Reference: Thomas J.C, Eun, ASME Section VIII, B31.3, and Section IX-Design and Construction Guidebook, Keyano College, 2005
Table Principle Concept of Hydrotest and Pneumatic Test in ASME Sec.VIII & I/B31.3
a. Codes
b. Hydrotest Pressure
c. Pneumatic Test Pressure
d. Main Purpose
e. Remark
1a. Sec.VIII, Div. 1 General
1b. 1.3 x MAWP x ST/S
1c. 1.1 x MAWP
1d. Pressure Test
1e. Detected by Deformation (Strain) and Cracking (Fracture) as well as leaking.
2a. Sec.VIII, Div. 1 Low Temperature, ULT-99
2b. 1.4 x MAWP x ST/S
2d. Pressure Test
3a. Sec.VIII, Div. 1 Cast Iron, UCI-101
3b. 2.0 x MAWP for MAWP>30psi, 2.5 x MAWP (bur max.60psi) for MAWP<30psi
3d. Pressure Test
3e. STD hydro Test
4a. Sec.VIII, Div. 1 Cast Iron, UCI-101
4b. PB/6/67 x (SMTS)/ (avg. T.S of test specimen)
4d. Pressure Test
4e. Hydrotest to Destruction
5a. Sec.VIII, Div. 2
5b. 1.25 x D.P x ST/S
5c. 1.15 x D.P
5d. Pressure Test
6a. Sec.VIII, Div. 3
6b. 1.25 x D.P x ST/S
6d. Pressure Test
7a. Sec.I
7b. 1.5 x D.P
7d. Pressure Test
8a. B31.3
8b. 1.5 x D.P x ST/S
8c. 1.1 x D.P
8d. Leak Test
8e. Detected by Leaking mainly at flanges gasket face, welds, fitting, bend parts, etc.
Abbreviations: D.P = design pressure, MAWP = maximum allowable working pressure, ST = stress value at test temperature, S = stress value at design temperature, PR (Test Pressure) = MAWP at operating temperatures listed in Table UCI-23, PB = destruction test pressure, SMTS = minimum specified tensile strength
Reference: Thomas J.C, Eun, ASME Section VIII, B31.3, and Section IX-Design and Construction Guidebook, Keyano College, 2005
Table Principle Concept of Hydrotest and Pneumatic Test in ASME Sec.VIII & I/B31.3
a. Codes
b. Hydrotest Pressure
c. Pneumatic Test Pressure
d. Main Purpose
e. Remark
1a. Sec.VIII, Div. 1 General
1b. 1.3 x MAWP x ST/S
1c. 1.1 x MAWP
1d. Pressure Test
1e. Detected by Deformation (Strain) and Cracking (Fracture) as well as leaking.
2a. Sec.VIII, Div. 1 Low Temperature, ULT-99
2b. 1.4 x MAWP x ST/S
2d. Pressure Test
3a. Sec.VIII, Div. 1 Cast Iron, UCI-101
3b. 2.0 x MAWP for MAWP>30psi, 2.5 x MAWP (bur max.60psi) for MAWP<30psi
3d. Pressure Test
3e. STD hydro Test
4a. Sec.VIII, Div. 1 Cast Iron, UCI-101
4b. PB/6/67 x (SMTS)/ (avg. T.S of test specimen)
4d. Pressure Test
4e. Hydrotest to Destruction
5a. Sec.VIII, Div. 2
5b. 1.25 x D.P x ST/S
5c. 1.15 x D.P
5d. Pressure Test
6a. Sec.VIII, Div. 3
6b. 1.25 x D.P x ST/S
6d. Pressure Test
7a. Sec.I
7b. 1.5 x D.P
7d. Pressure Test
8a. B31.3
8b. 1.5 x D.P x ST/S
8c. 1.1 x D.P
8d. Leak Test
8e. Detected by Leaking mainly at flanges gasket face, welds, fitting, bend parts, etc.
Abbreviations: D.P = design pressure, MAWP = maximum allowable working pressure, ST = stress value at test temperature, S = stress value at design temperature, PR (Test Pressure) = MAWP at operating temperatures listed in Table UCI-23, PB = destruction test pressure, SMTS = minimum specified tensile strength
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