Oil separators in Polypropylene (PP) tank

These units are particularly popular at harbours and ship wharfs for the removal of oil from bilge water generated in ships. The oily water is transferred by a positive displacment pump (screw pump or diaphragm pump) to the oil separator.

N.B. Do not use impeller or centrifugal pumps for transferring oily water to an oil separator on order to avoid causing emulsions.

The PSF series of oil spearators can also be used for removing an treating spilled oil in harbours. For this apllication FREYLIT can supply the necessary floating oil skimmer. This oil skimmer floats on the surface of the waste water and collects oily water for transferring by positive displacement pump to the oil separator.

If the oily water is delivered by natural gravity only (laminar flow) it is possible to exceed the nominal flow rate of the separator. For example, Model M+R6PSF has nominal flow rate of 2000 litres per hour, if operated using a pump. If the only water is fed by gracity only the flow rate can be up 20.000 lites per hour, without compromising effluent water quality.