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| Click on any of the indicated areas to the left for details on that specific part. |
| 1. FAN SCREENS |
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| The fan screens are galvanized steel mesh. |
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| 2. FANS |
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| The axial propeller type fans are constructed of an aluminum alloy and statically balanced. The fan is installed in a closely fitted galvanized steel cowl with venturi air inlet. |
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| 3. DRIFT ELIMINATORS |
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| The eliminators are constructed entirely of Polyvinyl Chloride (PVC) in easily handled sections. The design incorporates three changes in air direction and limits the water carry-over to a minimum of 0.001% of the circulating water rate. The lightweight PVC eliminators are easily removed for access to the water distribution system. |
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| 4. WATER DISTRIBUTION SYSTEM |
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| The spray headers and branches are constructed of Schedule-40, Polyvinyl Chloride pipe for corrosion resistance. The water is distributed by precision molded ABS spray nozzles with large orifice openings to eliminate clogging. Nozzles are threaded into the spray header to provide easy removal for maintenance. |
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| 5. COIL |
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| The patented Thermal-Pak coil is all prime surface steel, encased in steel framework with the entire assembly hot-dip galvanized after fabrication. It is designed with sloping tubes for liquid drainage and tested to 350 psig air under water. The Thermal-Pak design results in maximum heat transfer efficiency and minimum pressure drop. |
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| 6. WATER RECIRCULATION PUMP |
| Closed circuit coolers and evaporative condensers are supplied with a vertically installed close-coupled centrifugal pump with a mechanical seal installed to drain on shut down. The totally enclosed, fan cooled (TEFC) motor is provided with a protective canopy as standard. |
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| 7. MAKE-UP FLOAT VALVE ASSEMBLY |
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| This assembly contains a brass float valve with an adjustable plastic float. The supply of makeup water entering the unit is easily regulated by adjusting wing nuts on the threaded float rod. |
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| 8. PAN STRAINER |
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| The type 304 stainless steel strainer is constructed with large removable perforated screens to reduce the need for frequent servicing. |
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| ACCESS DOORS |
| 9. Direct Drive |
| G235 hot-dip galvanized steel circular access door(s) are in the upper casing for easy access to the fan motor and water distribution system. |
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| ACCESS DOORS |
| 10. Belt Drive |
| G235 hot-dip galvanized steel rectangular access door(s) are in the upper casing for easy access to the fan drive and water distribution system. |
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| 11. LOUVERS |
| The lightweight louvers are constructed from Polyvinyl Chloride (PVC) and are easily removed by simply removing two fasteners on the louver assembly. Louvers are located on all 4 sides of the unit, thus providing easy pan access from 360 degrees. The two-pass design effectively eliminates splashout, keeps debris out of the pan and blocks out sunlight, thereby reducing the potential for algae formation and costly water treatment programs. |
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| FAN MOTOR |
| 12. Direct Drive |
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| Totally enclosed, fan cooled, ball bearing type electric motors with 1.25 service factor are standard. |
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| 13. FAN MOTOR |
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| Belt Drive (12', 14' and 24' wide towers) - Totally enclosed, air over, ball bearing type electric motors with 1.15 service factor are standard. The motor is mounted on an adjustable base allowing the motor to swing to the outside of the unit for easy servicing. |
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| Belt Drive (8-1/2’ wide towers) – Totally enclosed, fan cooled (TEFC) ball bearing type electric motors with 1.15 service factor are suitable for outdoor service. The motor is mounted externally on the unit with an adjustable motor base for ease of service. A hinged protective cover shields the motor and sheave from the weather. |
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| 14. FAN SHAFT |
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| All belt driven units have a solid shaft of ground and polished steel. The exposed surface is coated with a rust preventative. |
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| 15. FAN SHAFT BEARINGS |
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| All belt driven units have heavy-duty self-aligning ball type bearings with grease fittings extended to the outside of the unit. Bearings are designed for an L-10 life of 75,000 to 135,000 hours, making them the heaviest duty pillow block bearings available for cooling tower duty. |
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| 16. FAN Drive |
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| Direct Drive - The fan is mounted directly on the motor in a direct drive configuration. |
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| 17. FAN Drive |
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| Belt Drive - The fan belt is a multi-groove, solid back, reinforced neoprene V-belt type with taper lock sheaves designed for 150% of the motor nameplate horsepower. The fan sheave is constructed of an aluminum alloy. The fans and fan sheaves are mounted on the shaft with a special cadmium plated bushing for maximum corrosion protection. Belt adjustment is easily accomplished from the exterior of the unit. |
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| 18. FILL |
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| The Polyvinyl Chloride (PVC) fill with a cross-fluted design provides maximum heat transfer efficiency. The PVC sheets are bonded together for strength and durability. The fill is self-extinguishing for fire resistance and has a flame spread rating of 5 per ASTM E 84-819. It is also resistant to rot, decay and biological attack. |
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