog shown below, whichincludes further inputs for nozzle and shell values.

Rim openings may be added after the integral flat is created using the Nozzle menu option. Rimopening spacing checks per UG-39(b)(2) and (b)(3) are automatically performed.


Body FlangeSelect Body Flange from the Component menu to display a submenu.

If you select ASME B16.5/16.47 Flange from the Flange submenu, the following screen appears:

See the Nozzle Dialog section for more information on ASME B16.5/16.47 flanges.

If you select Appendix 2 from the Flange submenu, the following screen appears:



Corrosion: bore -- This is the corrosion allowance on the inside of the flange. For anintegral type this means that the "B" dimension entered is increased by two times the borecorrosion allowance.Corrosion: flange -- This corrosion allowance is applied to the flange thickness (t)dimension as shown on the weld neck integral sketch. The flange thickness is reduced bythe flange corrosion allowance on the flange.User Defined Moment on FlangeRadial Load on Flange -- If the flange is attached to a cylinder or cone COMPRESSconsiders any bending moments and/or weights supported by the flange. COMPRESScalculates the local bending moment and overhead weight and determines an equivalentpressure to use for designing (per Modern Flange Design). If you select "use these values",COMPRESS uses these user inputs instead.

A positive force / weight is taken as compr

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