vd-sru-v-004-100-rev a

DESCON ENGINEERING LIMITED

Lahore Manufacturing Works

COMPRESS Pressure Vessel Design Calculations

Item. : Sulphur Locks (Funnel Internal Vessel)Vessel Tag No. : SRU-V-004 A/B/C/D/E/F

Contractor / Client. : Attock Refinery Upgradation Project/HyundaiEngineering Corporation

Project Number./DocumentNumber : DM. 13611 / DM.13611-P11-CS-062-A (REV A) (1 OF 7)

Designer: S.Z.A. (Syed Zain Ali)Date: Wednesday, January 15, 2014

This Document is the exclusive property of DESCON ENGINEERING LTD. and may not becopied, exploited, duplicated, reproduced or communicated to a third party in any form without the

prior written approval of DESCON ENGINEERING LTD.

Deficiencies Summary

Deficiencies for N9 Jacket (N9 Jacket)N9 Jacket: SA-106 B Smls. Pipe: PWHT is mandatory for thicknesses over 32 mm. (nozzle neck UW-40(f)(3)).

Deficiencies for Sleeve CoverSA-105: PWHT is mandatory for thicknesses over 32 mm.

Warnings Summary

Warnings for ASME B16.5/16.47 Blind on 12" x 10 " ANSI Reducing FlangeInternal design pressure varies across this chamber. (warning)External design pressure varies across this chamber. (warning)Check the following component(s): (warning)Flange #6 (warning)N9 Jacket (N9 Jacket) (warning)N9 Sleeve (N9 Sleeve ) (warning)

Warnings for Flange #6The hydrostatic end force on this flange cannot be determined until a vessel support component is specified.(warning)

Warnings for Sulphur Outlet 2" x 3" (Steam Jacketed) (N10)ASME B16.5: External loads have not been considered in the flange pressure rating. (warning)

Warnings for VesselInconsistent PWHT: The vessel has one or more components with PWHT, but not all components have PWHTspecified. (warning)

ASME B16.5 / B16.47 Flange Warnings Summary

ASME B16.5 / 16.47 Flanges with Warnings

Flange Applicable Warnings

12" x 10 " ANSI Reducing Flange 1, 2

Sulphur Outlet 2" x 3" (Steam Jacketed) (N10) 1, 2

ASME B16.5 / 16.47 Flange Warnings

No. Warning

1 For Class 150 flanges, ASME B16.5 para. 5.4.3 recommends gaskets to be in accordance with NonmandatoryAppendix B, Table B1, Group No. I.

2 For Class 150 flanges when temperature exceeds 200 °C, care should be taken to avoid imposing severeexternal loads and/or thermal gradients or leakage may develop. ASME B16.5 para. 2.5.2.

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Nozzle Schedule

Nozzlemark Service Size Materials Impact

Tested Normalized FineGrain Flange Blind

N10 Sulphur Outlet 2" x 3" (SteamJacketed)

NPS 2 Sch 80 (XS)DN 50 Nozzle SA-106 B Smls.

Pipe No No No NPS 2 Class 150SO A105 No

N9 Jacket N9 Jacket NPS 3 Sch 80 (XS)DN 80 Nozzle SA-106 B Smls.

Pipe No No No N/A No

N9Sleeve N9 Sleeve 128.9 ID x 10 Nozzle SA-105 No No No

App 2 Weld NeckIntegralSA-105

SA-105

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Nozzle Summary

Nozzlemark

OD(mm)

tn

(mm)Req t

n(mm)

A1? A2?Shell Reinforcement

Pad Corr(mm)

Aa/A

r(%)

Nom t(mm)

Design t(mm)

User t(mm)

Width(mm)

tpad

(mm)

N10 60.33 5.54 4.1 Yes Yes 9.27 N/A N/A N/A 1.5 Exempt

N9 Jacket 88.9 7.62 7.2 Yes Yes 40* N/A N/A N/A 1.5 Exempt

N9 Sleeve 148.9 10 0 Yes Yes 9.27 N/A N/A N/A 1.5 Exempt

tn: Nozzle thicknessReq tn: Nozzle thickness required per UG-45/UG-16Nom t: Vessel wall thicknessDesign t: Required vessel wall thickness due to pressure + corrosion allowance per UG-37User t: Local vessel wall thickness (near opening)Aa: Area available per UG-37, governing conditionAr: Area required per UG-37, governing conditionCorr: Corrosion allowance on nozzle wall* Head minimum thickness after forming

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Pressure Summary

Pressure Summary for Chamber bounded by Bottom Dishend (Internal and ASME B16.5/16.47 Blind on 12" x10 " ANSI Reducing Flange

IdentifierP

Design( kg/cm2)

T

Design( °C)

MAWP( kg/cm2)

MAP( kg/cm2)

MAEP( kg/cm2)

Te

external( °C)

MDMT( °C)

MDMTExemption

ImpactTested

ASME B16.5/16.47 Blind on 12" x 10 " ANSI ReducingFlange 3.5 220 13.38 19.99 N/A 220 -48 Note 1, 2 No

Shell 1 3.5 220 46.63 73.87 22.73 220 -105 Note 3 No

Straight Flange on Bottom Dishend (Internal 3.5 220 56.91 83.98 29.57 220 -105 Note 5 No

Bottom Dishend (Internal 3.5 220 48.29 76.21 20.64 220 -105 Note 4 No

12" x 10 " ANSI Reducing Flange 3.5 220 13.38 19.99 N/A 220 -48 Note 1, 2 No

Sulphur Outlet 2" x 3" (Steam Jacketed) (N10) 3.5 220 3.5 3.5 5.6 220 -48 Note 6 No

N9 Jacket (N9 Jacket) 5.6 220 5.6 5.6 3.5 220 -105 Note 7 No

N9 Sleeve (N9 Sleeve ) 0 220 N/A N/A N/A 220 N/A N/A No

Flange #6 3.5 220 65.36 65.36 426.65 220 -48 Note 8 No

Flange #6 - Flange Hub 3.5 220 166.99 199.6 91.85 220 -105 Note 9 No

Sleeve Cover 3.5 220 49.95 54.32 145.03 220 -105 Note 10 No

Chamber design MDMT is -28.89 °CChamber rated MDMT is -48 °C @ 3.5 kg/cm2

Chamber MAWP hot & corroded is 3.5 kg/cm2 @ 220 °C

Chamber MAP cold & new is 3.5 kg/cm2 @ 21.11 °C

This pressure chamber is not designed for external pressure.

Notes for MDMT Rating:

Note # Exemption Details

1. UCS-66(b)(3): Coincident ratio = 0.1751

2. Flange rated MDMT = -105 °C Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C

3. Material is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0734)

4. Straight Flange governs MDMT


6.Flange rating governs:Flange rated MDMT = -105 °CBolts rated MDMT per Fig UCS-66 note (c) = -48 °C

UCS-66(b)(3): Coincident ratio = 0.1751

7. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0216).

8. UCS-66(b)(1)(b) has been applied.Flange is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0536) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C


10. Bolted cover is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0696).

Design notes are available on the Settings Summary page.

