Duct Humidification

Duct Humidification

FINESTFOG duct humidification puts an end to problems associated with humidification in HVAC systems: high energy consumption, elaborate maintenance measures, lack of hygiene.

Deployed via central ventilation systems, FINESTFOG high-pressure air humidification combines the unique innovations of FINESTFOG hygiene technology with the benefits of FINESTFOG direct humidification.

Duct Humidification

1. Water supply connection ½” internal thread with stopcock
2. Water inlet filter
3. Water softening unit​
4. Salt Container

5. Waste water connection
6. Reverse osmosis unit
7. Pressure tank
8. High-pressure air humidification
9. Solenoid valve: humidification

10. Solenoid valve: pressure relief and flushing
​11. High-pressure pipeline stage 1-3
12. Nozzle holders
13. Drop separator (to be provided on site)

The Control unit (duct)

The Control unit (duct)

INESTFOG attaches great importance to high-quality control systems. Only components from reputable manufacturers like Siemens or Eaton-Möller make their way into our switching cabinets. FINESTFOG control units are offered in two versions:

Eaton-Möller – controller for the fully automated control of up to 6 humidifier zone and a maximum humidification performance of 780 litres per hour. Comprises Eaton-Möller PLC, operator display and frequency converter.

Siemens S 7 – the most user-friendly controller, based on a Siemens SPS S7. Up to 8 zones can be humidified. The SIMATIC HMI KP 700 touch panel (7″) displays all operating parameters. The controller unit includes a data logger, an operating hours counter for each zone, a trend analysis and numerous other auxiliary functions. Options range from data transfer to a facility management system. Consult our specialists for available configuration variants.

Both control units for duct humidification convert the control signal arriving from the facility management system to a seven-stage cascade connection. This results in high efficiency and a high degree of control accuracy.

The Pump (duct)

The Pump (duct)

INESTFOG attaches great importance to high-quality control systems. Only components from reputable manufacturers like Siemens or Eaton-Möller make their way into our switching cabinets. FINESTFOG control units are offered in two versions:

Eaton-Möller – controller for the fully automated control of up to 6 humidifier zone and a maximum humidification performance of 780 litres per hour. Comprises Eaton-Möller PLC, operator display and frequency converter.

Siemens S 7 – the most user-friendly controller, based on a Siemens SPS S7. Up to 8 zones can be humidified. The SIMATIC HMI KP 700 touch panel (7″) displays all operating parameters. The controller unit includes a data logger, an operating hours counter for each zone, a trend analysis and numerous other auxiliary functions. Options range from data transfer to a facility management system. Consult our specialists for available configuration variants.

Both control units for duct humidification convert the control signal arriving from the facility management system to a seven-stage cascade connection. This results in high efficiency and a high degree of control accuracy.

The Nozzles

The Nozzles

The FINESTFOG single-medium nozzle is the heart of every FINESTFOG system. Crafted from high-quality stainless steel and hand finished, each nozzle is engraved to identify it as designed and produced exclusively for FINESTFOG.

The ingenious inner workings and a special bore together result in the unique atomization pattern. The nozzle atomizes water into finest aerosols capable of being rapidly taken up by the air. A check spring reliably prevents water dripping.

FINESTFOG nozzles are available in four sizes:

ModelBore diameterHumidification (litres/hour)
1.0100 µm1.1
1.5150 µm2.0
2.0200 µm3.0
2.2220 µm4.6
2.5250 µm6.3
2.7270 µm8.4

The high-pressure nozzles models 2.2 to 2.5 with their very high throughput are ideal for duct humidification.

In HVAC systems the nozzles are screwed into an unobstrusive but solid ¼” stainless steel pipe.