Steam pipe systems

(1) Every steam pipe and every fitting connected thereto through which steam may pass shall be so designed, constructed and installed as to withstand the maximum working stresses to which it may be subjected. (2) Means shall be provided for draining every steam pipe where otherwise dangerous water hammer action might occur. (3) Where a steam pipe or fitting may receive steam from any source at a higher pressure than that for which it is designed a suitable pressure reducing valve, pressure relief valve and pressure gauge shall be fitted.