Natural Draft Cooling Tower is an open direct contact type heat exchanger where hot water from system or condenser gets cooled by direct contact with fresh air. In Natural Draft Cooling Tower, air flow is obtained by pressure stack effect. When there is a large pressure difference between the outside air and air within the structure. Supertech's Natural Draft Cooling Towers are carefully engineered from spray system to basin to provide economical operation, maximum performance and very low maintenance cost. Performance starts at the top of the spray system design which assures maximum cooling capacity per cubic foot of tower volume. Complete utilization of tower area is achieved by test and experience to assure the most effective cooling performance.