Logo Neptronic


  • Humidify and cool
  • Built-in energy efficient control sequences
  • Capacities from 66-4638 lb/hr (30-2108 kg/hr)
  • In-duct or in-space spraying
  • Custom solutions for nozzle racks
  • In-duct spraying
  • Direct in-space spraying for high ceiling applications
  • Fan distribution for low ceiling applications
Hygienic and Efficient
  • Anti-bacterial silver ions prevent microbial growth
  • High-efficiency, water-cooled axial piston pump
  • Monitor and troubleshoot remotely via BACnet network
  • Humidify in winter and cool in summer to reduce energy costs.
  • Overview

  • Distribution

  • Hygienic and Efficient

SKH - Overview

What's New

Cool Humidify Save Connect BMS
Up to 12°C (21°F)
of free cooling
Precision of
± 1%RH
Uses energy from
ambient air
Trending, history
and diagnostics
Integration via


The SKH uses water through a high pressure system to produce a fine mist. By way of the adiabatic process, the SKH uses energy (heat) from the surrounding air to evaporate the fine mist (water droplets). This provides very low energy impact with power consumption values of 2 HP to 10 HP (1.5kW to 7.5kW), which is much lower than other technologies of equivalent capacity, such as steam, compressed air, or ultrasonic systems.



System Overview

  • In-duct or in space spraying (more...)
  • Nozzle rack is custom made to fit your duct dimensions
  • Anti-drip nozzles produce droplets of less than 20μm
  • Available nozzle capacities: 6.6, 8.8 and 11 lb/h (3, 4 and 5 L/h)
  • Variable Frequency Drive (VFD)
  • High pressure water pump
  • 5μm pre-filter and silver ion cartridges (more...)
  • Auto reduction of output if air absorption capacity is not sufficient
  • Auto flushing of pipes
  • Simple and fast assembly and installation

Intelligent Controller

  • Field configurable via LCD (128 x 64) with context-driven, user-friendly menu
  • Real-time clock
  • Simple viewing and exporting of trending log and alarm log
  • Firmware upgradeable via micro SD card

BMS Integration

  • BACnet MS/TP @ 9.6k, 19.2k, 38.4k or 76.8k bps
  • MAC address selectable via menu
  • BACnet scheduler (up to 8 events)
  • Firmware upgradeable via network
  • Automatic baud rate detection
  • Automatic device instance configuration



Model # Capacity Motor
Lb/h Kg/h HP kW
SKH100 66-660 30-300 2 1.5
SKH200 141-1126 64-512 3 2.25
SKH300 231-1454 105-661 5 3.75
SKH600 453-2343 206-1065 7.5 5.6
SKH900 585-3645 266-1657 10 7.5
SKH1200 805-4638 366-2108 10 7.5


  • Commercial Buildings
  • Paint Booths
  • Greenhouses
  • Timber Industry
  • Textile Industry
  • Tobacco Industry
  • Wine Industry


  • Nozzle rack is custom made to fit your duct or AHU dimensions
  • 1 to 4 stages for sequential control
  • 1st stage modulates for close control
  • Droplet separator if required

In-Space (Direct)

  • Spray directly into the space for high ceiling (appx 30ft | 9m) applications

In-Space (With Fan)

  • Spray into the space with a fan (MDU: mist distribution unit) for low ceiling applications (approximately 15-20ft | 4.5-6.0m)
  • Horizontal air flow assists the evaporation process
Model # Air Volume Nozzles Max. Capacity
CFM m3/s Qty Lb/h Kg/h
MDU-230 1000 0.5 6 to 9 40-100 18-45

Hygienic and Safe

  • RO water recommended to:
    • increase hygienic performance
    • minimize maintenance and avoid nozzle blockage
    • avoid spraying minerals into space or duct
    • avoid the use of biocides and chemical disinfectants
  • The systems contain no porous or water storing components
  • Automatically activated rinsing of the complete system prevents standstill contamination. And this without any downtime
  • System design ensures only inert materials come in contact with the water
  • Silicone-free atomization
  • Continuous monitoring of all system components and functions ensures maximum operating safety.

Water Treatment

  • SKH is supplied with:
    • 5μm pre-filter and silver ion dosing anti-bacterial cartridges (for models SKH100 and SKH200)
    • 5μm pre-filter (for models SKH300 to SKH1200)

Energy Efficient

  • By combining a high pressure water pump with the adiabatic process, the SKH uses less energy than other humidifier types that require heating or more expensive air compressors to evaporate the water
  • Misting without expensive compressed air saves on energy costs, compressor maintenance and installation
  • Humidifying in the winter reduces heating costs and providing free cooling in the summer reduces cooling costs
  • VFD regulates motor and pump RPM to ensure greater energy savings and longer pump life

High Pressure Water Pump

  • Very high efficiency, small and compact
  • All stainless steel design
  • Water cooled
  • Axial piston pump
  • Maintenance free as there is no oil to change
  • Extreme recirculation capability (up to 90%) without overheating
  • Fulfils most stringent hygiene requirements, such as VDI 6022

Fast and Easy Servicing and Installation

  • The master controller displays all maintenance intervals and status messages via a multi-functional display screen. An indication also appears on the wall-mount user interface. Operating and fault signals can be integrated into your central building control system.
  • Monitoring and troubleshooting can be done remotely via the BACnet network
  • The water pump is water cooled and lubricated and therefore maintenance is eliminated since there is no oil to change in the pump
  • The nozzle rack is custom made to fit duct dimensions
  • The SKH system features quick connects between the nozzle rack, MDU and pump station