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Racor - Model CCV & CRANKVE -Filter System
Contaminated crankcase emissions are a serious problem for diesel engine owners and the environment. These emissions are a result of gas escaping past the piston rings due to high cylinder pressures into the crankcase. In the crankcase, these gases are contaminated with oil mist, water, etc.
These contaminated emissions escape through the engine breather into the engine compartment and the engine intake system.
As oil mist builds up on engine components such as radiator cores, turbocharger blades, intercoolers and marine air filters, it attracts dust, grit and other airborne contaminants. The accumulation of particulates on the components affects the efficiency, performance and reliability of the engine.
Crankcase emissions coat the inside of engine rooms, fouling expensive components - increasing cleanup and related costs. These crankcase emissions not only pollute the air and engine room, they contribute to increased engine maintenance costs and can shorten the life of engine components.
The Racor CCV™ Crankcase Ventilation Filter Systems offer an effective solution to reduce contaminated crankcase emissions. The Racor CCV™ system removes crankcase emissions, providing protection for your engine and the environment. The Racor CCV™ system performs the following function(s):
- Keeps engine compartments and components clean.
- Prevents clogging of engine intakes, turbochargers and intercoolers.
- Improves reliability and maintainability of diesel engines.
- More efficient than other products available on the market.
- Reduces environmental pollution from crankcase emissions.
- “Green” element is completely burnable and crushable.
- Reduces smoke and odor in the immediate environment.
- Installed as original equipment by major manufacturers worldwide.

In the Racor CCV™ filtration system, the contaminated crankcase gases flow from the engine breather into the Racor CCV™ inlet. The contaminated crankcase gases flow underneath a valve diaphragm into the interior of the element. The valve regulates the crankcase to a slight negative pressure to reduce engine weeping and prevent damage to the seals. The contaminated crankcase gases then flow through the filter media. Soot and other contaminants are trapped by the media and the oil is separated from the air. The oil collects at the bottom of the filter housing for return to the engine sump. A check valve is incorporated into the drain return to prevent reverse flow from the oil pan. The filtered gases then flow through the Racor CCV™ outlet. The Racor CCV™ outlet connects with a tap sleeve or marine air filter that returns the filtered gases to the engine intake system. As the filter approaches the need for filter change, a filter service indicator appears at the top of the Racor CCV™.
