procurement of spares for various pumps , installed in ash water pump house wilo mather-platt of ash handling plant at ph i at sstpp , mppgcl , dongalia , high pressure water pumps ( model no . 200/250 est , sr no . 81226501/10/1 , neck ring , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , thrust coller , cowl nut ( lh ) , cowl nut ( rh ) , sleeve nut ( lh ) , sleeve nut ( rh ) , shaft sleeve , water deflector , shaft with key , impeller , casing bottom half & top half , coupling , sleeve o ring , coupling key , locking washer , lock nut , low pressure water pumps ( model no . 250/250 ast , sr . no . 81226501/30/1 , neck ring , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , bearing housing ( de ) , bearing housing ( nde ) , thrust coller , sleeve nut ( lh ) , sleeve nut ( rh ) , shaft sleeve , shaft with key , impeller , casing bottom half & top half , coupling , sleeve o ring , coupling key , locking washer , lock nut , hp seal water pumps ( model no . rn 65-9 , sr . no . 81226501/130/1 , bearing end cover ( de ) , bearing end cover ( nde ) , sleeve nut ( lh ) , sleeve nut ( rh ) , delivery diffuser , combined sleeve & nut , suction distance sleeve , water thrower , balance valve , combined seating bush , o ring for sleeve , o ring for suction cover , o ring for delivery cover , o ring for stuffing box cover , o ring for middle body , economiser water pumps ( model no . 80/100 gst , sr . no . 81226501/70/1 ) economiser water pump , impeller , neck ring , shaft sleeve , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , thrust coller , sleeve nut ( lh ) , sleeve nut ( rh ) , impeller nut , fly ash water pumps ( model no . 8/10 cme , sr . no . 81226501/50/1 ) , impeller , neck ring , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , thrust coller , cowl nut ( lh ) , cowl nut ( rh ) , sleeve nut ( lh ) , sleeve nut ( rh ) , shaft sleeve , stuffing box bush , shaft with key , coupling , sleeve o ring , coupling key , locking washer , lock nut , conditioner water pumps ( model no . 100/125bst , sr . no . 81226501/50/1 , neck ring , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , thrust coller , sleeve nut ( lh ) , sleeve nut ( rh ) , flushing water pumps ( model no . 12/14ale , sr . no . 81226501/90/1 , impeller , neck ring , pump shaft , shaft sleeve , lantern ring , bearing end cover ( de ) , bearing end cover ( nde ) , bearing housing ( de ) , bearing housing ( nde ) , thrust coller , cowl nut ( lh ) , cowl nut ( rh ) , sleeve nut ( lh ) , sleeve nut ( rh ) , stuffing box bush , water deflector , impeller key , casing bottom half & top half , coupling , sleeve o ring , coupling key , locking washer , lock nut , pump ( model no . - et iso 13 , shaft sleeve