SPX Cooling Technologies Marley Reflex RTM - Manual (Page 2)

/ Marley Reflex RTM Fan Cylinder /
Reflex RTM fan cylinder with access hatch opening Access hatch designed for ease of use and sufficient
size to allow removal of mechanical components
The RTM process has smooth texture on the
interior as well as a smooth gel coat surface
on the exterior
The fan cylinder does far more than
protect operating personnel from a
rotating fan. It is a vital link in the chain
of critical components that contribute to
the overall efficiency of the cooling tower.
When correctly designed, manufactured
and applied, it assures that the fan will be
capable of moving the maximum amount
of air through the tower at the minimum
required horsepower. Poorly designed or
utilized, it contributes virtually nothing to
the fan’s capability and, in some cases,
can be more of a hindrance than a help.
Velocity recovery, particularly in large fan
cylinders, is vital to overall fan efficiency.
It is accomplished by a gradual increase
in the diameter of the fan cylinder above
the fan. This reduces the throughput
velocity of the air—relieving the fan of the
unproductive work required to maintain
an unnecessarily high level of kinetic
energy in the exiting air stream. Specify a
maximum flare angle of 12° for recovery
cylinders. Specify a maximum assumed
velocity recovery of 75% of the difference
in average velocity pressure, unless
scale model data for the exact fan and
cylinder system can be submitted. Specify
a removable access hatch of sufficient
size to allow removal of all mechanical
equipment components.
Marley Reflex RTM fan cylinders have all
the dimensional and airflow characteristics
of legacy Reflex cylinders, which allow
segments to be intermingled with legacy
parts on partial cylinder replacements.
SP-RTM
7401 WEST 129 STREET | OVERLAND PARK, KANSAS 66213 UNITED STATES | 913 664 7400 | [email protected] | spxcooling.com
In the interest of technological progress, all products are subject to design and/or material change without notice.
©2008 SPX Cooling Technologies, Inc. | Printed in USA