History » The 1960s

1960
Marley becomes publicly owned. The Series 15 Double-Flow Aquatower debuts.
1961
	Marley “tops out” the first hyperbolic natural draft tower in the United States.
Early 1960s
	Mechanical draft cooling towers are increasingly built as multi-cell installations.

1963
The Iso-Con evaporative condenser is introduced in March. Marley introduces the HCT tower in May followed by the 7100 Series HydroTower.
1964
The Marley Series 10 wood Double-Flow Aquatower is introduced in March. It is the first Applied Products field-erected tower to use molded fiberglass fan cylinders.
1965
The new Marley plastics plant in Olathe, Kansas is dedicated. Marley purchases the Marfab Company based in Pryor, Oklahoma.
1968
	The NC tower, the first crossflow design to use film fill, is introduced.
1969
The first air-cooled heat exchanger is built by Balcke for an industrial application.

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