BOILERMAN: Regulation 25. Economiser fittings.

P.U.(A) 5/70

FACTORIES AND MACHINERY (STEAM BOILER AND

UNFIRED PRESSURE VESSEL)

REGULATIONS, 1970

PART II - STEAM BOILERS

Regulation 25. Economiser fittings.

(1) Every non-steaming economiser shall be provided with-

(i) an isolating valve and a non-return valve fitted between the economiser water outlet

and its associated steam boiler;

(ii) at least one safety valve having a diameter not less than two inches. Where such

economiser is arranged in two or more sections and fitted with circulating devices at least

one such safety valve shall be fitted in each section;

(iii) a thermometer or other temperature indicating device at both the water inlet and

outlet connections, so located as to be easily accessible and visible;

(iv) a suitable pressure gauge, preferably located on the inlet manifold;

(v) means for the release of any air which may accumulate therein;

(vi) means for completely draining the water;

(vii) where provided with means for heating the incoming feed water by mixing it with hot

water from the economiser outlet, a non-return valve fitted in the hot water return line;

and

(viii) an alternative means of feeding the steam boiler, other than through such

economiser.

(2) All economiser valves and fittings shall comply with the provisions of these regulations relating

to steam boiler fittings which are appropriate.

(3) Every economiser shall be provided with a by-pass flue fitted with isolating dampers so that

the flow of gases over the economiser may be cut off when necessary. The operating gear for

such dampers shall be readily accessible and means shall be provided to indicate clearly the

open and closed positions.

BOILERMAN