Coward Environmental Systems Inc. (CESI) recently expanded its portfolio of industrial cooling solutions with the addition of Delta Cooling Towers, a U.S. manufacturer known for durable, energy-efficient cooling towers built from high-density polyethylene (HDPE). Headquartered in New Jersey, Delta also operates manufacturing facilities in West Virginia. Since 1971, Delta Cooling Towers has been solving many of the reliability issues that plague traditional steel cooling towers. Recently, Delta’s unique set of benefits has resulted in a marked increase in customers dealing with extremely harsh manufacturing environments. That’s why more and more commercial HVAC applications are finding that Delta Cooling Towers are a perfect fit for demanding applications.
Corrosion-Proof Cooling Tower Construction
Traditional cooling towers are commonly constructed from steel. While widely used, steel towers can develop problems over time, particularly in demanding industrial environments. Delta Cooling Towers approaches the challenge differently.
“We manufacture cooling towers out of high-density polyethylene,” explains Eric Vartanian, National Sales Manager at Delta Cooling Towers. “This eliminates many of the common issues you see with steel towers, such as rust and corrosion, that develop at metal seams or bolted joints.”
Unlike traditional towers that rely on multiple panels fastened together, Delta towers feature one-piece molded construction in key areas. “Our tower shells are seamless,” Vartanian adds. “That means we don’t have the leaking issues that are common with steel towers, where seams eventually crack and need to be resealed.”
Built for Harsh Environments
Because HDPE is inherently resistant to corrosion, Delta towers perform especially well in environments where traditional materials struggle. Production plants, coastal facilities, and chemical processing environments frequently expose cooling equipment to harsh conditions.
“In highly corrosive environments, we’re often replacing steel towers that have failed or deteriorated over time,” Vartanian says. “HDPE eliminates concerns related to rust and material degradation, which is why our towers have gained strong traction in industrial facilities.”
Healthcare facilities have also become an important application for Delta cooling towers. Hospitals depend on continuous cooling for critical systems, and downtime can be costly or even dangerous. Vartanian notes, “Reliability is essential in healthcare environments, and our towers provide a dependable solution with lower maintenance requirements.”
Delta even offers antimicrobial cooling tower options, helping facilities manage biological growth in sensitive applications.
A Case Study in Efficiency and Energy Savings
Durability is only part of the story. Delta cooling towers are also engineered to reduce energy consumption through modular design and efficient airflow systems. A recent hospital project illustrates the advantages of this approach. After comparing multiple materials and tower designs, the engineers ultimately determined that Delta’s HDPE cooling towers delivered superior energy performance.
They made this decision after establishing that Delta’s modular design would allow the facility to stage tower cells based on cooling demand, reducing unnecessary power consumption during periods of lower load.
“Because the towers are modular, operators can scale them down when they’re not all needed,” Vartanian points out. “That can translate into significant energy savings.”
Each tower cell includes dual direct-drive fans powered by variable-frequency drives, allowing fan speeds to adjust automatically based on cooling requirements. “When the fan motors run at around 80 percent speed, you can save roughly 50 percent on power,” he adds. “Across multiple motors, those energy savings add up quickly.”
Faster Delivery and Straightforward Installation
Another advantage of Delta’s manufacturing model is flexibility in production and delivery. “Our standard lead times are typically around eight to ten weeks, depending on the model and configuration,” Vartanian explains. “But if a project needs equipment faster, we often have the ability to accelerate delivery.”
That capability stems from Delta’s long-standing practice of maintaining inventory of critical components. “In some situations, if the shells and motors are already in stock, we’ve been able to ship towers within a week or two,” he says.
Installation is also simpler than many traditional tower designs. “There’s significantly less field assembly compared to steel towers,” Vartanian says. “That helps contractors complete installations faster. Some Delta models arrive nearly assembled, while larger systems ship in modular sections that can be installed quickly on site.”
Longevity Backed by Decades of Performance
Delta’s durability claims are backed by decades of real-world performance. The company offers an industry-leading 20-year warranty, but many towers remain in service far longer. “We still have cooling towers operating from the 1970s,” Vartanian emphasizes. “That kind of longevity really demonstrates the reliability of the material and the design.”
In addition to durability, Delta towers are engineered for structural strength. Standard systems are wind-load rated up to 205 miles per hour without requiring additional structural steel.
Coward Environmental and Delta Cooling Towers
With CESI now representing Delta Cooling Towers, regional customers gain access to both the manufacturer’s technology and the distributor’s deep expertise in heavy-duty equipment.
We work closely with plant engineers, contractors, and facility managers to evaluate cooling system requirements and recommend the right tower configuration for each application.
For facilities looking to replace aging steel towers or design more efficient cooling systems, Delta’s HDPE cooling technology offers a compelling alternative that prioritizes durability, efficiency, and long-term reliability.
