| Type 28AT | Gas Lubricated, Non-Contacting Gas Seal For Turbo Compressors |
| Type 28XP | Gas Lubricated, Non-Contacting Gas Seals For Turbo Compressors |
| Type 28EXP | Highest Pressure Non-Contacting, Dry-Running Gas Seal |
| Type 28ST | Non-Contacting, Steam Turbine Gas Seal |
| Type 28VL | Non-Contacting, Vaporising Liquid Seal |
| Type 83 | Separation Seal (Contacting Technology) |
| Type 93FR | Separation Seal (Non-Contacting Technology) |
