Steam boilers

Every steam boiler whether separate or one of a range, shall have attached to it– (a) a suitable safety valve, which shall be so adjusted as to prevent the boiler being worked at a pressure greater than the maximum permissible working pressure; (b) a suitable stop valve, connecting the boiler to the steam pipe; (c) a correct steam pressure gauge, which shall be easily visible to the boiler attendant and have marked upon it in distinctive colour the maximum permissible working pressure, and (d) a suitable water gauge to show the water level in the boiler, provided that paragraph (b) of this regulation shall not apply with respect to economisers, and paragraphs (c) and (d) shall not apply with respect to either economisers or superheaters.