procurement of leakproof make complete mechanical seals for various pumps installed in unit no. 1 and 2 at 2x600mw sstpp, mppgcl, dongalia procurement of leakproof make complete mechanical seals for various pumps installed in unit no. 1 and 2 at 2x600mw sstpp, mppgcl, dongalia , mech. seal spares for acw pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 12 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 4 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 6 nos. ) , mech. seal spares for dmcw-sg pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 16 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 4 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 8 nos. ) , mech. seal spares for dmcw-tg pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 8 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 4 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 4 nos. ) , mech. seal spares for hotwell make up pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 10 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 4 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 3 nos. ) , mech. seal spares for service water pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 10 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 2 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 3 nos. ) , mech. seal spares for potable water pump , seal ring carbon r ( part no. 174 ) , mating ring sic ( part no. 220 ) , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 10 nos. ) , drive collar-ss316 ( part no. 570 ) , drive ( lock ) pin- ( part no. 515 ) ( 1 set= 2 nos. ) , grub screw- ss316 ( part no.431 ) ( 1 set= 3 nos. ) , mech. seal spares for boiler fill pump , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , springs ( part no. 411 ) ( 1 set= 8 nos. )