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Revision History

No. Date Operator Notes

0 1/13/2014 Syed.Zain New vessel created ASME Section VIII Division 1 [COMPRESS 2013 Build 7320]

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Settings Summary

COMPRESS 2013 Build 7320

Units: MKS

Datum Line Location: 0.00 mm from bottom seam

Design

ASME Section VIII Division 1, 2010 Edition, A11 Addenda Metric

Design or Rating: Get Thickness from PressureMinimum thickness: 1.5 mm per UG-16(b)Design for cold shut down only: NoDesign for lethal service (full radiography required): NoDesign nozzles for: Design P onlyCorrosion weight loss: 100% of theoretical lossUG-23 Stress Increase: 1.20Skirt/legs stress increase: 1.0Minimum nozzle projection: 152.4 mmJuncture calculations for α > 30 only: YesPreheat P-No 1 Materials > 1.25" and <= 1.50" thick: NoUG-37(a) shell tr calculation considers longitudinal stress: NoButt welds are tapered per Figure UCS-66.3(a).

Hydro/Pneumatic Test

Shop Hydrotest Pressure: 1.3 times vesselMAWP

Test liquid specific gravity: 1.00Maximum stress during test: 90% of yield

Required Marking - UG-116

UG-116(e) Radiography: RT1UG-116(f) Postweld heat treatment: PHT

Code Cases\Interpretations

Use Code Case 2547: NoApply interpretation VIII-1-83-66: YesApply interpretation VIII-1-86-175: YesApply interpretation VIII-1-01-37: YesNo UCS-66.1 MDMT reduction: NoNo UCS-68(c) MDMT reduction: NoDisallow UG-20(f) exemptions: No

UG-22 Loadings

UG-22(a) Internal or External Design Pressure : YesUG-22(b) Weight of the vessel and normal contents under operating or test conditions: No

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UG-22(c) Superimposed static reactions from weight of attached equipment (external loads): NoUG-22(d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: NoUG-22(f) Wind reactions: NoUG-22(f) Seismic reactions: NoUG-22(j) Test pressure and coincident static head acting during the test: NoNote: UG-22(b),(c) and (f) loads only considered when supports are present.

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Thickness Summary

ComponentIdentifier

Material Diameter(mm)

Length(mm)

Nominal t(mm)

Design t(mm)

Total Corrosion(mm)

JointE

Load

Shell 1 SA-106 B Smls. Pipe 254.51 ID 323 9.27 5.06 3 1.00 External

Straight Flange on Bottom Dishend (Internal SA-234 WPB 254.51 ID 55.26 9.27 5.06 3 1.00 External

Bottom Dishend (Internal SA-234 WPB 254.51 ID 71.74 9.27 4.77 3 1.00 External

Sleeve Cover SA-105 249 OD 40 40* 34.39 1.5 1.00 External

Nominal t: Vessel wall nominal thickness

Design t: Required vessel thickness due to governing loading + corrosion

Joint E: Longitudinal seam joint efficiency

* Head minimum thickness after forming

Load

internal: Circumferential stress due to internal pressure governs

external: External pressure governs

Wind: Combined longitudinal stress of pressure + weight + wind governs

Seismic: Combined longitudinal stress of pressure + weight + seismic governs

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Weight Summary

Component

Weight ( kg) Contributed by Vessel Elements SurfaceAream2Metal

New*

Metal

Corroded* Insulation InsulationSupports Lining Piping

+ Liquid

OperatingLiquid Test Liquid

New Corroded New Corroded

ASME B16.5/16.47 Blind on 12" x 10 " ANSIReducing Flange 36.3 36.3 0 0 0 0 0 0 0 0 0.17

Shell 1 18.2 12.3 0 0 0 0 0 0 19.3 19.8 0.26

Bottom Dishend (Internal 9 6.1 0 0 0 0 0 0 5.2 5.5 0.13

TOTAL: 63.5 54.7 0 0 0 0 0 0 24.5 25.3 0.56

* Shells with attached nozzles have weight reduced by material cut out for opening.

Component

Weight ( kg) Contributed by Attachments SurfaceAream2Body Flanges Nozzles &

Flanges PackedBeds

Ladders &Platforms

Trays TraySupports

Rings&

Clips

VerticalLoads

New Corroded New Corroded

ASME B16.5/16.47 Blind on 12" x 10 " ANSIReducing Flange 0 0 0 0 0 0 0 0 0 0 0

Shell 1 19.5 19.5 36.4 32.8 0 0 0 0 0 0 0.42

Bottom Dishend (Internal 0 0 3.5 3.1 0 0 0 0 0 0 0.04

TOTAL: 19.5 19.5 39.8 35.9 0 0 0 0 0 0 0.34

Vessel operating weight, Corroded: 110 kgVessel operating weight, New: 123 kgVessel empty weight, Corroded: 110 kgVessel empty weight, New: 123 kgVessel test weight, New: 147 kgVessel test weight, Corroded: 135 kgVessel surface area: 0.91 m2

Vessel center of gravity location - from datum - lift condition

Vessel Lift Weight, New: 123 kgCenter of Gravity: 210.23 mm

Vessel Capacity

Vessel Capacity** (New): 21 litersVessel Capacity** (Corroded): 22 liters**The vessel capacity does not include volume of nozzle, piping or other attachments.

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Hydrostatic Test

Shop test pressure determination for Chamber bounded by Bottom Dishend (Internal and ASME B16.5/16.47Blind on 12" x 10 " ANSI Reducing Flange based on MAWP per UG-99(b)

Shop hydrostatic test gauge pressure is 4.55 kgf/cm2 at 21.11 °C (the chamber MAWP = 3.5 kgf/cm2)

The shop test is performed with the vessel in the horizontal position.

IdentifierLocal testpressurekgf/cm2

Test liquidstatic head

kgf/cm2

UG-99(b)stressratio

UG-99(b)pressure

factor12" x 10 " ANSI Reducing Flange (1) 4.58 0.03 N/A 1.30

Shell 1 4.58 0.03 1 1.30

Straight Flange on Bottom Dishend (Internal 4.58 0.03 1 1.30

Bottom Dishend (Internal 4.58 0.03 1 1.30

Flange #6 - Flange Hub 4.59 0.04 1.0073 1.30

Sleeve Cover 4.59 0.04 1.0073 1.30

Flange #6 4.59 0.04 1.0073 1.30

N9 Jacket (N9 Jacket) 4.62 0.07 1 1.30

N9 Sleeve (N9 Sleeve ) 4.59 0.04 1.0073 1.30

Sulphur Outlet 2" x 3" (Steam Jacketed) (N10) 4.57 0.02 1 1.30

Notes:(1) 12" x 10 " ANSI Reducing Flange limits the UG-99(b) stress ratio.(2) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-mostflange.

The field test condition has not been investigated for the Chamber bounded by Bottom Dishend (Internal and ASMEB16.5/16.47 Blind on 12" x 10 " ANSI Reducing Flange.

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Vacuum Summary

Component Line of SupportElevation

above Datum(mm)

Length Le(mm)

ASME B16.5/16.47 Blind on 12" x 10 " ANSI Reducing Flange - 362.5 N/A

- ASME B16.5/16.47 Blind on 12" x 10 " ANSI Reducing Flange 332.27 N/A

Shell 1 Top - 323 409.24

Shell 1 Bottom - 0 409.24

Straight Flange on Bottom Dishend (Internal Top - 0 409.24

Straight Flange on Bottom Dishend (Internal Bottom - -55.26 409.24

- 1/3 depth of Bottom Dishend (Internal -76.97 N/A

Bottom Dishend (Internal - -127 N/A

Note

For main components, the listed value of 'Le' is the largest unsupported length for the component.

