SPX Cooling Technologies Marley Sigma Wood CoolingTower 1000 Brochure
Cooling tower
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- Engineering data & specifications (32 pages)
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Summary of Contents for SPX Cooling Technologies Marley Sigma Wood CoolingTower 1000
- Page 1 Marley Sigma 1000/1200 Cooling Tower...
- Page 2 / The Marley Difference / You’ll enjoy single source responsibility and reliability because we design and manufacture virtually all major cooling tower components. All Marley components are designed and selected to be part of an integrated system. For example, the spray pattern from nozzles and the pressure drop through drift eliminators both affect a fill’s heat transfer capacity.
- Page 3 • Efficient Field Assembly. Precise factory fabrication assures that every component in your Sigma tower will fit as designed. And SPX Cooling Technologies offers an unparalleled nationwide construction organization to build your tower quickly and economically. Series 1000 Cross-Section • Low Operating Costs.
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Page 4: Construction And Components
/ Construction and Components / 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. - Page 5 Mechanical Equipment You’ll receive a 5-year warranty against failure of any mechanical component in the fan drive system (except the motor, which is warranted by its manufacturer). The Marley Geareducer speed reducers used in the Sigma line contribute a long record of dependability, long service life, and low maintenance to this assurance of reliability.
- Page 6 / Construction and Components / Water Distribution System The gravity-flow water distribution system designed into the Sigma tower essentially reduces pump head to its most basic component – static lift – saving you money on pump power. You won’t have to force water through internal piping and pressure spray nozzles, as you would in a counterflow tower.
- Page 7 The 4" x" 4 tower diagonals carry loads to heavy- duty hot-dip galvanized steel anchor plates or hot-dip galvanized anchor weldments. The system of longitudinal and transverse diagonal bracing provides stability in a true tension-compression design. All structural framing connections use 1/2" dia. galvanized machine bolts with either fiber-reinforced nylon shear connectors or FRP connector straps.
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Page 8: Available Options
/ Available Options / Accessory Description and Remarks Plywood Cold Water Pressure-treated Douglas fir plywood collection Collection Basin basin for towers located above grade. See page 11. Bottom-Outlet Sump Square-plan galvanized steel sump with bottom outlet. Outlet connection is a hole and bolt circle conforming to 125# ASME pipe connection. - Page 9 Cell Partition Options Every Sigma tower includes plenum chamber partitions and hot water distribution basin partitions between adjacent cells. Plenum partitions ensure consistent thermal performance as you shut off one fan at a time. They keep air from entering an operating cell through an adjacent idle fan, maintaining efficient thermal performance.
- Page 10 / Special Component Options / Fire Protection Options The PVC fill, louvers and drift eliminators used on Sigma towers are fire-retardant, having flame spread ratings less than 25 per ASTM E-84. Standard fan decking material is pressure-treated fir plywood which ignites poorly and burns slowly.
- Page 11 Cold Water Collection Basins If you plan to locate your tower above grade, a treated Douglas fir Marley cold water collection basin is available, complete with the necessary operating accessories. The basin floor is exterior grade, pressure-treated fir plywood, supported on joists. Basin sides are plywood, machined to fit the basin floor, providing a water-tight joint after sealing.
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Page 12: Additional Services
/ Additional Services / SPX Cooling Technologies is dedicated to satisfying the needs of our customers—needs which begin far in advance of the actual purchase of a new Marley cooling tower, and vary over the operating lifetime of the project. Here is a partial listing of the additional services offered by SPX Cooling Technologies to help you do your job most effectively: Services—Sales Engineers are...