Regulation 45. Corrosive service conditions.

                                     P.U.(A) 5/70

FACTORIES AND MACHINERY (STEAM BOILER AND

                    UNFIRED PRESSURE VESSEL)

                              REGULATIONS, 1970

            PART III - UNFIRED PRESSURE VESSELS

Regulation 45. Corrosive service conditions.

Where an unfired pressure vessel is to be subject to corrosive, abrasive or erosive conditions-

(i) the Chief Inspector may require that the scantlings of such vessel shall be increased

by an amount which he may deem appropriate before assigning and authorised safe

working pressure;

(ii) the Chief Inspector may require that a suitable lining shall be fitted to any part of such

vessel as he may specify before it is placed in service; and

 

(iii) an Inspector may require tell-tale holes to be drilled in the walls of such unfired

pressure vessel. Such holes shall be drilled to a depth not less than half the calculated

wall thickness less any corrosion allowance and shall be spaced not more than two feet

apart.

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