REVISION 2.0 - MARCH 2017

GRAVITY SEPARATOR, TYPE CPIOil & Water separator

ADVANTAGES & CHARACTERISTICS

• Different configurations possible

• System principle according to stokes law

• Standard choice of materials

• Special materials available on request

• Internals for concrete basin

Gravity Separator CPIFor removal of free oils in the petrochemical industry Nijhuis Water Technology has developed a CPI system (corrugated plate interceptor).

APPLICATIONS• Removal of free separable oils• Removal of some sediment

Nijhuis Industries I www.nijhuisindustries.com

DESIGN CONSIDERATIONSDepending on the capacity and the required removal efficiency(based on droplet size) we will design the most suitableconfiguration.

The configuration of a CPI oil water separator is based on one ormore trains. Each train will contain a number of bays and each baywill be equipped with a number of PPA plate packs.

The CPI unit is equipped with a corrugated plate pack (PPA) toincreases the separation area. This results in an increased removalefficiency for the smaller oil drops.

In a CPI the liquid flows into the inlet channel. A flow distributionbaffle will equalize the flow over the entrance to the PPA platepacks.

The floating oils are moved by a movable oil collection through(skim pipe), from where it flows to an oil collection sump.