Regulation 65. Coupled boilers and pressure vessels.

                                    P.U.(A) 5/70

FACTORIES AND MACHINERY (STEAM BOILER AND

                   UNFIRED PRESSURE VESSEL)

                              REGULATIONS, 1970

            PART IV - MISCELLANEOUS PROVISIONS

Regulation 65. Coupled boilers and pressure vessels.

(1) Where two or more steam boilers or unfired pressure vessels having differing authorised safe

working pressures are coupled together, such steam boilers or unfired pressure vessels shall not

be operated at a pressure greater than that of the steam boiler or unfired pressure vessel having

the lowest authorised safe working pressure:

Provided that each such steam boiler or unfired pressure vessel may be operated at its own

authorised working pressure where suitable pressure reducing valves are fitted to the system to

the satisfaction of an Inspector to ensure that no steam boiler or unfired pressure vessel can be

subjected to a pressure greater than its authorised safe working pressure.

(2) Every reducing valve shall be fitted with a suitable safety valve and a suitable pressure gauge

adjacent thereto on the low pressure side.

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