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Head Types Demo

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Design of Shell under Internal pressure

Always Edit this


lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 23.62 inch 600 mm


Sump Dia (d) = 12.75 inch 323.85 mm
Design Pressure = 500 psi 3.448 bar
Design Temp = 450 deg F 230 deg C
Corrosion allowance = 0.125 inch 3.175 mm
Service = Lethal
Allowable stresses
hence, S = 15000 psi 103.4214 N/mm2

1) Lethal service

Element Circum Long


Shell 0.402 0.217
Ellipsoidal head 0.395
Hemispherical head 0.198
Sump shell 0.217 0.117
Torispherical head 0.307 M= 1.44
Joint Efficency
Radiography Type 1 Type 2
Full 1 0.9
Spot 0.85 0.8
None 0.7 0.65
Design of Shell under Internal pressure
Always Edit this
lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 23.62 inch 600 mm


Sump Dia (d) = 12.75 inch 323.85 mm
Design Pressure = 500 psi 3.448 bar
Design Temp = 450 deg F 230 deg C
Corrosion allowance = 0.125 inch 3.175 mm
Service = General
Allowable stresses
hence, S = 15000 psi 103.4214 N/mm2

1) Lethal service

Element Circum Long


Shell 0.402 0.244
Ellipsoidal head 0.395
Hemispherical head 0.198
Sump shell 0.256 0.162
Torispherical head 0.361 M= 1.44
Joint Efficency
Radiography Type 1 Type 2
Full 1 0.9
Spot 0.85 0.8
None 0.7 0.65
Design of Shell under Internal pressure
Always Edit this
lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 23.62 inch 600 mm


Sump Dia (d) = 12.75 inch 323.85 mm
Design Pressure = 500 psi 3.448 bar
Design Temp = 450 deg F 230 deg C
Corrosion allowance = 0.125 inch 3.175 mm
Service = General
Allowable stresses
hence, S = 15000 psi 103.4214 N/mm2

1) Lethal service

Element Circum Long


Shell 0.474 0.300
Ellipsoidal head 0.465
Hemispherical head 0.283
Sump shell 0.256 0.162
Torispherical head 0.361 M= 1.44
Joint Efficency
Radiography Type 1 Type 2
Full 1 0.9
Spot 0.85 0.8
None 0.7 0.65
Design of Shell under Internal pressure
Always Edit this
lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 23.62 inch 600 mm


Sump Dia (d) = 12.75 inch 323.85 mm
Design Pressure = 500 psi 3.448 bar
Design Temp = 450 deg F 230 deg C
Corrosion allowance = 0.125 inch 3.175 mm
Service = Steam
Allowable stresses
hence, S = 15000 psi 103.4214 N/mm2

1) Lethal service

Element Circum Long


Shell 0.402 0.217
Ellipsoidal head 0.395
Hemispherical head 0.198
Sump shell 0.217 0.117
Torispherical head 0.307 M= 1.44
Joint Efficency
Radiography Type 1 Type 2
Full 1 0.9
Spot 0.85 0.8
None 0.7 0.65
Design of Shell under Internal pressure
Always Edit this
lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 23.62 inch 600 mm


Sump Dia (d) = 12.75 inch 323.85 mm
Design Pressure = 500 psi 3.448 bar
Design Temp = 450 deg F 230 deg C
Corrosion allowance = 0.125 inch 3.175 mm
Service = General
Allowable stresses
hence, S = 15000 psi 103.4214 N/mm2

1) Lethal service

Element Circum Long


Shell 0.402 0.244
Ellipsoidal head 0.395
Hemispherical head 0.198
Sump shell 0.217 0.162
Torispherical head 0.307 M= 1.44
Joint Efficency
Radiography Type 1 Type 2
Full 1 0.9
Spot 0.85 0.8
None 0.7 0.65
Design of Shell under Internal pressure
Always Edit this
lb/inch2 N/mm2

Inputs Vessel Inside Diameter (D) = 78.74 inch 2000


External Pressure 14.5 psi 0.1
Design Pressure = 500 psi 3.448
Design Temp = 450 deg F 230
Length of shell = 236.22 inch 6000
Corrosion allowance = 0.125 inch 3.18
Service = General
Allowable stresses
hence, S = 15000 psi 103.4214
Modulus Elasticity = psi
1) Lethal service

Thk mm Element Circum Long Value Value


For Torispherical
34.0 Shell 1.339 0.724 D/2h L/r
59.2 6% Torispherical head 2.331 M= 1.77 16.66667
51.5 10% Torispherical head 2.028 M= 1.54 10
For Ellipsoidal
61.2 3:1 Ellipsoidal head 2.410 K= 1.83 3
33.4 2:1 Ellipsoidal head 1.317 K= 1 2
16.7 Hemispherical head 0.658
For Hemispherical

Design of Shell under External pressure

Compute Do/t value = 81.418394 inch


lways Edit this
Joint Efficency
Radiography Type 1 Type 2
mm Full 1 0.9
N/mm2 Spot 0.85 0.8
N/mm2 None 0.7 0.65
deg C
mm
mm

N/mm2

PLM
For Torispherical t=
(2SE - 0.2P)

PDK
For Ellipsoidal t=
(2SE - 0.2P)

PR
For Hemispherical t=
(2SE - 0.2P)

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