Answer Posted / nisarg

Deaerator at height not only provides Available suction head at boiler feed pump at higher side than required NPSH but also makes re-circulation valve discharge to remain in liquid state and not the gaseous state. because feed water temperature to the BFP (and also the temperature after the throttling in ARC valve) is lower than the saturation temperature of the return line of re-circulation to deaerator.

can i apply for rrb with my provisional certificate..........

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