Design integrity – design flexibility – SPX Cooling Technologies Mechanical Draft Cooling Tower Class 800 User Manual
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/ Design Integrity – Design Flexibility /
The Marley Class 800 counterflow concrete cooling 
tower has proven itself as one of the most efficient 
and reliable cast-in-place designs in the world. The 
introduction of the Precast 800 version is a logical 
design evolution taking advantage of increasingly 
available quality precast production facilities.
Locally-produced concrete components keep work 
in the country of origin, provide better dimensional 
control, and greatly enhance scheduling by virtue of 
concurrent construction capability.
Making good on our commitments for over 
75 years 
Each Marley concrete cooling tower is analyzed 
and designed by our engineers who collectively 
have over 200 years of product history. 
When Marley cooling towers require periodic 
inspection, they can be serviced by the same 
engineers who originally designed them—
professional engineers who are dedicated to the 
special requirements of concrete tower design.
The environmental choice
Class 800 towers are hurricane and typhoon 
resistant by virtue of mass, and concrete defies 
the detrimental effects of heat and ultraviolet light.
Concrete is a natural material which is ideally 
suited for long service life in the harshest 
cooling tower environment. And concrete will 
never degrade the quality of cooling water 
circulating through the tower.
8 Cell Medical Center HVAC system
Unobstructed Marley counterflow fill installation
