Hong Kong Regulations

BOILERS AND PRESSURE VESSELS REGULATIONS - REGULATION 3

Requirements with respect to boilers

PART II

BOILERS, STEAM RECEIVERS AND AIR RECEIVERS

(1) Every boiler, whether separate or one of a range-

   (a)  shall have attached to it-

        (i)    a suitable spring-loaded safety valve, separate from any
               stop-valve and capable of being sealed, which shall be fixed
               directly to the boiler and so adjusted as to prevent the boiler
               being operated at a pressure greater than its maximum
               permissible working pressure;

        (ii)   a suitable stop-valve connecting the boiler to the system;

(87 of 1988 s. 43)

        (iii)  a correct pressure gauge, connected to the boiler and easily
               visible by the boiler attendant, which shall have marked upon
               it by a red line the maximum permissible working pressure of
               the boiler and which shall indicate the pressure in the boiler
               in pascals or multiples of pascals; (87 of 1988 s. 43)

        (iv)   at least one water gauge of transparent material, or of such
               other type as the Authority may approve, to show the water
               level in the boiler, which shall, if it is of the glass tubular
               type, be provided with an efficient guard that does not
               obstruct the reading of the gauge; and

(87 of 1988 s. 51)

        (v)    where it is one of 2 or more boilers, a plate bearing a
               distinguishing number, which shall be easily visible;

   (b)  shall be provided with means for attaching a test pressure gauge; and

   (c)  unless it is externally fired, shall be provided with a suitable
        fusible plug or an efficient low-water alarm device.

(2) Subregulation (1)(a)(ii) shall not apply with respect to economizers.

(3) Subregulation (1)(a)(iii), (iv) and (v), (b) and (c) shall not apply with
respect to economizers or superheaters.

(4) Subregulation (1)(a)(iv) and (c) shall not apply to vessels in which oil
is heated at a pressure greater than atmospheric pressure. (87 of 1988 s. 43)