asme b31.3 pipe thickness for 10 inch vent stack
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10 INCH S.S PIPE THICK CALCULATIONASME B31.3 - 304 Pressure Design of Components I/PASME 304.1 Straight Pipetm = t+ctm = > Minimum Thicknesst=> Calculated thickness : P.D/(SA.E + P.Y)P=> Design Pressure in Bar 3.5 BarD=> Outer Diameter of Pipe in mm 273 mmAllowable Stress (SA) as per ASME B31.3 table A-1for TP 304 :20 KSI 20000 PSI 1406 in Kg/cm2E=> Quality factor from ASME B31.3 Table A-1A or A-1B 1Y=> Coefficient as per table ASME B31.3/ 304.1.1 0.4c=> Sum of Mechanical, Corossion and errosion allowances in mm: 0 mm
P (Bar) O.D (mm) SA (Kg/cm2) E Y t tm = t+c (mm)3.5 273 1406 1 0.4 0.339455733978 0.339455733978
SELECTED PIPE THICKNESS 9.27 MM
6 INCH S.S PIPE THICK CALCULATIONASME B31.3 - 304 Pressure Design of Components I/PASME 304.1 Straight Pipetm = t+ctm = > Minimum Thicknesst=> Calculated thickness : P.D/(SA.E + P.Y)P=> Design Pressure in Bar 3.5 BarD=> Outer Diameter of Pipe in mm 168.3 mmAllowable Stress (SA) as per ASME B31.3 table A-1for TP 304 :20 KSI 20000 PSI 1406 in Kg/cm2E=> Quality factor from ASME B31.3 Table A-1A or A-1B 1Y=> Coefficient as per table ASME B31.3/ 304.1.1 0.4c=> Sum of Mechanical, Corossion and errosion allowances in mm: 0 mm
P (Bar) O.D (mm) SA (Kg/cm2) E Y t tm = t+c (mm)3.5 168.3 1406 1 0.4 0.209268864573 0.209268864573
SELECTED PIPE THICKNESS 3.40 MM
2 INCH S.S PIPE THICK CALCULATIONASME B31.3 - 304 Pressure Design of Components I/PASME 304.1 Straight Pipetm = t+ctm = > Minimum Thicknesst=> Calculated thickness : P.D/(SA.E + P.Y)P=> Design Pressure in Bar 3.5 BarD=> Outer Diameter of Pipe in mm 60.3 mmAllowable Stress (SA) as per ASME B31.3 table A-1for TP 304 :20 KSI 20000 PSI 1406 in Kg/cm2E=> Quality factor from ASME B31.3 Table A-1A or A-1B 1Y=> Coefficient as per table ASME B31.3/ 304.1.1 0.4c=> Sum of Mechanical, Corossion and errosion allowances in mm: 0 mm
P (Bar) O.D (mm) SA (Kg/cm2) E Y t tm = t+c (mm)3.5 60.3 1406 1 0.4 0.074978684098 0.074978684098
SELECTED PIPE THICKNESS 2.77 MM
REINFORCEMENT CALCULATION FOR 10"X 6".ASME B31.3 - 304.3.3 I/PO.D=> Outer Diameter of Header Pipe in mm 273 mmo.d=> Outer Diameter of Branch Pipe in mm 168.3 mmC=> Sum of Mechanical, Corossion and errosion allowances in mm: 0 mmOriginal thickness of header pipe 9.27 mmOriginal thickness of branch pipe 3.4 mm
0.339 mm
0.2092 mm
8.11125 mm
2.975 mmβ = 90 degree
162.35 mm
92.26125 mm
110.0733
172.330213125
112.17047625
A4 = 2(1/2)*L4 20.278125
20.278125A2+A3+A4 304.778814375
RESULT NO R.F PAD TO BE PROVIDED.
th = > Calculated thickness of header pipe
tb = > Calculated thickness of branch pipe
Th = Original Thickness of Header X (1-12.5%)
Tb = Original Thickness of Branch X (1-12.5%)
d1 = O.D - 2(Tb-C)/ Sinβ
d2 = (Tb-C) + (Th-C) + d1/2
A1 = th*d1*(2-Sinβ) mm2
A2 = (2d2-d1)*(Th-th-C) mm2
A3 = 2*L4*(Tb-tb-c) / Sinβ mm2
mm2
L4 = 2.5*(Th-C)
A2+A3+A4>A1
REINFORCEMENT CALCULATION FOR 10"X 2".ASME B31.3 - 304.3.3 I/PO.D=> Outer Diameter of Header Pipe in mm 273 mmo.d=> Outer Diameter of Branch Pipe in mm 60.3C=> Sum of Mechanical, Corossion and errosion allowances in mm: 0 mmOriginal thickness of header pipe 4.19 mmOriginal thickness of branch pipe 2.77 mm
0.339 mm
0.074 mm
3.66625 mm
2.42375 mmβ = 90 degree
55.4525 mm
33.81625 mm
37.596795
40.525905
43.0738546875
A4 = 2(1/2)*L4 9.165625
9.165625 mm
A2+A3+A4 92.7653846875R.F Pad is required
RESULT NO R.F PAD TO BE PROVIDED.
th = > Calculated thickness of header pipe
tb = > Calculated thickness of branch pipe
Th = Original Thickness of Header X (1-12.5%)
Tb = Original Thickness of Branch X (1-12.5%)
d1 = O.D - 2(Tb-C)/ Sinβ
d2 = (Tb-C) + (Th-C) + d1/2
A1 = th*d1*(2-Sinβ) mm2
A2 = (2d2-d1)*(Th-th-C) mm2
A3 = 2*L4*(Tb-tb-c) / Sinβ mm2
mm2
L4 = 2.5*(Th-C)
A2+A3+A4>A1