procurement of spares of ksb mil make control valves installed in boiler of 2x660 mw units , sstpp , mppgcl , dongalia . , spare parts for control valve sl . no . 164138 , mil piston cylinder- 41421 , size 12 , asme#2500 spl class , cv-575 , act size: 20 double acting +hw , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , seal ring , flat spring , spare parts for control valve sl . no . 164139 , mil piston cylinder-41421 , size 4 , asme#2500 spl class , cv-110 , act size: 16 double acting +hw , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , seal ring , flat spring , spare parts for control valve sl . no . 164140 , model no . 38-41114 , size 3 , asme#2500 spl class , cv-20 , act size: 18-8a , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , spare parts for control valve sl . no . 164144 , mil piston cylinder-41441 , size 4 , asme#2500 spl class , cv-56 , act size: 16 double acting +hw , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , seal ring , flat spring , spare parts for control valve sl . no . 164149 to 164152 , model no . 38-41111 , size 2 , asme#1500 , cv-8 , act size: 13-6a2 , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , spare parts for control valve sl . no . 164485 , model no . 37- 41421 , size 6 , asme#150 cv-225 , act size: 15-6a3 , gland packing set , body gasket , seat gasket , spare parts for control valve sl . no . 164489 , model no . 37-41432 , size 3 , asme#300 , cv-45 , act size: 15-6a3 , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , seal ring , spare parts for control valve sl . no . 164490 , model no . 37-41721 , size 2 , asme#150 , cv-35 , act size: 11-6a1 , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , spare parts for control valve sl . no . 164493 , model no . 38-41432 , size 4 , asme#600 , cv-195 , act size: 18-6a3 , gland packing set , body gasket , seat gasket , plug stem s / a , seat ring , cage , seal ring