Cooling Towers
— TM Series Induced Draft Towers

 TM Series Induced Draft Cooling Towers
 TM Series Induced Draft Cooling Towers

TM Series Induced Draft Towers

Our long history of innovation in the industry coupled with our recent product upgrades makes Delta the technology-leading cooling tower supplier in the United States.

Regardless of your need, Delta provides innovative cooling tower designs that last longer, save on costs, and eliminate downtime.

All of our products, including the TM Series Induced Draft Tower, are suitable for a variety of applications. The TM Series are available in standard tonnage such as 250 tons, 
300 tons, 400 tons, 500 tons, 600 tons, 750 tons, 1000 ton and beyond. Visit the product page for specific capacity measurements.

Choose the Best

Are you looking for a replacement for your industrial cooling tower or HVAC cooling tower? Delta sets industry practices with its superior products such as the TM Series Induced Draft Tower. Learn more about our TM Series Induced Draft Towers Today.

At Delta, high-quality and advanced manufacturing processes translate into an extended lifecycle. Delta’s TM Series™ induced draft, counterflow design are available in single unit capacities from 250 to 2,500 cooling tons. For more than two decades, the TM Series™ Induced Draft Towers have been incredibly well received in both commercial and industrial environments. And, the modular cooling tower design allows the isolation of cells for operational flexibility. Its energy efficiency leads the industry. 

Standard Features

Feeling frustrated by your cooling tower downtime or replacement needs? As one of the most highest-quality cooling tower manufacturers in the USA, we know how vital quick and reliable service is when it comes to keeping your cooling tower safe from the elements. That’s why highly efficient and environmentally friendly cooling towers take top priority in our business.

The industrial cooling towers offered to our customers ensure that they will never be stuck with a leaky, dangerous, or inefficient cooling tower while waiting for “business hours” to arrive. We believe that our clients deserve a cooling tower with nearly 100% uptime by design.

Basic Specs

Model  Group       Approximate Weights       DimensionsCapacity   (Tons)Fan Motor  (HP)Sump Capacity  (Gallons)
Shipping   Operating    L     x     W     x     Ht 
1 Cell 6,510 11,800 16.5'  x  8.5'  x  15.5'  250-425  10-30  480
2 Cell 13,020 23,600 16.5'  x  17.0'  x  15.5'  460-820 20-60 960
3 Cell 19,530 35,400 16.5'  x  25.5'  x  16.5' 700-1200 30-90 1400
4 Cell 26,040 47,200 16.5'  x  34'  x  '16.5' 910-1580 40-120 1920
5 Cell 32,550 59,000 16.5'  x  42.5'  x  16.5'     1120-2010 50-120 2400
6 Cell 39,060 70,800 16.5'  x  51'  x  16.5' 1340-2400 60-120 2880

Detailed Features

All Delta Cooling Towers are factory assembled to the fullest extent possible for ease of installation and shipment. The following features are standard to our TM Series™ Induced Draft Cooling Towers:

Shell: Shell is a seamless, double-wall, non-corroding, hi-impact high-density polyethylene (HDPE) of leak-proof design. Conical transition for motor/fan assembly with separate polyethylene velocity recovery stacks. The shell exceeds ¼” average thickness. The structural shell is capable of withstanding water temperatures up to 160°F on a continual basis. Between equidistant vertical ribs along the walls are pre-contoured sections that when coupled with the structural foam between the double walls, creates a pre-stressing that adds rigidity and overall structural strength of each cell.

Sump: Sump is a seamless, double-wall, non-corroding, hi-impact high-density polyethylene (HDPE) with a leak-proof design. The sump is sloped toward the outlet. Integral molded-in I-Beam support pockets allow placement on elevated I-Beams. Integral support posts 360° around the sump give support to the upper tower section and allows for mounting of louvered inlet panels for optimum air distribution.

Sloped “Clean” Sump Design: Each cell’s sump is molded to slope aggressively towards the center and a 3% slope towards a depressed sump box near the outlet. This limits settlement of any dirt, debris, or biological films and allows for complete drainage of the sump during planned shutdowns.

Water Distribution System: Totally enclosed, non-corroding, polyvinyl chloride (PVC) pipe with large orifice non-clog spray nozzle distribution system. Threaded nozzle orifices shall be interchangeable allowing substitution of larger diameter orifices for increased flow conditions without increasing inlet pressure.

Wet Decking: Rigid PVC film, corrugated and bonded for maximum cooling efficiency.

Fan Assembly: The fan assembly consists of a fan ring, propeller, motor, and guard. The fan ring is coated with premium plastic coating ideal for the harshest corrosive environments. An adjustable pitch propeller fan, fiberglass reinforced polypropylene with a silica alloy hub, is directly driven by a totally enclosed VFD Premium rated motor designed for cooling tower duty. A fan guard is included on the velocity recovery stack and allows protection from the propeller and access to the motor.

