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The principle of gravity in the separator

The separating process is handled in the separator by making use of the principle of gravity (weight and buoyancy). The separator is divided into three zones, the sludge trap (1), the separator chamber (2) and the oil trap (3).

The sludge trap at the bottom serves to retain sediments such as sand. The oil trap located at the top serves to retain light liquids up to a density of 0.95 g/cm3. In the zone between the sludge trap and the oil trap, the so-called separating chamber, the incoming wastewater is calmed to a major extent due to the increase in flow cross-section and in surface area. Under the influence of the above-mentioned forces the light liquid, water and sludge are separated.

Outlet closure lock - self actuated

Oil/fuel separators and coalescence separators are equipped as standard with a self-actuated closure lock. This self-actuated closure lock prevents light liquid being released into the outlet, when the separator reaches its maximum oil/fuel storage volume. In the KESSEL light liquid separator this safety factor consists of a float inside a guide pipe which in normal operation is filled with water. The float is calibrated to float in water and sink in the light liquid (handles all substances with a specific gravity up to 0.95 g/cm3). If the maximum oil storage volume is achieved, the oil flows through lateral openings into the float guide pipe. The float then sinks and completely seals the outlet of the separator.

Low disposal costs thanks to oil/sludge extraction feature

During standard disposal, the hose from the disposal vehicle is held into the light liquid separator and the entire contents are pumped out. However, the quantity of light liquid is significantly lower than the total volume of the separator. Here, the situation is remedied with the oil extraction device. The suction hose is coupled to the oil suction system for disposal of the light liquid. This means that the disposal vehicle can only dispose of the volume that corresponds to the maximum quantity of light liquid. This saves time during disposal, reduces disposal costs and goes easy on the built-in components in the separator.

In the same way, the sludge suction system can be used to significantly reduce the disposal quantity too.

Our product range

KESSEL’s design based on EN 858 and state of the art manufacturing provide separation systems surpassing all needs of the industry. The separators are available in a wide range of sizes and different classes. 

 

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