supply of ingersoll rand make spares for air compressors , list of item ( s ) / work ( s ) as per tender documents , intercooler stg1 6450nm3 , p/n: 17255027 ; compressoe reciprocating manufacturer : ingersoll rand model : centac-c 45 m x 3 ; intercooler stg1 6450nm3 , p/n: 17255027 drawing no . rf 2209 air flow ; 6450 nm3/hr shell od; 660 x8tx1490 lg moc sa516gr70 tubes 167 admibrass sb111c-44300 od15 . 875x18bwgtx1600l floating/statinary tube sheet moc :sb171 c-46400 floating t/s : 565odx30thk stnry t/s : 684odx30thk fins : aluminium 0 . 3 thk plate type 20 . fpi air inlet temp : 139 . 22 outlet temp ; 41 . 33 degc ; vendor to confirm that supplied interstage cooler including shell must be one to one replacement of existing interstage cooler at the existing foundation of stage i cooler installed in tps/cgp:2 . any modification in piping or foundation shall be in scope of vendor only . iocl will not bear any cost for it . vendor will submit ga drawing to iocl for approval of same . final hydrotest of both shell side as well as tube side shall be carried out in presence of iocl engineer . , intercooler stg2 6450nm3 , p/n:17255035 ; compressoe reciprocating manufacturer : ingersoll rand model : centac-c 45 m x 3 ; intercooler stg2 6450nm3 , p/n:17255035 drawing no . rf 2210 air flow ; 6450 nm3/hr air inlet temp : 131 . 35 outlet temp ; 41 . 33 degc fins : aluminium 0 . 3 thk plate type 20 . fpi shell od; 660 x8tx1490 lg moc sa516gr70 tubes 167 admibrass sb111c-44300 od15 . 875x18bwgtx1600l floating/statinary tube sheet moc :sb171 c-46400 stnry t/s : 684odx30thk floating t/s : 565odx30thk ; vendor to confirm that supplied interstage cooler including shell must be one to one replacement of existing interstage cooler at the existing foundation of stage 2 cooler installed in tps/cgp:2 . any modification in piping or foundation shall be in scope of vendor only . iocl will not bear any cost for it . vendor will submit ga drawing to iocl for approval of same . final hydrotest of both shell side as well as tube side shall be carried out in presence of iocl engineer . , after cooler 6151nm3/hr , p/n: 17255043 ; compressoe reciprocating manufacturer : ingersoll rand model : centac-c 45 m x 3 ; aftercooler 6451nm3/hr , p/n:17255043 drawing no . rf 2211 air flow ; 6151 . 54 nm3/hr air inlet temp : 130 . 02 outlet temp ; 40 degc tubes 134 admibrass sb111c-44300 od15 . 875x18bwgtx2134l shell od; 610 x8tx2024 lg moc sa516gr70 stnry t/s : 634odx30thk floating t/s : 515odx30thk floating/statinary tube sheet moc :sb171 c-46400 fins : aluminium 0 . 3 thk plate type 20 . fpi ; vendor to confirm that supplied after cooler with shell must be one to one replacement of existing after cooler with shell at the existing foundation of after cooler installed in cgp:2 . any modification in piping or foundation shall be in scope of vendor only . iocl will not bear any cost for it . vendor will submit ga drawing to iocl for approval of same . final hydrotest of both shell side as well as tube side shall be carried out in presence of iocl engineer . , after cooler 6500nm3/hr , p/n:70360979 ; compressoe reciprocating manufacturer : ingersoll rand model : centac-c 45 m x 3 ; aftercooler with moisture seperator , p/n:70360979 drawing no . rf 1606 air flow ; 6500 nm3/hr air inlet temp : 261 . 37 f outlet temp ; 104 f shell od; 406 x8tx3482 lg moc sa516gr70 floating/statinary tube sheet moc :sb171 c-46400 floating t/s : 387odx38thk stnry t/s : 436odx32thk tubes 248 admibrass sb111c-44300 od15 . 875x18bwgtx3581l ; vendor to confirm that supplied after cooler & moisture seprator must be one to one replacement of existing after cooler at the existing foundation of after cooler & moisture seprator installed in tps . any modification in piping or foundation shall be in scope of vendor only . iocl will not bear any cost for it . vendor will submit ga drawing to iocl for approval of same . final hydrotest of both shell side as well as tube side shall be carried out in presence of iocl engineer .