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Engineering Notes

1- Nozzle N11 Has 2" x 3" Reducing Flange2- Top Flange Shall not Been Considered3- This Vessel Is Externally Jacketed with Steam Jacket4- N9 Sleeve is not Considered as Pressure Part6-

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Shell 1


Component: CylinderMaterial specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40)Pipe Description: NPS 10 Sch 40 (Std) DN 250Material is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0734)

Internal design pressure: P = 3.5 kg/cm2 @ 220 °CExternal design pressure: Pe = 5.6 kg/cm2 @ 220 °C

Static liquid head:

Pth = 0.03 kg/cm2 (SG = 1, Hs = 265.43 mm, Horizontal testhead)

Corrosion allowance Inner C = 1.5 mm Outer C = 1.5 mm

Design MDMT = -28.89 °C No impact test performedRated MDMT = -105 °C Material is not normalized

Material is not produced to Fine Grain PracticePWHT is not performed

Radiography: Longitudinal joint - Seamless No RTTop circumferential joint - N/ABottom circumferential joint - Full UW-11(a) Type 1

Estimated weight New = 18.2 kg corr = 12.3 kgCapacity New = 16.43 liters corr = 16.82 liters

ID = 254.51 mmLengthLc

= 323 mm

t = 9.27 mm

Design thickness, (at 220 °C) UG-27(c)(1)

t = P*R / (S*E - 0.60*P) + Corrosion= 3.5*128.76 / (1,203.27*1.00 - 0.60*3.5) + 3= 3.38 mm

Maximum allowable working pressure, (at 220 °C) UG-27(c)(1)

P = S*E*t / (R + 0.60*t) - Ps= 1,203.27*1.00*5.11 / (128.76 + 0.60*5.11) - 0= 46.63 kg/cm2

Maximum allowable pressure, (at 21.11 °C) UG-27(c)(1)

P = S*E*t / (R + 0.60*t)= 1,203.27*1.00*8.11 / (127.26 + 0.60*8.11)= 73.87 kg/cm2

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External Pressure, (Corroded & at 220 °C) UG-28(c)

L / Do = 409.24 / 273.05 = 1.4988Do / t = 273.05 / 2.06 = 132.5420From table G: A = 0.000578From table CS-2Metric: B = 556.6739 kg/cm2

Pa = 4*B / (3*(Do / t))= 4*556.67 / (3*(273.05 / 2.06))= 5.6 kg/cm2

Design thickness for external pressure Pa = 5.6 kg/cm2

ta = t + Corrosion = 2.06 + 3 = 5.06mm

Maximum Allowable External Pressure, (Corroded & at 220 °C) UG-28(c)


Pa = 4*B / (3*(Do / t))= 4*910.99 / (3*(273.05 / 5.11))= 22.73 kg/cm2

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ASME B16.5/16.47 Blind on 12" x 10 " ANSI Reducing Flange

This is an ASME B16.5/16.47 rated blind flange.

ASME B16.5-2009 FlangeDescription: NPS 10 Class 150 SO A105

Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln.32)

Blind included: YesRated MDMT: -48°C(UCS-66(b)(3): Coincident ratio = 0.1751)(Flange rated MDMT = -105 °CBolts rated MDMT per Fig UCS-66 note (c) = -48 °C)Liquid static head: 0 kgf/cm2

MAWP rating: 13.38 kgf/cm2 @ 220°CMAP rating: 19.99 kgf/cm2 @ 21.11°CHydrotest rating: 30.59 kgf/cm2 @ 21.11°CExternal fillet weld leg (UW-21): 10.92 mm (10.92 mm min)Internal fillet weld leg (UW-21): 8.14 mm (8.14 mm min)PWHT performed: No

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Straight Flange on Bottom Dishend (Internal


Component: Straight FlangeMaterial specification: SA-234 WPB (II-D Metric p. 10, ln. 42)Material is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0599)


Static liquid head:


Corrosion allowance Inner C = 1.5 mm Outer C = 1.5 mm



Radiography: Longitudinal joint - Seamless No RTCircumferential joint - Full UW-11(a) Type 1


ID = 254.51 mmLengthLc

= 55.26 mm

t = 9.27 mm


t = P*R / (S*E - 0.60*P) + Corrosion= 3.5*128.76 / (1,203.27*1.00 - 0.60*3.5) + 3= 3.38 mm


P = S*E*t / (R + 0.60*t) - Ps= 1,203.27*1.00*6.27 / (128.76 + 0.60*6.27) - 0= 56.91 kg/cm2


P = S*E*t / (R + 0.60*t)= 1,203.27*1.00*9.27 / (127.26 + 0.60*9.27)= 83.98 kg/cm2


L / Do = 409.24 / 273.05 = 1.4988Do / t = 273.05 / 2.06 = 132.5420From table G: A = 0.000578

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From table CS-2Metric: B = 556.6739 kg/cm2

Pa = 4*B / (3*(Do / t))= 4*556.67 / (3*(273.05 / 2.06))= 5.6 kg/cm2


ta = t + Corrosion = 2.06 + 3 = 5.06mm



Pa = 4*B / (3*(Do / t))= 4*966.26 / (3*(273.05 / 6.27))= 29.57 kg/cm2

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Bottom Dishend (Internal

ASME Section VIII, Division 1, 2010 Edition, A11 Addenda Metric

Component: ASME B16.9 Pipe Cap (modified)NPS and Schedule: NPS 10 Sch 40 (Std) DN 250Material Specification: SA-234 WPB (II-D Metric p.10, ln. 42)Straight Flange governs MDMT

Internal design pressure: P = 3.5 kgf/cm2 @ 220 °CExternal design pressure: Pe = 5.6 kgf/cm2 @ 220 °C

Static liquid head:

Ps= 0 kgf/cm2 (SG=1, Hs=0 mm Operating head)Pth= 0.03 kgf/cm2 (SG=1, Hs=265.43 mm Horizontal test head)

Corrosion allowance: Inner C = 1.5 mm Outer C = 1.5 mm

Design MDMT = -28.89°C No impact test performedRated MDMT = -105°C Material is not normalized

Material is not produced to fine grain practicePWHT is not performedDo not Optimize MDMT / Find MAWP

Radiography: Category A joints - Seamless No RT Head to shell seam - Full UW-11(a) Type 1

Estimated weight*: new = 9 kg corr = 6.1 kgCapacity*: new = 5 liters corr = 5.1 liters* includes straight flange

Inner diameter = 254.51 mmNominal head thickness = 9.27 mmMinimum head thickness = 8.11 mmOverall length E = 127 mmStraight flange length Lsf = 55.26 mmNominal straight flange thickness tsf = 9.27 mmResults Summary

The governing condition is external pressure.Minimum thickness per UG-16 = 1.5 mm + 3 mm = 4.5 mmDesign thickness due to internal pressure (t) = 3.37 mmDesign thickness due to external pressure (te) = 4.77 mmGoverning straight flange design thickness = 5.06 mmMaximum allowable working pressure (MAWP) = 48.29 kgf/cm2

Maximum allowable pressure (MAP) = 76.21 kgf/cm2

Maximum allowable external pressure (MAEP) = 20.64 kgf/cm2

K (Corroded)

K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (257.51 / (2*65.13))2]=0.984723

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K (New)

K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (254.51 / (2*63.63))2]=1

Design thickness for internal pressure, (Corroded at 220 °C) Appendix 1-4(c)

t = P*D*K / (2*S*E - 0.2*P) + Corrosion= 3.5*257.51*0.984723 / (2*1,203.26*1 - 0.2*3.5) + 3= 3.37 mm

The head internal pressure design thickness is 3.37 mm.

