tender for procurement of seat and disc for different dry ash handling valves at ahp stage ii,sgtpp,wbpdcl , procurement of seat and disc for different dry ash handling valves at ahp stage ii,sgtpp,wbpdcl , valve disc for rotery segrigating valve. as per (astm: a532 grade- iii type -1a; hardness - 500 bhn min.). ( part no. 188-02 sgtpp drg. no. i-5034-m-ga-062, rev-02 make: indure or equivalent ) , gate seat for rotery segrigating valve. as per (astm: a532 grade- iii type -1a; hardness - 500 bhn min.). ( part no. 188-05 sgtpp drg. no. i-5034-m-ga-062, rev-02 make: indure or equivalent ) , slide gate/disc for segregating slide valve 250nb moc 3mm thk ss 420 300bhn ( moc: ss 420,hardness-300bhn,thk-03mm make: indure or equivalent ) , slide gate/disc for segregating slide valve 200nb moc 3mm thk ss 420 300bhn ( moc: ss 420,hardness-300bhn,thk-03mm make: indure or equivalent ) , slide gate of material handling valve (model a-102xl-pl/r) ( moc: slide gate-ss-410,350bhn, part no.106-301 make : indure or equivalent ) , valve seat of material handling valve (model a-102x-pl/r) ( moc : seat- alloy ci ( 2% cr ),350-400 bhn, part no.:106-012-01 make : indure or equivalent. ) please enable macros to view boq information