The elbow shall be bolted to the floor of the wet-well and be so designed as to receive the pump connecting flange without the need for any bolts, nuts or clamps.
Heating pipe for fuel oil tank leaked on the flange position which under the floor front the boiler, to be renewed.
在锅炉前部底处燃油柜中加热管的法兰盘处漏，需换新。
3
Visual observations showed that a horizontal displacement in the longitudinal direction of the bridge developed between the tie girder and the top flange of the floor beam at the end connection.