Maximum allowable working pressure, (Corroded at 220 °C) Appendix 1-4(c)

P = 2*S*E*t / (K*D + 0.2*t) - Ps= 2*1,203.26*1*5.11 / (0.984723*257.51 +0.2*5.11) - 0= 48.29 kgf/cm2

The maximum allowable working pressure (MAWP) is 48.29 kgf/cm2.

Maximum allowable pressure, (New at 21.11 °C) Appendix 1-4(c)

P = 2*S*E*t / (K*D + 0.2*t) - Ps= 2*1,203.26*1*8.11 / (1*254.51 +0.2*8.11) - 0= 76.21 kgf/cm2

The maximum allowable pressure (MAP) is 76.21 kgf/cm2.

Design thickness for external pressure, (Corroded at 220 °C) UG-33(d)

Equivalent outside spherical radius (Ro)Ro = Ko*Do

= 0.8564*273.05= 233.84 mm

A = 0.125 / (Ro / t)= 0.125 / (233.84 / 1.76)= 0.000943

From Table CS-2 Metric: B = 742.117kgf/cm2

Pa = B / (Ro / t)= 742.117 / (233.84 / 1.76)= 5.6 kgf/cm2

t = 1.76 mm + Corrosion = 1.76 mm + 3 mm = 4.77 mmCheck the external pressure per UG-33(a)(1) Appendix 1-4(c)

t = 1.67*Pe*D*K / (2*S*E - 0.2*1.67*Pe) + Corrosion= 1.67*5.6*257.51*0.984723 / (2*1,203.26*1 - 0.2*1.67*5.6) + 3= 3.99 mm

The head external pressure design thickness (te) is 4.77 mm.

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Maximum Allowable External Pressure, (Corroded at 220 °C) UG-33(d)

Equivalent outside spherical radius (Ro)Ro = Ko*Do

= 0.8564*273.05= 233.84 mm

A = 0.125 / (Ro / t)= 0.125 / (233.84 / 5.11)= 0.002731

From Table CS-2Metric: B = 944.6632 kgf/cm2

Pa = B / (Ro / t)= 944.6632 / (233.84 / 5.11)= 20.6394 kgf/cm2

Check the Maximum External Pressure, UG-33(a)(1) Appendix 1-4(c)

P = 2*S*E*t / ((K*D + 0.2*t)*1.67) - Ps2= 2*1,203.26*1*5.11 / ((0.984723*257.51 +0.2*5.11)*1.67) - 0= 28.92 kgf/cm2

The maximum allowable external pressure (MAEP) is 20.64 kgf/cm2.

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12" x 10 " ANSI Reducing Flange



Blind included: YesRated MDMT: -48°C(UCS-66(b)(3): Coincident ratio = 0.1751)(Flange rated MDMT = -105 °CBolts rated MDMT per Fig UCS-66 note (c) = -48 °C)Liquid static head: 0 kgf/cm2


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Flange #6

ASME VIII-1, 2010 Edition, A11 Addenda Metric, Appendix 2 Flange Calculations

Flange is attached to: N9 Sleeve (N9 Sleeve )Flange type: Weld neck integralFlange material specification: SA-105 (II-D Metric p. 18, ln. 5)

Bolt material specification: SA-193 B7 Bolt <= 64 (II-D Metric p.334, ln. 32)

Bolt Description: 0.75 in Series 8 ThreadInternal design pressure, P: 3.5 kgf/cm2 @ 220 °CRequired flange thickness, tr: 32.57 mmMaximum allowable working pressure,MAWP: 65.36 kgf/cm2 @ 220 °C (bolting limits)

Maximum allowable pressure, MAP: 65.36 kgf/cm2 @ 21.1111 °C (bolting limits)External design pressure, Pe 5.6 kgf/cm2 @ 220 °CMaximum allowable external pressure,MAEP: 426.65 kgf/cm2 @ 220 °C

Corrosion allowance: Bore = 1.5 mm Flange = 0 mmBolt corrosion (root), Cbolt: 0 mmDesign MDMT: -28.89 °C No impact test performedRated MDMT: -48 °C Flange material is not normalized

Material is not produced to fine grainpracticePWHT is performed

Estimated weight: New = 11.02 kg corroded = 10.8 kg

Flange dimensions, new

flange OD A = 249 mmbolt circle C = 207 mmgasket OD = 167 mmgasket ID = 141 mmflange ID B = 129 mmthickness t = 38 mmbolting = 8- 0.75 in diahub thickness g1 = 10 mmhub thickness g0 = 10 mmlength e = 50 mmgasket factor m = 3.75seating stress y = 632.762 kgf/cm2

Gasket thickness T = 3.2 mm

gasket description

Flat metal, jacketedmineral fiber filledStainless steels andnickel-base alloys

Note: this flange is calculated as an integral type.

Determination of Flange MDMT

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UCS-66(b)(1)(b) has been applied.Flange is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0536)Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C

The rated flange MDMT is -48 °C

Flange calculations for Internal Pressure + Weight Only

Gasket details from facing sketch 1(a) or (b), Column II

Gasket width N = 13 mm

b0 = N/2 = 6.5 mm

Effective gasket seating width, b = 2.5*b01/2 = 6.37 mm

G = gasket OD - 2*b = 167 - 2*6.37 = 154.25 mm

hG = (C - G)/2 = (207 - 154.25)/2 = 26.37 mm

hD = R + g1/2 = 29 + 8.5/2 = 33.25 mm

hT = (R + g1 + hG)/2 = (29 + 8.5 + 26.37)/2 = 31.94 mm

Hp = 2*b*3.14*G*m*P= 0.01*2*6.37*3.14*154.25*3.75*3.5= 810.27 kgf

H = 0.785*G2*P= 0.01*0.785*154.252*3.5= 653.75 kgf

HD = 0.785*B2*P= 0.01*0.785*1322*3.5= 478.74 kgf

HT = H - HD= 653.75 - 478.74= 175.01 kgf

Wm1 = H + Hp= 653.75 + 810.27= 1,464.02 kgf

Wm2 = 3.14*b*G*y= 0.01*3.14*6.37*154.25*632.7621= 19,531.79 kgf

Required bolt area, Am = greater of Am1, Am2 = 11.1361 cm2

Am1 = Wm1/Sb = 1,464.02/1,753.911 = 0.8347 cm2

Am2 = Wm2/Sa = 19,531.79/1,753.911 = 11.1361 cm2

Total area for 8- 0.75 in dia bolts, corroded, Ab = 15.5871 cm2

24/50

W = (Am + Ab)*Sa/2= (11.1361 + 15.5871)*1,753.911/2= 23,435.07 kgf

MD = HD*hD = 478.74*0.0332 = 15.9 kgf-mMT = HT*hT = 175.01*0.0319 = 5.6 kgf-m

HG = Wm1 - H = 1,464.02 - 653.75 = 810.27 kgf

MG = HG*hG = 810.27*0.0264 = 21.4 kgf-m

Mo = MD + MT + MG = 15.9 + 5.6 + 21.4 = 42.9 kgf-m

Mg = W*hG = 23,435.07*0.0264 = 618 kgf-m

25/50

Hub and Flange Factors

h0 = (B*g0)1/2 = (132*8.5)1/2 = 33.49 mm

From FIG. 2-7.1, where K = A/B = 249/132 = 1.8863T = 1.55 Z = 1.7818 Y = 3.2268 U = 3.546

g1/g0 = 1

F = 0.9089 V = 0.5501 e = F/h0 = 0.2714

d = (U/V)*h0*g02= (3.546/0.5501)*3.3494*0.84992

= 15.595 cm3

Stresses at operating conditions - VIII-1 Appendix 2-7

f = 1

L = (t*e + 1)/T + t3/d= (3.8*0.2714 + 1)/1.55 + 3.83/15.595= 4.829

SH = f*Mo/(L*g12*B)

