Design Calculation

0

Computer program verification

incl. evidence of alternate calculation per method applied

1

Drawing + Calculation

a) Drawing No. and Revision

b) ASME Code Edition and Addenda

c) Code Cases

d) Units: SI/U.S. Customary

e) Design- operational data

f) MDMT(see also point 12)

g) Materials

h) Dimensions(ID, T, OD etc)

I) Loads (use separate checklist as well)

j) Check permissible S- value listed in applicable Code Section

k) Services Restrictions

l) Nameplate data, location of nameplate

m) National Board registration    Y/N

n) CRN- Registration                  Y/N

o) Identification of joints on the drawing

p) Assignment WPS to joints on the drawing

q) Compliance of groove design drawing with   ranges on WPS

2

Test Pressure (Minimum)

a) Hydrostatic Test

    1.3*MAWP*(S[Ttest] / S [Tdesign] )

b) Pneumatic Test

   1.1* MAWP*(S[Ttest/  S [Tdesign])

3

Type of Weld Joint

a) RT Examination

b) Selection, location of "Spot"

c) NDE(PT/MT) on Corner Joints Joggle Joint

d) Hubbed flanges from rolled plate

4

Corrosion Allowance

5

Tolerances

a) Wall thickness, plate and pipe

b) Misalignment

c) Tapered transitions

d) Staggered longitudinal joints

e) Out-of-roundness for internal pressure

f)  Out-of-roundness for ext. pressure calculated + data transfered to prod./QC

6

Inspection Openings

7

Check whether design calculations have been made for all presure bearing parts:

a) Shell, conical reducer section(conical reducer section shall also meet the requirements of Appendix 1-5 and/or 1-8)

b) Dished heads, conical heads

c) Compensation of openings(large openings see also App. 1-7 or 1-10)

d) Flanges (App. 2 or ASME B16.5)

e) Covers, flat heads

f)  Bolts

g) Tube sheets: applicability and use od UHX(otherwise, see also TEMA)

h) Expansion joint (see also EJMA)

i)  Nozzle attachment welds(allowable stresses in welds)

j)  External pressure

k) Jacketed vessel Appendix 9

l)  loadings e.g. vessel supports

m) shell sections and heads extreme fibre elongation

8

Minimum wall thickness

a) Shell

b) Dished head

c) Nozzle

d) Remaining wall thickness underneath tapped holes

9

Minimum weld dimensions

a) Flange attachment to the nozzle

b) Nozzle attachment to the shell or head

c) Attachment of flat heads + covers

10

Pressure rating of standard parts based on material and temperature

(ASME Products) Calculated at straight seamless pipe

11

Heat treatment

12

Impact Test Requirements

(cryogenic vessels) Exemptions documented for all mat.

13

Exposed inside edges chamfered or rounded

14

Telltale holes in nozzle reinf. plates

15

Split/ segmental reinf. plates

16

Referenced standards

17

Proof Test

18

Partial Data Report