mtps - i - tm unit iv - renewal of gasket, at water box side, tube nest side, condensate inlet and outlet flange, inspection and cleaning of tube nest and hydraulic testing of lph-3 and 4, gc-1 and renewal of gasket, at deaerator main flange, deaerator lines flanges at deaerator end and overhauling of safety relief valves in hphs and deaerator tank during anual overhauling work 2020-21 .