= 1e5*1*42.9/(4.829*8.52*132)= 93.123 kgf/cm2

SR = (1.33*t*e + 1)*Mo/(L*t2*B)= (1.33*38*0.0271 + 1)*1e5*42.9/(4.829*382*132)= 11.047 kgf/cm2

ST = Y*Mo/(t2*B) - Z*SR= 1e5*3.2268*42.9/(382*132) - 1.7818*11.047= 52.902 kgf/cm2

Allowable stress Sfo = 1,397.01 kgf/cm2

Allowable stress Sno = 1,397.01 kgf/cm2

ST does not exceed SfoSH does not exceed Min[ 1.5*Sfo, 2.5*Sno ] = 2,095.515 kgf/cm2

SR does not exceed Sfo0.5(SH + SR) = 52.085 kgf/cm2 does not exceed Sfo0.5(SH + ST) = 73.012 kgf/cm2 does not exceed Sfo

Stresses at gasket seating - VIII-1 Appendix 2-7

SH = f*Mg/(L*g12*B)

= 1e5*1*618/(4.829*8.52*132)= 1,342.349 kgf/cm2

SR = (1.33*t*e + 1)*Mg/(L*t2*B)= (1.33*38*0.0271 + 1)*1e5*618/(4.829*382*132)= 159.235 kgf/cm2

ST = Y*Mg/(t2*B) - Z*SR= 3.2268*1e5*618/(382*132) - 1.7818*159.235= 762.568 kgf/cm2

26/50

Allowable stress Sfa = 1,407.207 kgf/cm2

Allowable stress Sna = 1,407.207 kgf/cm2

ST does not exceed SfaSH does not exceed Min[ 1.5*Sfa, 2.5*Sna ] = 2,110.811 kgf/cm2

SR does not exceed Sfa0.5(SH + SR) = 750.792 kgf/cm2 does not exceed Sfa0.5(SH + ST) = 1,052.458 kgf/cm2 does not exceed Sfa

Flange rigidity per VIII-1 Appendix 2-14

J = 52.14*V*Mo/(L*E*g02*KI*h0)

= 1e5*52.14*0.5501*618/(4.829*20.52E+05*8.52*0.2*33.49)= 0.3697

The flange rigidity index J does not exceed 1; satisfactory.

Flange calculations for External Pressure + Weight Only per VIII-1, Appendix 2-11

Gasket details from facing sketch 1(a) or (b), Column II

Gasket width N = 13 mm

b0 = N/2 = 6.5 mm

Effective gasket seating width, b = 2.5*b01/2 = 6.37 mm

G = gasket OD - 2*b = 167 - 2*6.37 = 154.25 mm

hG = (C - G)/2 = (207 - 154.25)/2 = 26.37 mm

hD = R + g1/2 = 29 + 8.5/2 = 33.25 mm

hT = (R + g1 + hG)/2 = (29 + 8.5 + 26.37)/2 = 31.94 mm

Hp = 2*b*3.14*G*m*P= 0.01*2*6.37*3.14*154.25*3.75*5.6= 1,296.43 kgf

H = 0.785*G2*P= 0.01*0.785*154.252*5.6= 1,046 kgf

HD = 0.785*B2*P= 0.01*0.785*1322*5.6= 765.99 kgf

HT = H - HD= 1,046 - 765.99= 280.02 kgf

Wm1 = H + Hp= 1,046 + 1,296.43= 2,342.44 kgf

Wm2 = 3.14*b*G*y= 0.01*3.14*6.37*154.25*632.7621

27/50

= 19,531.79 kgf

Required bolt area, Am = greater of Am1, Am2 = 11.1361 cm2

Am1 = 0.785*G2*(Pm - Pr)/Sb = 0/1,753.911 = 0 cm2

Am2 = Wm2/Sa = 19,531.79/1,753.911 = 11.1361 cm2

Total area for 8- 0.75 in dia bolts, corroded, Ab = 15.5871 cm2

W = (Am2 + Ab)*Sa/2= (11.1361 + 15.5871)*1,753.911/2= 23,435.07 kgf

Mo = HD*(hD - hG) + HT*(hT - hG)= 765.99*(0.0332 - 0.0264) + 280.02*(0.0319 - 0.0264)= 6.8 kgf-m

Mg = W*hG = 23,435.07*0.0264 = 618 kgf-m

28/50

Hub and Flange Factors

h0 = (B*g0)1/2 = (132*8.5)1/2 = 33.49 mm

From FIG. 2-7.1, where K = A/B = 249/132 = 1.8863T = 1.55 Z = 1.7818 Y = 3.2268 U = 3.546

g1/g0 = 1

F = 0.9089 V = 0.5501 e = F/h0 = 0.2714

d = (U/V)*h0*g02= (3.546/0.5501)*3.3494*0.84992

= 15.595 cm3

Stresses at operating conditions - VIII-1 Appendix 2-7

f = 1

L = (t*e + 1)/T + t3/d= (3.8*0.2714 + 1)/1.55 + 3.83/15.595= 4.829

SH = f*Mo/(L*g12*B)

= 1e5*1*6.8/(4.829*8.52*132)= 14.823 kgf/cm2

SR = (1.33*t*e + 1)*Mo/(L*t2*B)= (1.33*38*0.0271 + 1)*1e5*6.8/(4.829*382*132)= 1.758 kgf/cm2

ST = Y*Mo/(t2*B) - Z*SR= 1e5*3.2268*6.8/(382*132) - 1.7818*1.758= 8.421 kgf/cm2

Allowable stress Sfo = 1,397.01 kgf/cm2

Allowable stress Sno = 1,397.01 kgf/cm2

ST does not exceed SfoSH does not exceed Min[ 1.5*Sfo, 2.5*Sno ] = 2,095.515 kgf/cm2

SR does not exceed Sfo0.5(SH + SR) = 8.291 kgf/cm2 does not exceed Sfo0.5(SH + ST) = 11.622 kgf/cm2 does not exceed Sfo

Stresses at gasket seating - VIII-1 Appendix 2-7

SH = f*Mg/(L*g12*B)

= 1e5*1*618/(4.829*8.52*132)= 1,342.349 kgf/cm2

SR = (1.33*t*e + 1)*Mg/(L*t2*B)= (1.33*38*0.0271 + 1)*1e5*618/(4.829*382*132)= 159.235 kgf/cm2

ST = Y*Mg/(t2*B) - Z*SR= 3.2268*1e5*618/(382*132) - 1.7818*159.235= 762.568 kgf/cm2

29/50

Allowable stress Sfa = 1,407.207 kgf/cm2

Allowable stress Sna = 1,407.207 kgf/cm2

ST does not exceed SfaSH does not exceed Min[ 1.5*Sfa, 2.5*Sna ] = 2,110.811 kgf/cm2

SR does not exceed Sfa0.5(SH + SR) = 750.792 kgf/cm2 does not exceed Sfa0.5(SH + ST) = 1,052.458 kgf/cm2 does not exceed Sfa

Flange rigidity per VIII-1 Appendix 2-14

J = 52.14*V*Mo/(L*E*g02*KI*h0)

= 1e5*52.14*0.5501*618/(4.829*20.52E+05*8.52*0.2*33.49)= 0.3697

The flange rigidity index J does not exceed 1; satisfactory.

