Alumina Fibre Furnace Adaptor – Split Tube Support
Split adaptors made from alumina fibre board for supporting a process tube at compatible furnace openings. Four size combinations cover 50.8 mm or 60 mm tube diameters and 80 mm or 101.6 mm furnace-side diameters. Check the shoulder geometry and axial clearance against the furnace drawing before selecting a configuration.
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S4R · Laboratory ceramics
Split alumina-fibre supports for furnace tubes
These shaped fibre-board supports adapt a compatible furnace opening to a smaller process tube. Select the furnace-side diameter and the tube outside diameter as one matched combination.
Tube outside diameter
50.8 or 60 mm
Furnace-side diameter
80 or 101.6 mm
Illustration of the split support geometry; supplied quantity depends on the selected configuration.
Match both diameters
| Furnace-side diameter | Process-tube outside diameter |
|---|---|
| 80 mm | 50.8 mm (2 in) |
| 101.6 mm (4 in) | 50.8 mm (2 in) |
| 80 mm | 60 mm |
| 101.6 mm (4 in) | 60 mm |
Technical specifications
| Parameter | Specification |
|---|---|
| Material | Alumina fibre board |
| Geometry | Split support with shoulder |
| Tube outside diameters | 50.8 mm (2 in) or 60 mm |
| Furnace-side diameters | 80 mm or 101.6 mm (4 in) |
| Function | Tube support and thermal insulation |
| Sealing function | No gas-tight or vacuum-tight seal |
Installation geometryCheck the shoulder, axial dimensions and available clearance on the furnace assembly drawing. The nominal diameters alone do not establish compatibility.
Supply quantityThe 60 mm tube configurations are specified as a pair. Confirm the pack quantity for the 50.8 mm configurations before ordering.
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