procurement of set of carb clad coated seat and disc ( gate ) of rotary segregating valve 200 nb ( rsv ) and 200 nb branch segregating valve ( bsv ) installed at ahp, stage ii , 2x660 mw, sstpp, dongalia, dis khandwa , set of carb coated seat and disc ( gate ) for 200 nb rotary segregating valve ( rsv ) as per indure drg no- i-5036-m-eq-sm-25 & assy number a-188 as per technical specification of 200 nb rsv 1. micro hardness : >1400hvn carb coat 2. carb clad coat >500um on functional surfaces 3. geometrical dimensional tolerances as per oem specification 4. base material seat-h&t grade steel ( moc-alloy cs-250 bhn min 5. slide gate / disc ( moc- alloy ci-250 bhn min ) ss grade 420 6. severe abrasion & erosion resistance 7. assured service life: 12 months ( 01 set=01 seat + 01 disc / gate ) , set of carb coated seat and disc ( gate ) for 200 nb branch segregating valve ( bsv ) as per indure drg no- i-5036-m-eq-sm-16 & assy number a-128-rs 1. micro hardness for gate plate >1400 hvn carb coat & micro hardness for seat plate > 660 hvn carb coat 2. carb clad coat >500um on functional surfaces on both side with < 1ra surface finish 3. geometrical dimensional tolerances as per oem specification 4. base material seat: h&t grade steel ( moc-alloy cs-250 bhn min ) 5. slide gate / disc ( moc- alloy ci-250 bhn min ) ss grade 420 6. severe abrasion & erosion resistance 7. assured service life: 12 months ( 01 set=02 seat + 01 disc / gate )