(a)
- (1) Provisions shall be made for the expansion and contraction of steam mains connected to boilers by providing substantial anchorage at suitable points so that there shall be no undue strain transmitted to the boiler.
- (2) Steam reservoirs shall be used on steam mains when heavy pulsations of the steam currents cause vibration of the boiler shell plates.
- (b) Each superheater shall be equipped with at least one (1) drain so located as to most effectively provide for the proper operation of the apparatus.