Adaptor backing flanges are used to couple a glass end to the flange having a different bolt configuration. These flanges are made of cast iron and are supplied with inserts.

These are particularly used to fit glass equipment on non-glass equipment like Glass-lined reactors etc.

Adaptor backing flanges are generally supplied undrilled. However, if specified, these can be supplied drilled as per “Table E”, “Table F” and “ASA150” standards.


Undrilled flangesDrilled to Table E
Cat.Ref.DNDD1D2LCat.Ref.pcdn x dØ
 CFA125115435110CFA1/E1824 x 12Ø
 CFA1.540150586610BFA1.5/E984 x 16Ø
 CFA2*50165708112CFA2/E1144 x 16Ø
 CFA3*8020010111212CFA3/E1464 x 16Ø
 CFA4*10022013414812CFA4/E1788 x 16Ø
 CFA6*15028518619615CFA6/E2358 x 19Ø
 CFA9*22539526028215CFA9/E32412 x 19Ø
 CFA12/E30044534236318CFA12/A40612 x 23Ø

Drilled to Table FDrilled to ASA 150
Cat.Ref.pcdn x dØCat.Ref.pcdn x dØ
 CFA1/F874 x 16Ø CFA1/A794 x 16Ø
 CFA1.5/F1054 x 16Ø CFA1.5/A984 x 16Ø
 CFA2/F1274 x 16Ø CFA2/A1214 x 19Ø
 CFA3/F1658 x 16Ø CFA3/A1524 x 16Ø
 CFA4/F1908 x 16Ø CFA4/A1908 x 16Ø
 CFA6/F26012 x 19Ø CFA6/A2418 x 19Ø
 CFA9/F35612 x 230 CFA9/A2988 x 19Ø
 CFA12/F43816 x 23Ø CFA12/A43212 x 23Ø

* marked items are available fast.