REINFORCEMENT CALCULATIONS FOR NOZZLE (N1)

Nozzle Size: 3/4” Sch. 80

OD ID Thick
ness
26.70 18.88 3.91
Allowable stress of shell Sv: 138 MPa
Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 137.50 MPa
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.49 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 2.42 mm
Finished nozzle opening d: 21.86 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t h: 16.05 mm
Weld size on outward projection WL1: 3.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 3.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2 : 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP)) +c1+c2
tr = 3.66 mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.128 mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 106.79 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 107.90 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 126.80 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 97.98 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 23.71 mm²
A2 = 23.71 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 66.41 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 7.72 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 7.72 mm2
A4 = 15.45 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 232.31 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N2)

OD ID Thick
ness
88.60 73.40 7.60

Allowable stress of shell Sv: 138 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 138 MPa (Not Applicable)
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.95 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 5.65 mm
Finished nozzle opening d: 77.30 mm

Thickness of Reinforcing Element te: 0.00 mm

h= (lesser of 2.5tn ,2.5t)+t h: 24.125 mm
Weld size on outward projection WL1: 5.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 5.00 mm

Stress ratio Sn/ Sv= fr1: 0.855

Stress ratio Lesser of Sn or Sp/ Sv =fr2 : 0.855
Stress ratio Sp/ Sv= fr3 : 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP)) +c1+c2
tr = 3.66mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.425mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 342.276 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 483.425 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 483.25 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 223.36 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 126.20 mm²
A2 = 126.20 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 233.08 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 21.45 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 21.45 mm2
A4 = 42.90 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 885.25mm2
Aava > Areq
Max. dia of opening as per fig. PG32
K = Min( 0.99, PD/1.82St) PG-32.1.1
d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N3)

Nozzle Size: 3/4” Sch. 80

OD ID Thick
ness
26.70 18.88 3.91
Allowable stress of shell Sv: 138 MPa
Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 137.50 MPa
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.49 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 2.42 mm
Finished nozzle opening d: 21.86 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t h: 16.05 mm
Weld size on outward projection WL1: 3.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 3.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2 : 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP)) +c1+c2
tr = 3.66 mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.128 mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 106.79 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 107.90 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 126.80 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 97.98 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 23.71 mm²
A2 = 23.71 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 66.41 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 7.72 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 7.72 mm2
A4 = 15.45 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 232.31 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N4)

OD ID Thick
ness
88.60 73.40 7.60

Allowable stress of shell Sv: 138 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 138 MPa (Not Applicable)
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.95 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 5.65 mm
Finished nozzle opening d: 77.30 mm

Thickness of Reinforcing Element te: 0.00 mm

h= (lesser of 2.5tn ,2.5t)+t h: 24.125 mm
Weld size on outward projection WL1: 5.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 5.00 mm

Stress ratio Sn/ Sv= fr1: 0.855

Stress ratio Lesser of Sn or Sp/ Sv =fr2 : 0.855
Stress ratio Sp/ Sv= fr3 : 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP)) +c1+c2
tr = 3.66mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.425mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 342.276 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 483.425 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 483.25 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 223.36 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 126.20 mm²
A2 = 126.20 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 233.08 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 21.45 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 21.45 mm2
A4 = 42.90 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 885.25mm2
Aava > Areq
Max. dia of opening as per fig. PG32
K = Min( 0.99, PD/1.82St) PG-32.1.1
d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N5)

Nozzle Size: 2” Sch. 80

OD ID Thick
ness
60.30 49.18 5.56
Allowable stress of shell Sv: 138.0 MPa
Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 138.0 MPa (Not Applicable)
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.70 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 3.87 mm
Finished nozzle opening d: 52.57 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t : 19.675 mm
Weld size on outward projection WL1: 4.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 4.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2: 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP))
tr = 3.66 mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.289 mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 220.73 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 284.22 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 284.22 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 153.08 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 59.24mm²
A2 = 59.24 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 130.20 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 13.73 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 13.73 mm2
A4 = 27.46 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 501.12 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N6)

Nozzle Size: 6” Sch. 80

OD ID Thick
ness
168.3 146.3 10.97

Allowable stress of shell Sv: 138 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 137.50 MPa
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 1.37 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 8.60 mm
Finished nozzle opening d: 151.10 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t h: 31.50 mm
Weld size on outward projection WL1: 8.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 8.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2: 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP))
tr = 3.66 mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.807
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 615 m.97m²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 848.92 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 848.92 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 333.15 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 286.50 mm²
A2 = 286.50 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 463.23 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 54.94 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 54.94 mm2
A4 = 109.85 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 1708.5 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N7)

