procurement of different spares related to dry ash system for day to day running maintenance, ahpmm, stgi,sgtpp. , procurement of different spares related to dry ash system for day to day running maintenance, ahpmm, stgi,sgtpp. , valve disc, 65nb vent-eq valve 2 way type vent/eq valve. moc: high chrome alloy c.i. hardness: 450-500 bhn ( moc: high chrome alloy c.i. hardness: 450-500 bhn ) , valve seat, 65nb vent-eq valve 2 way type vent/eq valve. moc: high chrome alloy c.i. hardness: 450-500 bhn ( moc: high chrome alloy c.i hardness: 450-500 bhn ) , lever, inside of vent and equalising vv, ( valve size: 2-1/2,as per drw no-25p06-1b-t-121,part no-4. moc:steel,is.1030 ) , shaft with key for vent & equalising vlv ( valve size: 2-1/2,as per drw no-25p06-1b-t-121, part no-3, material:en-8 ) , unequal short piece for 65nb vent line for nuvafeeder sgtpp1, for nuvafeeder sgtpp1, for nuvafeeder sgtpp1, both side unequal flange,m.o.c: c.i,pipe thk: 08mm,flange to flange distance: 90mm,big flange dimension: flange thk: 10mm,pcd: 125mm,od: 164mm , vent/eq valve comp assly w/o actuator # dcips for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, size: 2-1/2 as per drawing no-25p06-1b-t-121 , gate orifice for orifice feeder for orifice feeder sgtpp dcips moc:durite bhn-350,as per dcips dwg no.25p06-1b-t-351 , fluidizer orifice for orifice feeder for orifice feeder sgtpp dcips moc: durite bhn-350,as per dcips dwg no.25p06-1b-t-351 , gate disc,12x6 diffuser intake vv for diffuser intake valve sgtpp dcips moc: durite bhn:450-500 as per dcips drg.25p06-t-1b-032 , oil seal set for diffuser i oil seal for 12in x 6 in fly ash diffuser intake valve ( comprising of 2 nos bush (moc:brass), 2 nos. rubber ring & 2 nos. rubber oil seal, as per sample ) , poke hole cover of esp hopper mat: ci, size:dia- 138mm, thk:65mm , lever for hopper inlet poke hole , poke hole gasket for ash intake silicon rubber , size : o/d : 130, i/d: 95, t: 6, ahp-i => limited