SPX Cooling Technologies 1200, 1000 Construction and Components, Fill/Louvers/Drift Eliminators

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Fill/Louvers/Drift Eliminators

Marley high-performance film fill is the heart of every Sigma tower. A repeating chevron pattern provides the wetted surface and air turbulence necessary for proper heat transfer, while minimizing resistance to airflow so you’ll save on fan power. Molded protrusions on each fill sheet assure uniform spacing.

Fill sheets are vacuum formed 15 mil (.015") thick polyvinyl-chloride (PVC) capable of service at hot water temperatures up to 125°F. Stainless steel structural tubes resting in stainless steel hangers support the fill, and PVC tubes control alignment. Series 1000 fill includes two stainless supports, and Series 1200 fill uses four stainless supports. This system also holds the bottom of the fill sheets above the cold water basin floor to simplify basin cleaning.

Fill sheets include both louvers and drift eliminators. The louvers in this patented arrangement keep water on the fill sheets and in your tower, and also assure proper heat transfer throughout wide variations in airflow. Users find this fill operates ice-free even in extremely cold weather.

Integral drift eliminators prevent the costly nuisance of drift spotting on objects in the surround­ing­ environment. Their unique shape induces the air flow through three distinct direction changes as illustrated above. The final turn directs air toward the fan to save you fan horsepower. Moisture carried in the air stream can’t make these abrupt turns, so drift is 0.010% or less of the circulating water flow rate.

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