GOHL-KTK / GOHL Industrial Cooling Towers and Dry Coolers

German manufacturer GOHL-KTK GmbH (GOHL, Cofinair Group) designs energy-efficient open and closed cooling towers, hybrid fluid coolers, and adiabatic recoolers for industrial process water systems.

Open circuit cooling towers KAD

Open counterflow cooling towers GOHL-KTK (GOHL) series KAD combine axial induced-draft fans with direct heat exchange for industrial water cooling. The integrated stainless steel basin and compact housing ensure reliable fluid retention and mechanical rigidity during continuous operation.

Axial exhaust fans with aerodynamically shaped aluminum alloy impellers.
Integrated 2 mm stainless steel basin for continuous process water collection.
Direct heat transfer with uniform fluid distribution via low-pressure nozzles.
Compact envelope suited for rooftop and ground industrial installations.

Open crossflow cooling towers TMX

Crossflow cooling towers GOHL-KTK (GOHL) series TMX employ gravity water distribution through polypropylene nozzles and modular PVC fill packs. Side-mounted axial fans with low electric demand deliver close approach temperatures down to two Kelvin above wet-bulb ambient conditions.

Gravity open distribution basin without need for internal pump pressure.
Modular PVC film fill blocks designed for straightforward inspection access.
Galvanized steel Z-725 body protected with heavy-duty COFI-COATING finish.
Full-height walk-in access door for cleaning water basins and spray nozzles.

Energy-saving cooling towers ECube and DTC

Open cooling towers GOHL-KTK (GOHL) series ECube, DTC, and TMR-EC incorporate maintenance-free fan assemblies driven by electronical commutated EC motors exceeding IE4 efficiency. Continuous speed modulation reduces electrical power consumption by up to thirty percent.

High-efficiency EC fan assemblies featuring built-in electronic control.
Electrical energy reduction up to thirty percent with attenuated acoustic levels.
Dynamically balanced impeller wheels preventing harmful shaft vibrations.
Integrated motor protection eliminating external frequency inverter cabinets.

Closed circuit evaporative towers ERI

Closed circuit cooling towers GOHL-KTK (GOHL) series ERI with forced-draft fans isolate critical process fluid from ambient contamination and dust. Smooth-tube heat exchanger coils fabricated from galvanized steel or stainless alloys withstand operating fluid temperatures above 90 °C.

Sealed tubular heat exchanger preserving internal process fluid purity.
Forced-draft intake fans located in dry fresh air away from moist exhaust.
Stainless steel spray distribution piping with plastic hollow-cone nozzles.
Welded leak-tight stainless steel water basin with inspection access ports.

Hybrid industrial coolers KAHV

Hybrid cooling units GOHL-KTK (GOHL) series KAHV merge dry and evaporative heat rejection into a single footprint. In cold seasons the unit runs fully dry, while adiabatic spraying with purified water engages automatically at elevated ambient temperatures to wet the finned heat exchanger.

Dual-mode operation with automatic transition between dry and wet regimes.
Purified reverse osmosis water spray without biocide or chemical additives.
Sloped collection sump floor with two percent gradient for total drainage.
Internal walk-through maintenance gangway for safe coil inspection access.

Adiabatic coolers TOPAZ and CALOR

Dry coolers GOHL-KTK (GOHL) series TOPAZ with cellulose adiabatic pre-cooling pads lower incoming air temperature without wetting finned coils directly. Industrial CALOR recovery towers reclaim more than 1,000 kW of heat from moist industrial exhaust per 10,000 cubic meters of air per hour.

Cellulose pre-cooling pads reducing inlet air dry-bulb temperatures.
Electronically commutated fans managed via serial Modbus RS-485 communication.
Engineered variants for secondary coolants and industrial ammonia NH3 loops.
CALOR heat recovery towers extracting energy from humid industrial exhaust.

