bids are invited for gasket ( channel tube sheet ) dia 1690 / 1640 th 3 mm with central rib of width 10 mm moc is 2712 gr.w1.for cond oh regenerator e 308 a / b. gasket shall be without joint 2 gasket ( channel tube sheet ) dia 1690 / 1640 th 3 mat is 2712 gr, w1.for c ond.oh regenerator e308 a / b gasket shall be without any jo int 3 gaskets channel flange to tube sheet for e-302 a / b benfileld reboiler, size:od 1507mm*id 1481mm* 3mm thick with 10mm wide central rib, materi al:ss 304 jacketed asbestos, drg.no.: th / 11 / 2108 rev-0 4 gasket for shell cover for e-312 final gas cooler size:od:1614mm*id:15 80mm*4.5mm thick, material:ss304 metal jacket + compressed asbestos f ibre as per drg.no.:t h / 1th / 11 / 2110.rev 0 5 gasket for channel cover &tube sheet to channel flange for e 312 final gas cooler, size:od 1446 * id 1414 * 4.5mm thick with one rib 10mm wi de, material:ss304 metal jacket + compressed asbestos fibre, drawing no.:th / 11 / 2110, circular ring ofgaske t shall be without joint 6 gasket for tube sheet to shell flange for e 312 final gas cooler, size :od1446mm, id1414mm & 4.5mm thick, material:ss314 metal jacket + comp ressed asbestos fibre, drawing no.:th / 11 / 2110. 7 gasket floating head for e312 final gas cooler size:od 1372mm * id 134 6mm * 4.5mm thick with 10mm wide rib at the center, material:ss304 meta l jacket + compressed asbestos fiber as per drg.no.:th / 11 / 2110 rev 0 8 e-353 gasket with rib at centre, size :- id 1523 x od 1578 x 6.35 mm thk, width of rib :-10 mm, material ss 304 jacketed non asbestos double enveloped fully enclosed 9 e-353 gasket without rib, size :- id 1523 x od 1578 x 6.35 mm thk, material ss 304 jacketed non asbestos double enveloped fully enclosed 10 gaskets dia 1570x1526x3 v1500-ac or eq. / for l p bfw preheater oh rege nerator e-306 11 gaskets t3 v1500-ac or eq / for l p bfw preheater oh regenerator e-306 total quantity : 64