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WebSep 26, 2013 · Plan 54 —An external system is used to pressurize and circulate the barrier fluid. A Plan 54 system can be broadly classified into two groups: closed- and open-loop systems. In closed-loop systems, the … WebThe major circulating water system components are shown in Figures 11.1-1 and 11.1-2 and discussed in the following sections. 11.1.3.1 Circulating Water Pumps The circulating water pumps are motor-driven, vertical, one-stage, single-suction, open-gpm. Each pump is driven by a vertical, squirrel cage, induction motor rated for 1,500 Web* The main parts of the pump include: pump body, impeller, stator, rotor, shielded sets, and vent plug. * The pump does not use mechanical seal; stator and rotor are sealed with … shark navigator accessories nv 26