1.1 Type

CTS incorporates an induced-draft counter-flow design with an axial flow fan mounted on top of the tower to draft air out.  The low internal pressure loss and circular-shaped design ensure optimum efficiency and space economy.

1.2 Casing

The F.R.P. (fiberglass reinforced polyester) is composed of fiberglass mat laminated from unsaturated polyester resin.  The high structural strength of the material protects the unit against impact and cracking.  Gel coat is then applied to form a smooth surface.

1.3  Water Basin

Also made of F.R.P. material.  The circular-shaped basin with a cylindrical suction sump (ST200-1000) keeps cavitation of the pump to a minimum.  A drain connection is provided for removal of accumulated dirt from the basin.

1.4 Tower Support Framework

(a) T-25 – T-2175:  The F.R.P. base legs are incorporated with the water basin in a single unit to withstand wind pressure and vibration.

(b) T-2200 – T-3000:  Provided with hot-dip galvanized steel to resist corrosion and rust.

1.5 Motor Support Framework

Made of hot-dip galvanized steel to resist corrosion and rust.

1.6 Air Inlet Louver

The P.V.C. plastic mesh is fitted on the air inlet to prevent foreign material from falling into the basin of water splashing out of the basin.

1.7 Filling

Made of rigid polyvinyl chloride sheet which is embossed and corrugated in a honeycomb configuration.  It provides maximum air-to-water contact for highest thermal efficiency.

1.8 Sprinkler Device

Consists of a set of sprinkler pipes and one sprinkler head that is mounted on top of the stand pipe on the cooling tower.  The sprinkler is rotated by the pressure of circulating water.  There are numerous holes in the sprinkler pipe to allow the water to jet out as the pump impacts rotation.

The speed can be controlled by adjusting the sprinkling angle in accordance with the water flow rate.  There are two types of sprinkler heads.

1. T-25 – T-260 (refer to figure 1):  The outer casing is made of nylon material; the sliding part is lubricated by the water.

2. T-270 – T-3000 (refer to figure 2):  The whole body is made of aluminum alloy and is fitted with sealed type bearings to take thrust and radial loads and to ensure that the sprinkler head revolves smoothly.

 1.9 Fan Blade

The cooling tower blades move large volumes of air quietly and efficiently.

1. T-25 – T-230:  Made of reinforced plastic material, the blades are coupled to the fan hub by bolts and paste.

2.  T-240:  Made of aluminum alloy, the blades are freely adjustable by the pitch angle scale of the fan hub.