Section 9 Hydraulic tests
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 5 Main and Auxiliary Machinery - Chapter 9 Pressure Vessels other than Boilers - Section 9 Hydraulic tests

Section 9 Hydraulic tests

Parent topic: Chapter 9 Pressure Vessels other than Boilers

9.1 General

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

p T =

but in no case is to exceed

p T =
where
p = design pressure, in bar
p T = test pressure, in bar
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.

9.2 Mountings

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

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