REYMSA COOLING TOWERS, INC.
www.reymsa.com
The
All-Fiberglass
Cooling Towers
61
Operation
C.2 WATER DISTRIBUTION SYSTEM
Water distribution is accomplished by a non-rotating, low pressure spray nozzle system, designed to
provide a uniform water distribution for a specific flow rate (see Figure C-6). Take in account the following
recommendations:
▪ The operating flow rate of the Cooling Tower must be as close as possible to the design flow rate. A
different flow rate, whether is lower or higher, will affect the Cooling Tower performance.
▪ The normal operation range of spray nozzles is 2-10 psi. REYMSA recommends maintaining water inlet
pressure between 4-8 psi to achieve a proper water distribution. Operation below this range will cause
the nozzle to produce smaller than expected spray cone, lowering fill´s performance. Operation of the
nozzle above this range may cause flow-induced vibration, which can contribute to nozzle blowout from
the pipe adapter. Both conditions will negatively affect Cooling Tower performance. Never operate the
nozzle continuously at pressures over 10 psi.
▪ If a VFD is installed, set the VFD to control the Cooling Tower fan to the desired process water temperature.
▪ Never operate temperatures above the allowed level for each material; failure to do so may result
in damaged to the internal components. Refer to Table C-1 for the Maximum Continuous Operating
Temperatures of the materials REYMSA uses for its fill media.
Water Distribution System
Manifold
Spray Nozzles
Figure C-6: Water distribution system schematic drawing
Table C-1: Maximum Operating Temperatures for Different Fill Media
Materials
FILL MEDIA MATERIAL
MAXIMUM CONTINUOUS
OPERATING TEMPERATURE
PVC 140°F (60°C)
HPVC 150°F (66°C)
PP 175°F (80°C)
ALUMINUM > 175°F (80°C)
Operation at higher temperatures than temperatures shown on Table C-1
will damage the fill media.
CAUTION
Table C-2: Maximum operating pressure
WATER
DISTRIBUTION
SYSTEM
MATERIAL
MAXIMUM
CONTINUOUS
OPERATING
PRESSURE
PVC 10 PSI
Operation at pressure greater than 10 PSI may cause
improper operation and damage to the distribution system.
CAUTION
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