Water Distribution System

/ Construction and Components /

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.

Warm water enters the system through the Sigma galvanized crossover pipe. Inlet connections for your piping are standard 125# flanges. Marley flow-control valves balance the flow to both distribution basins of each cell. Water flows

from each valve through a splash-suppression chamber into the treated fir plywood distribution basin.

Polypropylene patented “Spiral Target” nozzles in the basin floor then distribute the water uniformly over the fill.

All materials in the water distribution system offer long life and minimal maintenance. Valves consist of cast iron bodies and grease-lubricated stainless steel operating stems. All plywood is treated exterior grade. The nozzles are chemically and biologically inert, so they’ll last indefinitely.

Structure and Materials

Sigma tower design conforms to the latest edition of the National Design Specification for Wood Construction (NDS) published by the National Forest Products Association.

Wind load criterion is normally 30 pounds per square foot of

projected area and the design meets 5%g seismic loading, based on a maximum water temperature of 120°F.

Pressure-treated Douglas Fir is the standard material for structural members in Sigma towers because it offers predictably consistent structural strength and provides long service life in cooling towers. Treated redwood structure

is available as an option. However, you will benefit in the long run from specifying redwood very selectively and very carefully.

Unless otherwise specified, all lumber – regardless of species – is pressure treated after fabrication. Lumber treatment is CCA, infused into the wood by the full-cell process to 0.40 lb/ft3 retention.

The primary structural elements of all Sigma towers are the 4" x 4" columns. Column bent lines occur on 4'-0" longitudinal centers.

1000, 1200 specifications

SPX Cooling Technologies, a prominent player in the cooling solutions market, is known for its cutting-edge designs and innovations in the field of cooling systems. Among its notable offerings are the SPX Cooling Technologies 1200 and 1000 series, which are engineered to meet the demands of various industrial applications.

The SPX Cooling Technologies 1200 series is renowned for its efficiency and robust construction. One of its main features is its modular design, allowing for easy installation and maintenance. This series is equipped with advanced cooling technology, enhancing energy efficiency while minimizing operating costs. The 1200 series utilizes a counterflow design, promoting improved heat exchange and a more direct airflow pattern. This results in higher thermal performance and reduced energy consumption, making it an ideal choice for operations that prioritize sustainability and cost-effectiveness.

On the other hand, the SPX Cooling Technologies 1000 series is tailored for versatility and reliability. This series boasts a design that accommodates a range of capacities and configurations, making it suitable for diverse applications, including HVAC, industrial processes, and power generation. One of the standout characteristics of the 1000 series is its handling of large thermal loads with minimal pressure drop, which ensures optimal performance in challenging conditions. Its corrosion-resistant materials enhance durability, making it resilient in harsh environments.

Both series incorporate advanced fan technology, which is designed to maximize airflow while minimizing noise levels. The fans are individually controllable, allowing for precise adjustments to meet specific cooling demands. Furthermore, these cooling towers are designed with user-friendly accessibility, simplifying maintenance and inspection processes, thereby reducing downtime.

SPX Cooling Technologies also places a significant emphasis on innovation. Both the 1200 and 1000 series are built with predictive maintenance capabilities, leveraging IoT technologies to monitor performance metrics in real time. This proactive approach enables facility managers to anticipate maintenance needs and address issues before they escalate into costly failures.

In summary, the SPX Cooling Technologies 1200 and 1000 series represent a substantial advancement in cooling technology, providing efficient, reliable, and modular solutions for various industrial applications. Their design, efficiency, and advanced features position them as leaders in the market, responding to the evolving needs of industries worldwide.