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Spring Air Systems Water Wash Ventilator Maintenance Manual 11/01
14
GREASE EXTRACTOR OPERATION
TYPE “C” GREASE EXTRACTOR
The SPRING AIR SYSTEMS type “C” grease extractor has the highest grease
extraction efficiency available in a water wash ventilator.
The contaminated exhaust air enters the high velocity inlet slot A and flows
through a transition zone to the VORTEX CHAMBER B. The cold-water spray
manifold D sprays a fine cold-water mist into the path of the exhaust air. The
cold-water spray causes the grease particles to cool, congeal and coagulate
forming larger grease globules. The larger heavier globules are more readily
removed through centrifugal force as the exhaust air accelerates through a
complete 270-degree turn around the VORTEX BAFFLE C. The grease, dirt
and lint are deposited on the PRIMARY VARIABLE FLOW BAFFLE G and the
VORTEX BAFFLE C. The PRIMARY VARIABLE FLOW BAFFLE G is also
adjustable along the length of the grease extractor to provide varying exhaust
airflow. The sloping VORTEX BAFFLE C drains the collected grease to the
end of the ventilator into a grease trough.
Type “C” Extractor
Figure 13
The cold-water spray extends from the entrance to the exit of the VORTEX CHAMBER B, which provides a secondary
coverage as the exhaust air enters the secondary grease extraction chamber. The exhaust air continues into the
secondary extraction chamber, which contains an additional baffle, F. Residual grease is deposited on the secondary
baffle as the exhaust air gyrates through the secondary chamber. After leaving the secondary chamber the exhaust air
enters the ventilator fire damper and duct collar and discharges into the ductwork.
TYPE “H” GREASE EXTRACTOR
The SPRING AIR SYSTEMS type “H” grease extractor is a high
efficiency water wash grease extractor.
The contaminated air enters the high velocity inlet slot A and flows
through the transition zone to the VORTEX CHAMBER B. The
exhaust air accelerates through a complete 270-degree turn around
the VORTEX BAFFLE C. Centrifugal force causes the grease, dirt
and lint particles to deposit on the PRIMARY VARIABLE FLOW
BAFFLE G and the VORTEX BAFFLE C. The PRIMARY
VARIABLE FLOW BAFFLEG is also adjustable for varying exhaust
flows along the length of the extractor. The sloping VORTEX
BAFFLE C drains the collected liquid grease to the end of the
ventilator and into the grease trough.
The exhaust air continues into the secondary extraction chamber,
which contains an additional baffle, F. Residual grease is
deposited on the secondary baffle as the exhaust air gyrates
through the secondary chamber. After leaving the secondary
chamber the exhaust air enters the ventilator fire damper and duct
collar and discharges into the exhaust ductwork.
Type “H” Extractor
Figure 14
