Delta’s DPC-70 series comprises Pultruded FRP Induced Draft Counter flow cooling towers. These high-strength field erected Cooling Towers have excellent corrosion properties. Made from FRP pultruded sections and FRP sheets, the series DPC-70 is the best choice for large capacity cooling towers in HVACR, Pharmaceutical, Food and Beverage and cement Industry. In addition to strength and performance, they are environmentally safe and aesthetically pleasing.

Series DPC-70 employs the counter flow principle of operation. The name "Counter flow" refers to the way the air flows across the fill media. Fan mounted at the top of the tower, pulls the air vertically upwards through the fills in an opposite counter flow direction. The series provides a reliable and efficient cooling solution for industrial and HVACR applications where strength, performance and efficiency are essential.

Structural components of the tower are made up of tough Pultruded FRP sections. They can withstand exposure to saltwater, chemicals, and UV radiation. They are also resistant to bacteria and other microorganisms, making them ideal for use in many industrial applications. These towers are suitable for treated water and moderately polluted water.

Casing is made of tough corrugated FRP sheets developed through hand lay-up process. These wall panels are light in weight and enhance the architectural appearance of the cooling tower. The roof deck has a non-skid surface and is able to withstand the weight of chain pulley or dolly’s wheels carrying a motor or gear box. Pultruded square sections are used to support the 4 feet high PVC honeycomb or trickle fills of cooling towers. The design offers reduced pressure drop, non-fouling ability and maximum strength. The hot water distribution system consist of pressurized piping and nozzle system. The hot water is fed to PVC headers at the top of the tower which is connected to equally spaced horizontal branch pipes via vertical droppers and spray nozzles. The design pattern ensures uniform distribution of water across the fill area. The polypropylene spray nozzles can be installed or replaced very easily. Drift eliminators are used to reduce carryover from the cooling tower. Special design drift eliminators dramatically reduces drift losses while offering a low resistance to air. They are made from extruded PVC “C” section.

The mechanical system consists of axial type FRP fan blade with adjustable pitch connected to a speed reducer gear box with minimum service factor of 2.0. The gear box is coupled to motor through a non-overloading fully floating drive shaft with flexible steel couplings on both ends. The drive shaft is available in composite material or hot dip galvanised mild steel. The horizontal foot mounted motor is kept out of the air steam. The motors are totally enclosed fan cooled type, IE2/IE3 efficiency with IP-55 protection and Class F insulation. Other options are also available on additional price.

Advantages of Pultruded FRP Cooling Towers: DPC-70