Nozzle Size: 2” Sch. 80

OD ID Thick
ness
60.30 49.18 5.56

Allowable stress of shell Sv: 138.0 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 138.0 MPa (Not Applicable)
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.70 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 3.87 mm
Finished nozzle opening d: 52.57 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t : 19.675 mm
Weld size on outward projection WL1: 4.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 4.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2: 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = (PD/(2SE + 2yP))
tr = 3.66 mm
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.289 mm
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 220.73 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 284.22 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 284.22 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 153.08 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 59.24mm²
A2 = 59.24 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 130.20 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 13.73 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 13.73 mm2
A4 = 27.46 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 501.12 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N8)

Nozzle Size: 1” Sch. 80

OD ID Thic
kness
33.40 24.30 4.55

Allowable stress of shell Sv: 138 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 137.50 MPa
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.57 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 2.98 mm
Finished nozzle opening d: 27.44 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t : 17.45 mm
Weld size on outward projection WL1: 3.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 3.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2: 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = 7.84
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.160
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 122.24 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 136.18 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 136.18 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 120.55 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 35.92 mm²
A2 = 35.92 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 88.92 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 7.72 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 7.72 mm2
A4 = 15.45 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 276.47 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm

REINFORCEMENT CALCULATIONS FOR NOZZLE (N9)

Nozzle Size: 1” Sch. 80

OD ID Thic
kness
33.40 24.30 4.55

Allowable stress of shell Sv: 138 MPa

Allowable stress of nozzle Sn: 118.0 MPa
Allowable Stress of Reinforcing element Sp: 137.50 MPa
Temperature coefficient y: 0.40
Outside diameter of shell/head D: 650.24 mm
Factor for pressure variation compensation F: 1.00 ( From Fig PG-33)
Shell/head thickness t: 10.00mm
Manufacturing allowance on thickness MA: 0.57 mm @12.5%
Assumed nozzle thickness with manufacturing allowance tn: 2.98 mm
Finished nozzle opening d: 27.44 mm
Thickness of Reinforcing Element te: 0.00 mm
OD of Reinforcing Element Dp: 0.00 mm
h= (lesser of 2.5tn ,2.5t)+t : 17.45 mm
Weld size on outward projection WL1: 3.00 mm
Weld size on Repad WL2: 0.00 mm
Weld size on Inside projection WL3: 3.00 mm
Stress ratio Sn/ Sv= fr1: 0.855
Stress ratio Lesser of Sn or Sp/ Sv=fr2: 0.855
Stress ratio Sp/ Sv= fr3: 1.00

DESIGN CALCULATIONS:
Minimum required thickness for reinforcement consideration of shell/Head:
tr = 7.84
Minimum required thickness for reinforcement consideration of nozzle:
trn = (PDn/(2SnE + 2yP))
trn = 0.160
For nozzle wall abutting the vessel wall:
Area required A = (d+2tn) trF
A = 122.24 mm²
Area available in shell:
Al = (d-2tn)(t-trF)
A1= 136.18 mm²
A1= 2t(t-trF)
A1= 126.80 mm²
A1 = 136.18 mm2 (maximum is taken)
Area available in nozzle projecting outward:
A2 = 2(tn-trn)(2.5tfr1)
A2 = 120.55 mm²
A2 = 2(tn-trn)(2.5tn+te)fr1
A2 = 35.92 mm²
A2 = 35.92 mm2 (minimum is taken)
Area available in nozzle projecting inward:
A3 = 2tnfr1h
A3 = 88.92 mm2
Area available in welds:
A4 = A41 + A42 + A43
A41= (WL1)2fr2
= 7.72 mm2
A42= (WL2)2fr3
= 00.00 mm2
A43= (WL3)2fr1
= 7.72 mm2
A4 = 15.45 mm2
Area available in pad:
A5 = (Dp-d-2tn)tefr3
A5 = 00.00 mm2
Total Area Available:
Aava = 276.47 mm2
Aava > Areq
Max. dia of opening as per fig. PG32 d1 = 8.08 [Dt(1-k)]1/3 = 177.00 mm
Or 0.25 times the diameter of shell/head d2 = 233.00 mm
Max. allowable dia. of opening = Min. of [d2 and [Max. of 60mm and d1]] = 177 mm