High-Pressure Humidifiers
High-Pressure Adiabatic Humidification for Air Handling Units
High-pressure humidifiers are adiabatic humidification systems used to increase the relative and absolute humidity of air in air handling units.
The system is designed on a project basis with a high-pressure pump station, stainless-steel nozzle and pipe assembly, water filtration, automation control and, when required, droplet separators and air-guiding equipment.

Fine-Particle Humidification
With the high-pressure nozzle system, water is introduced into the airflow as fine particles.
Low Energy Consumption
As water is atomised without heating, it provides lower electricity consumption than steam humidification systems.
Precise Automation
It can be managed according to humidification demand with inverter-driven pumps, solenoid valves and staged control options.
What Is a High-Pressure Humidifier?
High-pressure humidifiers are adiabatic humidification systems used in air handling units. The system passes water through nozzles under high pressure and introduces it into the airflow as small particles.
No sensible heating or cooling is performed during the humidification process. As water particles evaporate in the air, absolute and relative humidity increase; the evaporation effect may slightly reduce air temperature.
System Components
High-Pressure Pump Station
The pump station consists of a high-pressure pump, electrical panel, capacity-control inverter, solenoid valve, water filters and an optional control panel. It is positioned between the water supply line and the humidification section.
Humidification Nozzle Assembly
The humidification section includes stainless-steel nozzles and pipe assemblies. The number and diameter of nozzles, as well as their spacing, are determined according to the air flow rate and cross-sectional area of the air handling unit.
Key Technical Features
High-Pressure Humidification Technical Design
Nozzle Capacities
Different capacity options can be applied with 0.15 / 0.20 / 0.30 / 0.50 mm nozzle diameters at a pressure range of 70–100 bar.
Stainless-Steel Line Design
Nozzles, frames and pipe assemblies can be designed in stainless steel.
Project-Based Selection
Capacity is calculated according to air flow rate, inlet-outlet temperatures and relative humidity conditions of the air handling unit.
Water Filtration
Water filters should be checked regularly for pump life and efficient humidification.
Capacity Selection and Automation
Capacity selection is based on the air flow rate of the air handling unit, inlet air dry-bulb temperature, inlet relative humidity, target outlet temperature and target outlet relative humidity. Nozzle diameter, nozzle quantity and pump capacity are determined according to these values.
On/Off Control
All nozzles can be opened simultaneously to provide humidification at constant pressure. The system switches off automatically when the required room humidity level is reached.
Staged Control
Nozzle lines can be divided into zones and operated in stages with solenoid valves. Additional lines are activated when demand increases beyond minimum capacity.
Inverter Pump Control
The pump can be controlled with an inverter to adjust capacity according to demand. This structure provides precise humidity control and energy efficiency.
Water Quality and Filtration
In high-pressure humidification systems, filtering the water supplied to the pump is important. Regular filtration checks are critical for pump life and nozzle performance.
Usage Advantages
Application Areas
Get Information About High-Pressure Humidifiers
High-pressure humidifiers can be used in air handling units for adiabatic humidification, low energy consumption, precise automation control and project-based capacity selection.
Contact us for product selection, technical evaluation and project-specific information.