Motor: Totally enclosed air over (TEAO) VFD rated motor with 1.15 service factor, designed for 208 or 230/460V 3 phase 60 cycle operation and suitable for outdoor service. The motor is provided with a 5-year motor manufacturer's warranty. 

Fitting Connections: PVC fittings are provided for inlet, outlet, overflow, drain, and make-up connections at standard orientation locations. Orientation for special requirements is available for new and replacement installations.

Hardware: All fasteners are standard 304 stainless steel. Anchor and lifting lugs are aluminum.

Cutaway View

1 - Lightweight And Double Wall: Plastic is lighter than conventional cooling towers and an integrated double-wall is more than 10 times the average wall thickness of metal towers

2 - Leak Proof Sump: Molded as Unitary (One-Piece) Structure that has no joints to leak or require recaulking and sealing

3 - Self Supporting Plastic Base: Tower can be set on flat surface or on I-Beams placed in Integrally-Molded I-Beam Pockets for elevated installations

4 - Corrosion-Proof Shell: HDPE plastic Construction cannot corrode and is backed by 20 Year Warranty

5 - Drift Eliminator: Three pass PVC drift eliminator prevents water droplets from leaving the tower

6 - Nozzle Water Distribution System: Non-Clog, removable nozzles evenly distribute the water

7 - Fill Material: High efficiency PVC cellular design for maximum cooling

8 - Direct Drive Air Moving System: Totally enclosed VFD-rated cooling tower motors power multiple fiber-reinforced polypropylene axial propeller fans within a polyethylene velocity recovery stack


Commonly Asked Cooling Tower Questions

Why Choose Delta Cooling Towers?

Your cooling tower's safety is always top of mind at Delta Cooling Towers. As the technology leading cooling tower suppliers, we know that induced cooling tower problems leave your business can negatively impact your operations and environment.

Time means everything when it comes to cooling tower service needs. Our friendly team will keep you updated and informed every step of the way when a repair is needed. That is how we have earned our position as the technology leading manufacturer of cooling towers.

Get in touch today for solutions to all your induced cooling tower needs or to schedule a cooling tower inspection to prevent further headaches.

How Much Will It Cost To Replace My Cooling Tower?

The cost of a cooling tower replacement will depend on several factors including:

  • Heat Load served by tower
  • Location of tower necessitating crane size required
  • Anticipated future cooling tower loads

Please contact us today for a free estimate on your cooling tower replacement.

What Guarantee Does Delta Offer?

Delta’s induced cooling towers come with a 100% satisfaction guarantee. Our cooling towers are backed by industry best 20-year warranty.

How is Delta’s Customer Service?

Whether a passing storm has damaged your cooling tower, or it has suddenly given in after years of disrepair, Delta is here for you.

While a cooling tower issue can be a stressful event for building owners or plant engineers, our experienced professionals are here to help. We know exactly what to do in the event of any cooling tower incident such as damage from process irregularities, strong storms, lightning strikes, and animal activities.

Is a Range of Cooling Tonnage Available?

Our induced cooling towers have superior standardized design features and are available in single unit capacities with a range of cooling tower tonnage--from 250 to 2,500 cooling tons.

How Long is the Warranty?

Assembled in an American factory for easy installation, our induced cooling towers also come with a 20-year shell warranty. Besides this, we also offer a seamless double-wall engineered plastic (HDPE) shell with corrosion-proof construction and a direct drive fan system, no belts, or gear-drives to maintain or cause downtime.

Get a Cooling Tower Estimate

Searching for the perfect cooling tower design? Regardless of your need, Delta provides innovative designs that last longer, save costs, and eliminate downtime. Contact us now to get your free estimate today!


The Most Durable Corrosion-Proof Cooling Towers Available
corrosion proof cooling towers

Corrosion Proof & Seamless Cooling

Delta Cooling Towers contain one piece, shell or casing, eliminating issues with seams, welds, and patches. Because they are rust and corrosion proof, Delta’s Cooling Tower Systems endure longer lifecycles.

Cooling Towers Manufacturer Warranty

Low Maintenance
and 20-Year Warranty

Our overall maintenance is minimal and the tower shell does not require preventive maintenance which lowers cost and expensive downtime. The benefits are extraordinary!

water cooling sustainability


Water chemistries and engineered plastic cooling towers combined translate into an extremely effective solution to water conservation as well as cost savings.

quiet cooling tower systems

Low Sound &
Other Special Options

The noise pollution of commercial HVAC equipment has become an increasingly unwanted problem for communities. Delta Cooling Towers are unrivaled among other manufacturers in providing solutions.

USA and international company

Made in

The term “Made in the USA” speaks of quality, excellent craftsmanship, and a superior product. Delta ranks as the technology leader among cooling towers manufacturers in USA!

Get a quote

From our low maintenance design to our manufacturing process to excellent customer service, we're sure you'll be pleased with our superior cooling towers, every step of the way. Get a quote