Product Description
Short Stem, Long Stem, Sigma Spiral Target Nozzle for Cooling Tower, originally designed by Marley, is a high-efficiency water distribution system used in crossflow cooling towers. It serves as a replacement for ceramic metering orifices in the hot water distribution basins of cooling towers and eliminates the need for water diffusion plates below the basin. The nozzle is engineered to effectively disperse water across the fill area, ensuring optimal cooling tower performance.
Design and Functionality
The Spiral Target nozzle consists of two primary components: an injection-molded polypropylene body and an integrated target diffuser. The bottom section of the nozzle, commonly referred to as the "daisy," features six blades designed to efficiently break up the water flow. This action ensures the water is evenly distributed over the fill area, maximizing the heat transfer efficiency of the cooling tower.
One of the key features of the Short Stem, Long Stem, Sigma Spiral Target Nozzle for Cooling Tower is its adjustable orifice cap. The orifice cap comes in 13 different diameters ranging from .362 inches to 1.099 inches. This wide range of sizes offers exceptional flexibility in adjusting water flow rates and basin water levels to suit a variety of cooling tower applications. The ability to customize the nozzle ensures it can meet specific operational requirements for different types of cooling towers.
Three Length Options
The Spiral Target spray nozzle is available in three different lengths, each designed for specific applications:
- 1. 2.625 inches: This nozzle length is typically used in wood, steel, and fiberglass cooling towers where the basin support structure does not obstruct the release of water. It is ideal for applications where the water distribution is unobstructed and can cover the entire fill area.
- 2. 4.875 inches: Designed for larger industrial cooling towers made of wood or concrete, the 4.875-inch nozzle is suitable for applications where clogging might be a concern. This longer length ensures reliable water distribution even in challenging environments.
- 3. 6.875 inches: This nozzle length is used in cooling towers where the release of water must clear obstructions within the tower's structure. It is perfect for installations where there are structural barriers that could interfere with water flow, ensuring that the water reaches the fill area effectively.
Installation and Adjustment
For optimal water distribution, the target portion of the Spiral Target spray nozzle should be positioned at the correct distance above the top of the cooling tower fill. This ensures maximum water coverage over the fill area, enhancing the cooling tower's efficiency.
The spray nozzle's flexibility in design and size makes it a versatile solution for cooling towers of various sizes and types. The Spiral Target nozzle can be easily installed in Marley crossflow cooling towers and can also be adapted to other crossflow cooling towers, regardless of the tower's age or manufacturer. This adaptability allows the nozzle to be integrated into a wide range of existing systems, providing an effective and efficient water distribution solution.
Specifications and Features
- 4. Material: The Spiral Target nozzle and its orifice cap are made from inert injection-molded polypropylene, ensuring durability and resistance to corrosion in harsh environments.
- 5. Single Component Design: The nozzle is a single-piece assembly with no moving parts, reducing the potential for mechanical failure.
- 6. Metering Hole: Each nozzle includes an additional metering hole, and the size of the hole is customizable to match the cooling tower's water flow requirements.
- 7. Symmetrical Layout: The nozzles and metering holes are arranged symmetrically both longitudinally and transversely to ensure even water distribution.
- 8. Gravity-Flow Operation: The removable and replaceable nozzles, when installed at the basin's bottom, use gravity flow to provide full coverage over the fill area, ensuring efficient cooling tower operation.
Conclusion
The Spiral Target spray nozzle is an essential component of Marley’s crossflow cooling towers, providing efficient and reliable water distribution for various industrial and commercial applications. With its wide range of sizes, adjustable orifice cap, and easy installation, the Spiral Target nozzle offers flexibility and performance that meets the diverse needs of cooling tower systems. Whether used in new installations or as a replacement for existing nozzles, the Spiral Target nozzle ensures optimal performance and energy efficiency in every application.