Flange #6 - Flange hub


Component: Flange hubMaterial specification: SA-105 (II-D Metric p. 18, ln. 5)Material is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0193)


Static liquid head:


Corrosion allowance Inner C = 1.5 mm Outer C = 0 mm


Material is not produced to Fine Grain PracticePWHT is performed

Radiography: Longitudinal joint - Seamless No RTTop circumferential joint - N/ABottom circumferential joint - Full UW-11(a) Type 1


ID = 129 mmLengthLc

= 13 mm

t = 10 mm


t = P*R / (S*E - 0.60*P) + Corrosion= 3.5*66 / (1,397.01*1.00 - 0.60*3.5) + 1.5= 1.67 mm

30/50


P = S*E*t / (R + 0.60*t) - Ps= 1,397.01*1.00*8.5 / (66 + 0.60*8.5) - 0= 166.99 kg/cm2


P = S*E*t / (R + 0.60*t)= 1,407.21*1.00*10 / (64.5 + 0.60*10)= 199.6 kg/cm2


L / Do = 13 / 149 = 0.0872Do / t = 149 / 0.6 = 247.4039From table G: A = 0.005600From table CS-2Metric: B = 1,039.1024 kg/cm2

Pa = 4*B / (3*(Do / t))= 4*1,039.1 / (3*(149 / 0.6))= 5.6 kg/cm2


ta = t + Corrosion = 0.6 + 1.5 = 2.1mm


L / Do = 13 / 149 = 0.0872Do / t = 149 / 8.5 = 17.5318From table G: A = 0.100000From table CS-2Metric: B = 1,207.7426 kg/cm2

Pa = 4*B / (3*(Do / t))= 4*1,207.74 / (3*(149 / 8.5))= 91.85 kg/cm2

31/50

N9 Jacket (N9 Jacket)


tw(lower) = 40 mmLeg41 = 7 mmLeg43 = 9 mmhnew = 250 mm

Note: round inside edges per UG-76(c)

Location and OrientationLocated on: Sleeve CoverOrientation: 0°Distance to head center, R: 0 mmPasses through a Category A joint: No

NozzleAccess opening: NoMaterial specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40)Description: NPS 3 Sch 80 (XS) DN 80Inside diameter, new: 73.66 mmNominal wall thickness: 7.62 mmCorrosion allowance: 1.5 mmProjection available outside vessel, Lpr: 200 mmInternal projection, hnew: 250 mmLocal vessel minimum thickness: 40 mmLiquid static head included: 0 kgf/cm2

Longitudinal joint efficiency: 1

32/50

Reinforcement Calculations for Internal Pressure

UG-39 Area Calculation Summary(cm2)

For P = 5.6 kgf/cm2 @ 220 °C

UG-45Nozzle WallThicknessSummary

(mm)The nozzle

passes UG-45

Arequired

Aavailable A1 A2 A3 A5

Awelds treq tmin

This nozzle is exempt from areacalculations per UG-39(d) 6.3 6.67

UG-41 Weld Failure Path Analysis Summary

The nozzle is exempt from weld strength calculationsper UW-15(b)(1)

UW-16 Weld Sizing Summary

Weld description Required weldthroat size (mm)

Actual weldthroat size (mm) Status

Nozzle to shell fillet (Leg41) 4.28 4.9 weld size is adequate

Calculations for internal pressure 5.6 kgf/cm2 @ 220 °C

Fig UCS-66.2 general note (1) applies.

Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0216).

Nozzle UCS-66 governing thk: 6.67 mmNozzle rated MDMT: -105 °CParallel Limit of reinforcement per UG-40

LR = MAX(d, Rn + (tn - Cn) + (t - C))= MAX(76.66, 38.33 + (7.62 - 1.5) + (40 - 1.5))= 82.95 mm

Outer Normal Limit of reinforcement per UG-40

LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)= MIN(2.5*(40 - 1.5), 2.5*(7.62 - 1.5) + 0)= 15.3 mm

Inner Normal Limit of reinforcement per UG-40

LI = MIN(2.5*(t - C), 2.5*(ti - Cn - C))= MIN(2.5*(40 - 1.5), 2.5*(7.62 - 1.5 - 1.5))= 11.54 mm

33/50

Nozzle required thickness per UG-27(c)(1)

trn = P*Rn / (Sn*E - 0.6*P)= 5.6*38.33 / (1,203.2642*1 - 0.6*5.6)= 0.18 mm

Required thickness tr from UG-34

The static head of liquid has not been included in the total design load because the vessel is supported below theflange.

W = 0.785*G2*P + 2*b*3.14*G*m*P= 0.785*154.252*5.6/100 + 2*6.37*3.14*154.25*3.75*5.6/1005.6/100= 2,342.44 kgf

tr = d*Sqr(2*(C*P / (S*E) + 1.9*W*hg / (S*E*d3)))

= 154.25*Sqr(2*(0.3*5.6 / (1,397.0101*1) + 1.9*2,342.44*26.37 / (1,397.01 /100*1*154.253)))

= 12.89 mm

Gasket seatingtr = d*Sqr(2*1.9*W*hG / (S*E*d3))

= 154.25*Sqr(2*1.9*23,435.07*26.37 / (1,407.207 / 100*1*154.253))= 32.89 mm

Opening does not require reinforcement per UG-39(d)

UW-16(c) Weld Check

Fillet weld: tmin = lesser of 19 mm or tn or t = 6.12 mmtc(min) = lesser of 6 mm or 0.7*tmin = 4.28 mmtc(actual) = 0.7*Leg = 0.7*7 = 4.9 mm

The fillet weld size is satisfactory.

Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

UG-45 Nozzle Neck Thickness Check

ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion= 5.6*38.33 / (1,203.2642*1 - 0.6*5.6) + 1.5= 1.68 mm

ta = max[ ta UG-27 , ta UG-22 ]= max[ 1.68 , 0 ]= 1.68 mm

tb1 = 34.39 mm

34/50

tb1 = max[ tb1 , tb UG16 ]= max[ 34.39 , 3 ]= 34.39 mm

tb = min[ tb3 , tb1 ]= min[ 6.3 , 34.39 ]= 6.3 mm

tUG-45 = max[ ta , tb ]= max[ 1.68 , 6.3 ]= 6.3 mm

Available nozzle wall thickness new, tn = 0.875*7.62 = 6.67 mm

The nozzle neck thickness is adequate.

