tender for procurement of set of carb clad coated seat and disc (gate) of rotary segregating valve 200nb (rsv) installed at ahp-ii of 2x660 mw, sstpp, mppgcl, dongalia. (as per the attached tender schedule) , set of carb coated seat and disc(gate) for 200 nb rotary segregating valve (as per existing indure drg. no.-i-5036-m-eq-sm-25 & assy. no.- 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)