Section 10 Hydraulic tests
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 2 Machinery and Engineering Systems - Part 8 Pressure Plant - Chapter 2 Other Pressure Vessels - Section 10 Hydraulic tests

Section 10 Hydraulic tests

Parent topic: Chapter 2 Other Pressure Vessels

10.1 General

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

but in no case is to exceed

where

p = design pressure, in MPa
pT = 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 Vol 2, Pt 8, Ch 1, 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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