35/50

Reinforcement Calculations for External Pressure


For Pe = 3.5 kgf/cm2 @ 220 °C


(mm)The nozzle

passes UG-45

Arequired


Awelds treq tmin

This nozzle is exempt from areacalculations per UG-39(d) 6.3 6.67


Weld strength calculations are not required forexternal pressure





Calculations for external pressure 3.5 kgf/cm2 @ 220 °C

Parallel Limit of reinforcement per UG-40

LR = MAX(d, Rn + (tn - Cn) + (t - C))= MAX(76.66, 38.33 + (7.62 - 1.5) + (40 - 1.5))= 82.95 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)= MIN(2.5*(40 - 1.5), 2.5*(7.62 - 1.5) + 0)= 15.3 mm

Inner Normal Limit of reinforcement per UG-40

LI = MIN(2.5*(t - C), 2.5*(ti - Cn - C))= MIN(2.5*(40 - 1.5), 2.5*(7.62 - 1.5 - 1.5))= 11.54 mm

Nozzle required thickness per UG-28 trn = 0.66 mm

From UG-34 required thickness tr = 32.89 mm

Opening does not require reinforcement per UG-39(d)

36/50

UW-16(c) Weld Check





ta UG-28 = 2.16 mm

ta = max[ ta UG-28 , ta UG-22 ]= max[ 2.16 , 0 ]= 2.16 mm

tb2 = 34.39 mm


tb = min[ tb3 , tb2 ]= min[ 6.3 , 34.39 ]= 6.3 mm





L / Do = 200 / 88.9 = 2.2497Do / t = 88.9 / 0.66 = 134.5888From table G: A = 0.000368From table CS-2Metric: B = 353.2996 kg/cm2

Pa = 4*B / (3*(Do / t))= 4*353.3 / (3*(88.9 / 0.66))= 3.5 kg/cm2


ta = t + Corrosion = 0.66 + 1.5 = 2.16mm

37/50

N9 Sleeve (N9 Sleeve )

38/50

Sulphur Outlet 2" x 3" (Steam Jacketed) (N10)


tw(lower) = 9.27 mmLeg41 = 6 mm

Note: round inside edges per UG-76(c)

Location and OrientationLocated on: Bottom Dishend (InternalOrientation: 0°End of nozzle to datum line: -280 mmCalculated as hillside: NoDistance to head center, R: 0 mmPasses through a Category A joint: No

NozzleAccess opening: No

Material specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln.40)

Description: NPS 2 Sch 80 (XS) DN 50Inside diameter, new: 49.25 mmNominal wall thickness: 5.54 mmCorrosion allowance: 1.5 mmProjection available outside vessel, Lpr: 149.24 mmProjection available outside vessel to flange face, Lf: 154.77 mmLocal vessel minimum thickness: 8.11 mmLiquid static head included: 0 kgf/cm2

Longitudinal joint efficiency: 1



Blind included: NoRated MDMT: -48°C(UCS-66(b)(3): Coincident ratio = 0.1751)

39/50

(Flange rated MDMT = -105 °CBolts rated MDMT per Fig UCS-66 note (c) = -48 °C)Liquid static head: 0 kgf/cm2


40/50

Reinforcement Calculations for Internal Pressure


For P = 3.5 kgf/cm2 @ 220 °C


(mm)The nozzle

passes UG-45

Arequired


Awelds treq tmin

This nozzle is exempt from areacalculations per UG-36(c)(3)(a) 3.37 4.85


The nozzle is exempt from weld strength calculationsper UW-15(b)(2)





Calculations for internal pressure 3.5 kgf/cm2 @ 220 °C

Fig UCS-66.2 general note (1) applies.

Nozzle is impact test exempt per UCS-66(d) (NPS 4 or smaller pipe).External nozzle loadings per UG-22 govern the coincident ratio used.

Nozzle UCS-66 governing thk: 4.85 mmNozzle rated MDMT: -105 °CParallel Limit of reinforcement per UG-40

LR = MAX(d, Rn + (tn - Cn) + (t - C))= MAX(52.25, 26.13 + (5.54 - 1.5) + (8.11 - 3))= 52.25 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)= MIN(2.5*(8.11 - 3), 2.5*(5.54 - 1.5) + 0)= 10.09 mm

Nozzle required thickness per UG-27(c)(1)

trn = P*Rn / (Sn*E - 0.6*P)= 3.5*26.13 / (1,203.2642*1 - 0.6*3.5)= 0.0762 mm

41/50

Required thickness tr from UG-37(a)(c)

tr = P*K1*D / (2*S*E - 0.2*P)= 3.5*0.8896*257.51 / (2*1,203.2642*1 - 0.2*3.5)= 0.33 mm

This opening does not require reinforcement per UG-36(c)(3)(a)

UW-16(c) Weld Check





Interpretation VIII-1-83-66 has been applied.

ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion= 3.5*26.13 / (1,203.2642*1 - 0.6*3.5) + 1.5= 1.58 mm

ta UG-22 = 2.05 mm

ta = max[ ta UG-27 , ta UG-22 ]= max[ 1.58 , 2.05 ]= 2.05 mm

tb1 = 3.37 mm


tb = min[ tb3 , tb1 ]= min[ 4.92 , 3.37 ]= 3.37 mm



42/50


43/50

Applied Loads

Radial load: Pr = 314 kgfCircumferential moment: M1 = 8 kgf-mCircumferential shear: V2 = 314 kgfLongitudinal moment: M2 = 16 kgf-mLongitudinal shear: V1 = 314 kgfTorsion moment: Mt = 18 kgf-mInternal pressure: P = 3.5 kgf/cm2

Head yield stress: Sy = 2,080.22 kgf/cm2

Maximum stresses due to the applied loads at the nozzle OD (includes pressure)

Mean dish radius Rm = 234.26 mm

U = ro / Sqr(Rm*t) = 0.872Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82)

Local pressure stress = I*P*Ri / (2*t) =79.376 kgf/cm2

Maximum combined stress (PL+P

b+Q) = -1,527.77 kgf/cm2

Allowable combined stress (PL+P

b+Q) = +-3*S = +-3,609.79 kgf/cm2

The maximum combined stress (PL+P

b+Q) is within allowable limits.

Maximum local primary membrane stress (PL) = -177.03 kgf/cm2

Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2

The maximum local primary membrane stress (PL) is within allowable limits.