Fluid Dynamics and Counterflow Aerodynamics in KAD Cooling Towers

Open counterflow cooling towers GOHL-KTK (GOHL) series KAD are engineered to extract high thermal rejection loads from industrial recirculating water loops across manufacturing and chemical plants.

The top-mounted induced-draft axial fan establishes a uniform negative pressure field across the fill pack, preventing flow stagnation and boundary recirculation.

Water enters an elevated distribution header and is dispersed through low-pressure non-clogging polymer nozzles, descending against the upward atmospheric airflow.

A welded monolithic two-millimeter stainless steel collection basin forms a rigid leak-tight foundation, eliminating seam leakage risks during routine drainage and refilling cycles.

Gravity Water Distribution Mechanics in TMX Crossflow Towers

Crossflow cooling towers GOHL-KTK (GOHL) series TMX operate on an open gravity distribution principle, where warm process water flows into overhead distribution basins without requiring auxiliary pump discharge pressure.

Precision metering polypropylene nozzles distribute water across vertical modular PVC film fill packs.

Side-mounted low-speed axial fans pull ambient air horizontally through the falling water film, delivering deep cooling performance with approach thresholds down to two Kelvin above wet-bulb ambient conditions.

The structural framework fabricated from Z-725 hot-dip galvanized steel is shielded with multi-layer COFI-COATING polymer formulation resistant to corrosive industrial fumes.

Electronic Commutation Motor Technology in ECube Series

Energy-saving cooling towers GOHL-KTK (GOHL) series ECube and DTC feature integrated fan assemblies driven by electronically commutated EC motors exceeding IE4 efficiency standards.

Permanent-magnet synchronous drive units incorporate on-board microprocessor speed regulation, eliminating external variable frequency inverter cabinets and shielded wiring runs.

Dynamic speed modulation matching real-time process thermal load and ambient temperature swings curtails annual electrical consumption by up to thirty percent.

Precision dynamic balancing of the composite impeller wheel together with reduced tip velocity suppresses structural vibration and acoustic pressure levels.

Process Isolation Principles in ERI Closed Circuit Towers

For industrial cooling loops demanding strict fluid purity, GOHL-KTK (GOHL) manufactures series ERI closed circuit evaporative cooling towers.

Primary process coolant circulates through a sealed serpentine coil bundle fabricated from heavy-gauge galvanized steel or stainless alloys, preventing exposure to airborne particulates and fouling agents.

The coil bundle exterior is wetted continuously by secondary spray water circulated through an external pump and hollow-cone polymer nozzles.

Forced-draft centrifugal or axial fans located within the dry fresh air intake plenum remain isolated from warm humid vapor, significantly extending motor bearing operating life.

Dual-Mode Hybrid Operation in Water-Saving KAHV Systems

Hybrid industrial coolers GOHL-KTK (GOHL) series KAHV are engineered to minimize water consumption and eliminate visible exhaust plume formation in urban or dense manufacturing zones. Throughout cold and intermediate seasons, the equipment functions fully dry as a closed-loop fluid cooler.

When ambient temperatures rise above dry transition setpoints, an automated control system engages adiabatic fine-mist spraying over the finned heat exchanger utilizing demineralized reverse osmosis water.

Complete moisture evaporation over the fins prevents scale deposition, eliminates biocide dosing, and cuts annual water usage by more than eighty percent.

Maintenance Protocols and Periodic Inspection Requirements

Sustained thermal performance and mechanical reliability of GOHL-KTK (GOHL) cooling equipment require adherence to preventative maintenance protocols.

Operators must inspect recirculating water mineral concentration, drift eliminator integrity, and spray nozzle cleanliness, flushing sediment through the sloped collection sump drain.

In closed circuit ERI installations, maintenance teams verify secondary spray piping integrity and coil surface condition. For ECube fan modules, technicians verify electrical connection tightness and smooth rotor rotation.

Maintaining proper water chemistry prevents biological fouling and ensures design heat transfer capacity over decades.

GOHL-KTK / GOHL and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of GOHL-KTK / GOHL and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.