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Hollow Type Axial
Fan
Airfoil-shaped hollow blade fans are made from Aluminum extrusion alloy.
Fan hubs are fabricated from hot-dip galvanized (HDG) circular plate with epoxy
coated cast iron core and Aluminum blade camps. The fan blades are adjustable in pitch
to allow for maximum utilization of rated horsepower and optimum performance.
High efficient lower tip speed and light weight design ensure low power consumption
and low noise level, thus and guarantee 100% performance. |
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Transmission
System
The fan motors are TEFC type with IP55 weather proof,
Class E insulation. Fans are driven by vee belt and the speed
can be adjusted by changing pulleys to meet different requirement.
By locating the motor on top of fan stacks, the vee belt lengths
are shorthen thus ensure linger belt life. Motor mounted in the
outside air stream and with gear driven system are also available
upon request. |
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Distribution System
Open gravity fed water distribution basins with removable cover
are made of Stainless Steel (SS304 or SS316) and are designed
for non-clogging operation and ease of inspection.
Special design diffusion decks are placed on top of
filler as a re-distribution layer to ensure full coverage of filler. |
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High Efficient Filler
Fillers are vacuum formed of 0.4mm (1/64”)
thick PVC film. Filler sheets configuration
incorporates sloped flutes in both air intake
and outlet sections and are high efficient
wet deck media. The honeycomb shaped air intake
louver section contributes minimum resistance
to airflow and prevents ingress of foreign
matters. The sloped flutes in the outlet section
of filler sheets act as the primary drift
eliminators to reduce droplets escaping through
the exhaust air stream. Primary drift eliminat
or ensures drift loss less than 0.005% of
circulating water flow. The wet deck media
with continuous triangular pattern is specially
designed to provide maximum air/water contact
and lower resistance ensuring high efficient
heat transfer. |
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Casing Panels and Cold Water Basin
Casing, basins and fan stacks are made of
FRP. The smooth and attractive gel-coat is
applied on exterior surface for UV protection,
chemical resistance and long life. It is light
in weight and makes easier for assembly and
transportation. Hot-dip galvanized (HDG) or
all Stainless Steel (SS304 or SS316) casing
and basins instead of FRP are also available.
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Sump Tank
FRP cold water sump tanks contain all connection
fittings and make inspection or maintenance
of fittings easier. Depressed sump tanks provide
basin depth and less chance of pump cavitation.
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Steel Structure
All supporting steel members are hot-dip galvanized
(HDG) to minimize rust forming and corrosion ,
ensuring long service life. Stainless steel (SS304 or SS316) hardware members are also available upon request. |
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Inspection Door
Inspection door is furnished to provide convenient
access to the interior for inspection, maintenance,
adjustment of float valve, cleaning of the
lift-out strainer and flushing of the basin |
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Perimeter Handrail and Safety Caged Ladder
HDG sturdy and stable perimeter handrail on top of tower
and caged ladder provide safety access and walkway for maintenance
and inspection. Stainless steel handrail and ladders are also available. |
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