procurement of spares of il make valves installed in the boiler of unit no 3 and 4 at 2x660mw sstpp, stage-ii, mppgcl, dongalia procurement of spares of il make valves installed in the boiler of unit no 3 and 4 at 2x660mw sstpp, stage-ii, mppgcl, dongalia , spares for valve sl. no. 4115933 , plug with stem for vsc 4 #1500, cv=83, ss316st, quick open, fb, va3r as per sl 4115933 , cage for vsc 4, #1500, cv=83, ss316st, quick open, fb, va3r as per sl 4115933 , pressure seal for vsc4, #1500 , spares for valve sl. no. 4115929, 4115930, 4115931, 4115932 , plug with stem for vsc 4 #1500, cv=39, ss316st, quick open, fb, va3r as per sl 4115929, 4115930, 4115931, 4115932 , cage for vsc 4, #1500, cv=39, ss316st, quick open, fb, va3r as per sl 4115929, 4115930, 4115931, 4115932 , pressure seal for vsc4, #1500 , spares for valve sl. no. 4115743, 4115744, 4115745, 4115746, 4115747, 4115920, 4115921, 4115922 , plug with stem for vsp 2 #600, cv=44, ss316+st+hc, quick open, fb, va1r as per sl 4115743, 4115744, 4115745, 4115746, 4115747, 4115920, 4115921, 4115922. , cage for vsp 2 #600, cv=44, ss316+st+hc, quick open, fb, va1r as per sl 4115743.4115744, 4115745, 4115746, 4115747, 4115920, 4115921, 4115922. , spares for valve sl. no. 4110558 , plug with stem for vsc ( m ) 2 #600, cv=60, ss316+st, quick open, pb, va1r as per sl 4110558 , cage for vsc ( m ) 2 #600, cv=60, ss316+st, quick open, pb, va1r as per sl 4110558. , pressure seal for vsc ( m ) 2, #600 , teflon packing for va1r, #600