• Drift Eliminators

  High efficiency drift eliminators constructed of an inearth polyvinyl chloride (pvc) or galvanized steel are assembled in sections for easy removal for access to the inner parts of the cooling tower. Some vee-belt driven towers motors are mounted on a hinged frame to swing out through the access door. The drift loss is limited to 0.001% of the recirculating water rate.

  Wet Deck Surface

• Specific cooling tower fill is used, depending on the water quality, temperature and cooling application and is designed to induce highly turbulent mixing of the air and water with a low pressure drop. High-efficiency cross corrugated fill constructed of pvc or polypropylene sheets is used to ensure maximum thermal capacity. In the case of high levels of suspended solids, a vertical fluted (splash tube) fill is used for industrial applications to ensure optimum thermal performance.

• Water Distribution System

  Even water distribution is obtained by corrosion-resistant PVC pipes feeding ABS large-orifice nozzles. Rubber grommets are used to hold the branches and nozzles in position allowing for quick and easy removal. Different types of nozzles are available to suit the water quality.

• Sump, Cold Water Basin

  The sump is normally constructed of heavy gauge galvanized steel, FRP or 316 SST in some cases and is fitted with an anti-vortex strainer for the tower outlet.

• Water Make-up Assembly

  A brass mechanical make-up valve and arm with a PVC float ball and an adjustable. threaded rod with retaining wing nuts is normally supplied as standard.

• Side Air Inlet Louvre

  Air-intake louvers incorporate two changes in air direction to avoid water splash-out and to block out sunlight. The louvre sections are easily removable, providing easy access for inspection and or maintenance.

4) OPTIONAL TOWER ACCESSORIES

DRIVE TRAIN ALTERNATIVES

• Self-tensioning Motor-base 

  Self-adjusting motor-basses can be fitted as an optional extra whereby the self- tensioning motor-base continuously compensates for the stretching, fluttering and excessive pull of the drive belt which occurs at start up. This assures optimum tension thereby increasing the drive efficiency and prolongs the life of the drive belt.

• Gearbox Option 

  As an alternative to the belt drive, an inline gearbox directly coupled to the fan motor can be fitted.

• Low Sound Operation

•  

• Electronic Water Level Controller 

  This electronic water level control package replaces the usual mechanical make-up when a more precise water level control is needed. It consists of a water level sensor fitted in the sump and an electric solenoid actuated valve in the make-up water line.

• Sump Heaters 

  At low ambient temperatures sump heaters can be used to maintain the sump water at a required temperature. This package includes the heaters, a thermostat and a low level cut-out switch to protect the heaters if the water levels are too low and is also used to protect the water in the sump from freezing.

• Vibration Cut-out Controller 

  A factory mounted vibration cut-out switch can be installed onto the tower to protect against equipment failure due to excessive vibration of the mechanical parts.

• Variable Frequency Drive 

  This option provide an effective method of capacity control on the cooling tower by using a variable frequency drive with a closed loop feedback system where the leaving water temperature is the control parameter provides an efficient and durable method of varying the airflow through the cooling tower. It also enables soft starts, stops and smooth accelerations which prolong the life of the mechanical drive equipment.

• Two-Speed Fan Motors 

  Another alternative way of capacity control and energy saving is the fitment of a two- speed motor in place of the standard single- speed motor. Depending on the speed reduction ratio, the lower speed will be able to deliver a substantial portion of the cooling capacity at a small fraction of the total absorbed power.