Cooling towers of dwn series from delta cooling towers pvt. Ltd comes with natural draught design. This tower ensures maximum transformation of heat from hot water to open air by bringing the both in contact under controlled condition. This tower provides excellent performance with low maintenance. There are various models of this tower to meet different demand. These towers starts from 5 tr capacity. Wood is used in this cooling tower to enhance the durability and protect from bacterial attack. The cooling tower is provided with suction pope, drain and overflow pipe and float valve. Working principle of the tower: the hot water distribution system is passed through a g.I. Pipe [header-pipe]. Which is firmly fitted with plastic spray nozzles, which spray the hot water down to the tank.