44/50

Stresses at the nozzle OD per WRC Bulletin 107

Figure value Au Al Bu Bl Cu Cl Du Dl

SR-2* 0.0778 -93.578 -93.578 -93.578 -93.578 -93.578 -93.578 -93.578 -93.578

SR-2 0.0426 -307.452 307.452 -307.452 307.452 -307.452 307.452 -307.452 307.452

SR-3* 0.0919 0 0 0 0 -81.415 -81.415 81.415 81.415

SR-3 0.0968 0 0 0 0 -514.576 514.576 514.576 -514.576

SR-3* 0.0919 -162.831 -162.831 162.831 162.831 0 0 0 0

SR-3 0.0968 -1,029.082 1,029.082 1,029.082 -1,029.082 0 0 0 0

Pressure stress* 79.376 79.376 79.376 79.376 79.376 79.376 79.376 79.376

Total Ox stress -1,513.567 1,159.501 870.259 -573.001 -917.646 726.411 274.338 -139.911

Membrane Oxstress* -177.033 -177.033 148.629 148.629 -95.617 -95.617 67.213 67.213

SR-2* 0.024 -28.896 -28.896 -28.896 -28.896 -28.896 -28.896 -28.896 -28.896

SR-2 0.0128 -92.383 92.383 -92.383 92.383 -92.383 92.383 -92.383 92.383

SR-3* 0.0277 0 0 0 0 -24.537 -24.537 24.537 24.537

SR-3 0.0293 0 0 0 0 -155.73 155.73 155.73 -155.73

SR-3* 0.0277 -49.074 -49.074 49.074 49.074 0 0 0 0

SR-3 0.0293 -311.53 311.53 311.53 -311.53 0 0 0 0

Pressure stress* 79.376 79.376 79.376 79.376 79.376 79.376 79.376 79.376

Total Oy stress -402.507 405.319 318.701 -119.592 -222.17 274.056 138.364 11.671

Membrane Oystress* 1.406 1.406 99.555 99.555 25.943 25.943 75.017 75.017

Shear from Mt 61.659 61.659 61.659 61.659 61.659 61.659 61.659 61.659

Shear from V1 0 0 0 0 -64.893 -64.893 64.893 64.893

Shear from V2 64.893 64.893 -64.893 -64.893 0 0 0 0

Total Shear stress 126.552 126.552 -3.234 -3.234 -3.234 -3.234 126.552 126.552

Combined stress(PL+Pb+Q) -1,527.769 1,180.172 870.259 -573.001 -917.646 726.411 349.988 295.008

Notes: (1) * denotes primary stress.

(2) The nozzle is assumed to be a rigid (solid) attachment.

Longitudinal stress in the nozzle wall due to internal pressure + external loads (hot shut down conditiongoverns)

σn (Pm) = ABS(Pr / (π*(Ro2 - Ri

2))) + M*Ro / I= ABS(314 / (π*(30.162 - 26.132))*100) + 17,888.5*30.16 / 284,127.8*100= 233.896 kgf/cm2

The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + externalloads is acceptable ( ≤ S = 1,203.264 kgf/cm2)

Longitudinal stress in the nozzle wall due to external pressure + external loads

σn (Pm) = ABS(P*Ri / (2*tn) - Pr / (π*(Ro2 - Ri

2)) - M*Ro / I)= ABS(-5.6*26.13 / (2*3.34) - 314 / (π*(30.162 - 26.132)) - 17,888.5*30.16 / 284,127.8)= 255.773 kgf/cm2

The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to external pressure + externalloads is acceptable ( ≤ S = 1,203.264 kgf/cm2)

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Shear stress in the nozzle wall due to external loads

σshear = (VL2 + Vc

2)0.5 / (π*Ri*tn)*100= (3142 + 3142)0.5 / (π*26.13*4.04)*100= 134.047 kgf/cm2

σtorsion = Mt / (2*π*Ri2*tn)*100000

= 18 / (2*π*26.132*4.04)*100000= 103.986 kgf/cm2

σtotal = σshear + σtorsion= 134.047 + 103.986= 238.033 kgf/cm2

UG-45: The total combined shear stress (238.033 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 =842.285 kgf/cm2)

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Reinforcement Calculations for External Pressure


For Pe = 5.6 kgf/cm2 @ 220 °C


(mm)The nozzle

passes UG-45

Arequired


Awelds treq tmin

This nozzle is exempt from areacalculations per UG-36(c)(3)(a) 3.59 4.85


Weld strength calculations are not required forexternal pressure





Calculations for external pressure 5.6 kgf/cm2 @ 220 °C

Parallel Limit of reinforcement per UG-40

LR = MAX(d, Rn + (tn - Cn) + (t - C))= MAX(52.25, 26.13 + (5.54 - 1.5) + (8.11 - 3))= 52.25 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)= MIN(2.5*(8.11 - 3), 2.5*(5.54 - 1.5) + 0)= 10.09 mm

Nozzle required thickness per UG-28 trn = 0.57 mm

From UG-37(d)(1) required thickness tr = 1.74 mm

This opening does not require reinforcement per UG-36(c)(3)(a)

UW-16(c) Weld Check



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Interpretation VIII-1-83-66 has been applied.

ta UG-28 = 2.07 mm

ta UG-22 = 2.12 mm

ta = max[ ta UG-28 , ta UG-22 ]= max[ 2.07 , 2.12 ]= 2.12 mm

tb2 = 3.59 mm


tb = min[ tb3 , tb2 ]= min[ 4.92 , 3.59 ]= 3.59 mm






Pa = 4*B / (3*(Do / t))= 4*442.99 / (3*(60.33 / 0.57))= 5.6 kg/cm2


ta = t + Corrosion = 0.57 + 1.5 = 2.07mm

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Sleeve Cover


Component: Bolted CoverAttached to: Flange #6Material specification: SA-105 (II-D Metric p. 18, ln. 5)Bolted cover is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.0696).


Static liquid head:


Corrosion allowance: Inner C = 1.5 mm Outer C = 0 mm



Radiography: Category A joints - Seamless No RT

Estimated weight: New = 13.3 kg corr = 12.8 kg

Head diameter, d = 154.25 mmCover thickness, t = 40 mmNote: The quantity under the square root sign has been doubled per UG-39(d)

Design thickness, (at 220 °C) UG-34 (c)(2), flange operating

t = d*Sqr(2*(C*P / (S*E) + 1.9*W*hG / (S*E*d3))) + Corrosion= 154.25*Sqr(2*(0.3*3.5 / (1,397.01*1) + 100*1.9*1,464.02*26.37 / (1,397.01*1*154.253))) + 1.5= 11.69 mm

Design thickness, (at 21.11 °C) UG-34 (c)(2), gasket seating

t = d*Sqr(2*1.9*W*hG / (S*E*d3)) + Corrosion= 10*154.25*Sqr(2*1.9*23,435.07*26.37 / (1,407.207*1*154.253)) + 1.5= 34.39 mm

Maximum allowable working pressure, (at 220 °C )

P = (S*E / (2*C))*(t / d)2 - 1.9*W*hG / (d3*C) - Ps= (1,397.01*1 / (2*0.3))*(38.5 / 154.25)2 - 1.9*100*20,894.19*26.37 / (154.253*0.3) - 0= 49.95 kgf/cm2

Maximum allowable pressure, (At 21.11 °C )

P = (S*E / (2*C))*(t / d)2 - 1.9*W*hG / (d3*C)= (1,407.207*1 / (2*0.3))*(40 / 154.25)2 - 1.9*100*22,719.95*26.37 / (154.253*0.3)= 54.32 kgf/cm2

Design thickness for external pressure, (at 220 °C) U-2(g)

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t = d*Sqr(2*C*Pa / (S*E)) + Corrosion= 154.25*Sqr(2*0.3*5.6 / (1,397.01*1)) + 1.5= 9.07 mm

Maximum allowable external pressure, (At 220 °C ) U-2(g)

Pa = (S*E / (2*C))*(t / d)2

= (1,397.01*1 / (2*0.3))*(38.5 / 154.25)2

= 145.03 kgf/cm2

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vd-sru-v-004-100-rev a

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