Selection of boiler feed water pump

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I would appreciate it if the experts from electric equipment manufacturers could let me know which manufacturer’s feed water pumps are used in your factory’s boilers, what the models are, and how well they are performing Our plant currently has two sets of circulating fluidized bed boilers of the TG-75/5.29-M11 and TG-100/5.29-M11 types, which are equipped with plunger feed water pumps – three pumps with capacities of 85 m3/h, 65 m3/h, and 65 m3/h respectively, and a head of 840 m. Normally, only one boiler is in operation, with two feed pumps in use and one as a backup. Now that two boilers will operate simultaneously, it is necessary to select feed pumps anew; multi-stage feed pumps would be the best choice. In production, three operating modes will exist: 75T, 100T, and 75T+100T. A feed pump selection plan is requested