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Gravity Separation of Biokem

The time it takes the water to separate will depend on the system’s temperature, as well as the additive formulation, age of the oil and the base oil type. <br>

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Gravity Separation of Biokem

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  1. Gravity Separation of Biokem

  2. As already mentioned, free water in the system will settle to the bottom of the tank (assuming the specific gravity of water is greater than the lubricant). The time it takes the water to separate will depend on the system’s temperature, as well as the additive formulation, age of the oil and the base oil type.

  3. Some oils are designed to hold water in suspension rather than to allow it to separate out, making gravity separation a less-than-effective strategy.

  4. In basic systems, opening the drain valve and allowing the water to drain off may be sufficient.

  5. The effectiveness of this action, however, will depend upon how long the system was allowed to stand prior to draining the water, whether the temperature was low enough to lower the saturation point dramatically and the oil’s demulsibility characteristics.

  6. Lowering the saturation point helps ensure that as much of the water as possible will exist in the Free State. In larger volume systems, a separate settling tank may be employed to allow the oil to cool and demulsify prior to water removal (Figure 1).

  7. The major downside to this method is that it removes only free water, so elements of emulsified and dissolved water will remain. The upside is the low cost of water removal.

  8. For more information, visit us http://www.biokem.com.au/

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