Section 10 Hydraulic tests
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022 - Part 5 Main and Auxiliary Machinery - Chapter 11 Other Pressure Vessels - Section 10 Hydraulic tests

Section 10 Hydraulic tests

Parent topic: Chapter 11 Other Pressure Vessels

10.1 General

10.1.1 Pressure vessels covered by this Chapter are to be tested on completion to a pressure, ρT, determined by the following formula, without showing signs of weakness or defect:

but in no case is to exceed

where
ρ = design pressure, in MPa
ρT = test pressure, in MPa
t = nominal thickness of shell as indicated on the plan, in mm
σT = allowable stress at design temperature, in N/mm2
σ50 = allowable stress at 50°C, in N/mm2
c = corrosion allowance as defined in Pt 5, Ch 11, 1.2 Definition of symbols.

10.2 Mountings

10.2.1 Mountings are to be subjected to a hydraulic test of twice the approved design pressure.

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