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Gas Diffusers (Porous Plugs)
Capital offers an extensive series of gas diffuser products for the treatment of melts across a range of hot metal industries. All gas diffusers are supplied to suit the customers’ requirements with respect to the metal casings and gas feed pipe work.
Whether you are a small investment foundry or a large integrated steelworks, our gas diffuser technology can help and has been proven in hundreds of sites worldwide.
We can offer gas treatment solutions to ferrous and non-ferrous metallurgical processes. Gas diffusers for use in induction furnaces are available in a range of qualities, sizes and fittings.
Capital’s gas diffuser technology has also been incorporated into a pressed crucible. For more information please consult our brochure or speak to one of Capital’s representatives.
| Product Name | Bulk Density (g / cm³) | Apparent Porosity (%) | Cold Crushing Strength (MPa) | Comments |
| Caperdiff 94AL | 3.16 | 17.7 | 120 | Pressed and fired permeable alumina diffuser. |
| Caprax AS DP | 3.12 | 16.6 | 55 | Precast spinel-bonded high alumina with directional or channel porosity.. |
| Product Name | Al₂O₃ | SiO₂ | Fe₂O₃ | CaO | MgO | P₂O₅ |
| Caperdiff 94AL | 94 | 2.6 | 0.1 | 0.1 | - | 2.9 |
| Caprax AS DP | 93 | 0.1 | 0.1 | 1.5 | 4.2 | - |
