WST Series
WST Series Cooling Towers
WST Series Cooling Towers are square-shaped, high-efficiency cooling systems designed to deliver reliable and uniform performance across a wide range of industrial and HVAC applications. Constructed with durable fiber-reinforced plastic (FRP), these towers offer excellent resistance to corrosion, weather conditions, and long operational life.
The WST series features a fixed header water distribution system equipped with non-clogging spray nozzles, ensuring even water flow over the PVC fill media for maximum heat transfer efficiency. Its modular fill design, efficient drift eliminators, and energy-saving induced draft axial fans contribute to low operating costs and minimal water loss.
With a compact structure, easy maintenance, and robust performance, WST Series Cooling Towers are an ideal solution for consistent and efficient cooling requirements.
Spares and Components of WST Series Cooling Towers:
Casing
The tower casing is made of tough fiberglass reinforced plastic (FRP) and has sufficient structural strength to withstand high wind velocities and vibrations. UV-stabilized resin is used with gel coat for longer life. It is resistant to local impact, and even if slight damage occurs, local repairs can be easily done. The portion of casing housing fill and eliminator has a round cross-section in WRT series and square in WST series. The water collection sump (optional), also of FRP, is leak-proof and avoids water spillage.
Fills
The fill is rigid Polyvinyl Chloride (PVC) and is of honeycomb design with very large contact surface area. The fill splits air and water into several streams, increasing contact time and improving heat transfer between water and air. The fill is in module form and packed in the tower casing without any curves. Air pressure drop through the fill is negligible. Fills are available with flute heights of 12 mm and 19 mm, with sheet thickness from 0.15 mm to 0.20 mm. Optional trickle fills made of premium quality PP material are also available, offering a combination of: Film fills (for thermal efficiency) Splash fills (for resistance to fouling) These are suitable for applications where water quality is poor with high suspended solids, reducing clogging and fouling.
Axial Fans
Specially designed energy-efficient induced draft axial fans with adjustable pitch are used. Materials are non-corrosive such as plastic, FRP, or aluminum alloy.
High-efficiency design ensures low running cost and minimal noise. Fan blades are dynamically balanced.
Motors
Special-purpose induction motors used in cooling towers are totally enclosed, flange-mounted with extended shafts. Specifications: 415V 50 Hz 3-phase ‘F’ class insulation High-efficiency motors (IE2 & IE3) are available as optional upgrades.
Drift Eliminator
Specially designed eliminators supported by a galvanized frame to minimize water drift losses.
Fixed Header Pipe System
Fixed header system is made up of non clogging, thick PVC pipes further coated with FRP in WST series requires low pressure to operate and assure uniform water flow with minimal operating head through spray nozzles incorporated in the system which are made from best grade of polypropylene.
Nozzles
Inlet Louvers
Supporting Structure
Tower supporting structures are fabricated from mild steel angles, channels, rods, and pipes, all hot-dip galvanized for corrosion protection and longer life. Optional: FRP pultruded profile structures can replace MS galvanized structures. These include FRP pultruded angles, channels, and pipes, offering strong, corrosion-proof solutions for cooling tower structures.
FRP Casing Panels (Square Structure)
Strong, corrosion-resistant FRP panels forming the square-shaped tower body, replaceable in sections.
PVC Fills
Rectangular PVC fill modules with high surface area for efficient heat transfer. Easy to remove, clean, and replace.
Spray Nozzles
High-quality polypropylene nozzles designed for uniform water distribution with low operating pressure and non-clogging performance.
Fixed Header Pipe System
Fixed header system is made up of non clogging, thick PVC pipes further coated with FRP in WST series requires low pressure to operate and assure uniform water flow with minimal operating head through spray nozzles incorporated in the system which are made from best grade of polypropylene.
Drift Eliminators
Specially designed drift eliminators supported by galvanized frame are for minimizing the drift losses of the water as per shape
Air Inlet Louvers / Mesh
PVC/FRP louvers that prevent entry of dust, debris, and contaminants while maintaining proper airflow.
Axial Fans
Induced draft axial fans with adjustable pitch blades, designed for high efficiency, low noise, and balanced operation.
Fixed Header System
Compulsory
Sprinkler System
Not Required
Cold Water Basin
Leak-proof basin for collecting cooled water and ensuring smooth recirculation.
Support Structure Components
Hot-dip galvanized steel framework (angles, channels, rods) for strength, durability, and corrosion resistance.
