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Regulation 47. Essential Fittings.



                                   P.U.(A) 5/70
FACTORIES AND MACHINERY (STEAM BOILER AND
                   UNFIRED PRESSURE VESSEL)
                           REGULATIONS, 1970
        PART III - UNFIRED PRESSURE VESSELS

Regulation 47. Essential Fittings.

(1) Every steam receiver shall be provided with-
(i) one or more safety valves;

(ii) a pressure gauge;

(iii) a stop valve; and

(iv) the manufacturer's or maker's nameplate.
(2) Every air receiver shall be provided with-
(i) one or more safety valves;

(ii) a pressure gauge;

(iii) a drain cock or valve; and

(iv) the manufacturer's or maker's nameplate.
(3) Every unfired pressure vessel (other than a steam receiver or an air receiver) shall be
provided with

(i) one or more safety valves:

Provided that a suitable rupture disc shall be provided in lieu thereof where it is
impracticable to provide a safety valve because-
(a) pressure fluctuations of an explosive character are to be encountered in the
unfired pressure vessel; or

(b) a safety valve would be gummed up owing to the nature of the working fluid;
or

(c) the working fluid is of a penetrating nature and a safety valve cannot be
maintained tight;
(ii) a pressure gauge; and

(iii) the manufacturer's or maker's nameplate.



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