SPX Cooling Technologies Marley Sigma Steel specifications Specifications, Specification Value

Marley / Sigma Steel CoolingTower / Specifications: Base

Specifications Specification Value

16

5.3Motor shall be located outside the fan cylinder at the fan deck, and shall be connected to the speed reducer by

a tubular stainless steel, dynamically balanced driveshaft equipped with neo- prene flexible coupling elements.

5.4A galvanized oil gauge and drain line shall extend from the gear reducer to the vicinity of the motor, and shall be equipped with a dip stick for oil level measurement.

5.5The complete mechanical equipment assembly for each cell shall be sup- ported by a rigid, unitized support that resists misalignment between the motor and the gear reducer. Support shall be heavy-wall tubular steel, to which heavy plate platforms for the motor and gear reducer have been welded and the assembly shall be hot- dip galvanized after fabrication. The support assembly shall also provide an inlet connection for incoming hot water, and shall serve as a crossover pipe to deliver water to both sides of the tower.

5.6The mechanical equipment assembly shall be warranted for no less than five

(5) years. This warranty shall cover the fan(s), speed reducers, driveshafts and couplings, and the unitized supports.

■The driveshaft turns at the motor speed and is, therefore, most sensi- tive to operational imbalance. Stainless steel manufacture assures that the driveshaft will not become unbalanced as a result of corrosion.

■Fans of the size used on large cooling towers are applied at speeds and horsepower that generate considerable torque—and structural tubular steel resists this torque very effectively. Marley torque-tube assures that all of the mechanical equipment remains aligned, and that the rotating fan is properly positioned within the fan cylinder.

■The value of a 5 year mechanical equipment warranty speaks for itself. Except for the motor, all of the mechanical equipment on a Marley tower is made by SPX Cooling Technologies. Cooling tower vendors who purchase commercial fans, gear boxes, driveshafts, etc. may require that you deal directly with those commercial suppliers for war- ranty satisfaction.