1964_BOILERS_AND_PRESSURE_VESSELS_REGULATIONS — Page 3

1988 Ed.]

Boilers and Pressure Vessels Regulations

[CAP. 56

A 3

[Subsidiary]

(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)

Requirements with respect to steam receivers

4.

(1) Every steam receiver that is not so constructed and maintained as to withstand with safety the maximum permissible working pressure of the boiler to which it is connected or the maximum pressure that can be obtained in the pipe connecting the steam receiver with any other source of supply of steam shall be fitted with-

(a) a suitable reducing valve or other suitable automatic appliance to prevent the maximum permissible working pressure of the steam receiver being exceeded;

(b) a suitable spring-loaded safety valve that is capable of being sealed and is so adjusted as to permit the steam to escape as soon as the maximum permissible working pressure of the steam receiver is exceeded or a suitable appliance for cutting off automatically the supply of steam as soon as that pressure is exceeded;

(c) a correct steam pressure gauge, which shall have marked on it by a red line the maximum permissible working pressure of the steam receiver and which shall indicate the pressure of steam in the steam receiver in pascals or multiples of pascals; (87 of 1988 s. 44)

(d) a suitable stop-valve; and

(e) where it is one of 2 or more steam receivers, a plate bearing a distinguishing number, which shall be easily visible.

(2) The safety valve and the steam pressure gauge of every steam receiver shall be fitted on the steam receiver or on the supply pipe between the steam receiver and the reducing valve or other appliance provided to prevent the maximum permissible working pressure of the steam receiver being exceeded.