procurement of spares for fly and bottom ash evacuation system related to unit -4 overhauling at bktps procurement of spares for fly and bottom ash evacuation system related to unit -4 overhauling at bktps , gate of rotary segregating valve additional data: gate of rotary segregating valve material-ni hard / high crome type-1 astm-a-532 class-1 type-a, 550 bhn min ) part no.: no-1851-02. , valve seat for rotary segregating valve ahp-2 bktpp moc: cs astm a-532-82 class iii type-a, make: indure additional data: part no-1851-05 , lateral, 200 nb x 200nb x 150 nb, 45 deg additional data: 200 nb x 200nb x 150 nb, 45 degree lateral of ahp-ii. material : ni-chrome-alloy cast iron with minimum hardness 450 bhn. chemical composition-c, 3% cr, mn, ni, si. part no-768-6-sl working pressure-less than 1 kg / sqcm ( working in vacuum line ) hydro test pr-2.0 kg / sqcm for 15 min. , equalising valve $for nuva feeder for ahp-iadditional data: modified 65 nb three way dcips type vent equalising valve ( without cylinder but compatible with existing eastern pneumatic make cylinder, bore size:2.5 inch & stroke size :4 inch ) complete assembly for air lock vessel & primary collector tank of ahp stage ii. moc : for disc & seat - high chrome. moc : for body - ci fg 220, is:210 moc : for disc lever ( c-20 ) - ms moc : for shaft with key - en 8 vendor should ensure fitting of each valve with existing cylinder. , valve seat for material handling valve 300x150 moc: alloy ci, 350 bhn, part no.106-012-01 additional data: moc : alloy ci ( 5% cr ) , 450-500 bhn minimum part no.:106-012-01 make : indure or equivalent. , nozzle, flushing header for bottom ash hopper moc: ss 316, part no.zs-8, make-indure, fadditional data: with socket. , inspection window assembly ( 200 dia ) of bottom ash hopper additional data: sight glass will be toughened glass of heat resistant type.part no-537-302 for bottom ash hopper. make-m / s.indure pvt ltd, new delhi. ( thickness - 20 mm ) . , sight glass, 3 / 4 thick # additional data: toughened glass of heat resistant type.part no-537-302 for bottom ash hopper. make-m / s.indure pvt ltd, new delhi ( thickness - 20 mm ) . , chain ( pitch 1-1 / 2 inch ) additional data: chain ( pitch 1-1 / 2 inch ) for driving of clinker grinder ( model 2x3 wide clinker grinder ) of ahp-ii no. of link in chain = 172 nos. , bearing support $for clinker grinder moc: ci fg-260 ( is:210 ) , part no.552-010 additional data: bearing support of clinker grinder ( model 3 wide ) , material-ci fg-260 ( is:210 ) , part no-552-010-01, ( 01 set = 2nos. ) for ahp ii. id = 120 mm. make : indure pvt. ltd. or equivalent. , driving sprocket ( 12 nos teeth ) # additional data: 1. driving sprocket ( 12 nos teeth ) of clinker grinder ( 2x3 wide clinker grinder model : a-553-l / r ) 2. pcd : 146 mm, 3. moc : en-8 and teeth portion heat treated & hardened to rc 35 - 40. , driven sprocket ( 42 nos teeth ) additional data: driven sprocket ( 42 nos teeth ) of clinker grinder ( 2x3 wide clinker grinder model : a-553-l / r ) pcd :510 mm, moc : en 8 and teeth portion heat treated & hardened to rc 35 - 40. , valve, check, 15nb for 12x10 diffuser feeder air line ahp-1 bktpp moc: ci additional data: valve, check, 15nb for alv fluidizing line moc : gun metal , shaft sleeve of clinker grinder ( model a-553-l / r ) additional data: ss - 410, bhn : 350-400, outer dia : 89.5 mm, inner dia : 79.5 mm, length :165 mm. , split lantern ring of clinker grinder additional data: spilit lantern ring in set of 3 pieces for clinker grinder ( model a-553-l / r ) , moc : gun metal, o.d - 119 mm. make : indure pvt. ltd. or equivalent. , wear ring 1set of 4nos clinker grinder additional data: model a-553-l / r part no-552-311-01, moc: ss 316 of ahp-ii. , driving gear set $for clinker grinder ahp-2 bktpp moc: ci fg 260 ( is: 210 ) ; part no: 552-013-01; make: indure; 01 set=02 nos , wear piece -intermediate for hydro ejector 200x200 moc: ms, 550 bhn, part no.a-606-r, make-i additional data: intermediate wear piece of 200 x 200 nb hydrojector, part no-216-013, material : high chrome as per is :4771 type 1 ( a ) , min 4.5% ni with 500 - 550 bhn make : indure or equivalent , nozzle plate of 200 x 200 nb hydrojector for par 64 spo additional data: nozzle plate of 200 x 200 nb hydrojector, part no-216-302, for ahp-ii. moc : ms, is - 2062, grade a. , union, ms-15 nb additional data: for fluidizing line of alv, moc : s.s. , pipe bend ( short ) , 100nb, 90 deg for ahp bktpp moc: ms is:1239, heavy grade, without flange , pipe bend ( short ) , 50nb, 90 deg for ahp bktpp moc: ms is:1239, heavy grade, without flange , pipe bend ( short ) , 80nb, 90 deg moc: ms is:1239, heavy grade, without flange => limited