Cleanroom HVAC and Air Handling Equipment

Electrode Steam Humidifier

A packaged atmospheric steam generator that uses water conductivity between immersed electrodes to supply hygienic steam to a duct lance or room blower.

Conductivity-Based Steam Generation
Replaceable Cylinder
Adaptive Fill and Drain
Duct or Room Dispersion

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Product Introduction

Mains water enters a replaceable steam cylinder containing large-area electrodes. Electrical current passes through the water and generates steam directly, while automatic fill and drain cycles regulate conductivity and output. The cabinet contains the cylinder, fill cup, drain pump and touchscreen controls, and connects to either a duct steam distributor or a direct-room blower pack.

Key Features

The water itself forms the resistive path, eliminating a separate immersed heater bundle.

A replaceable cylinder packages electrodes and accumulated mineral deposits into one service component.

Adaptive fill and blowdown respond to incoming water conductivity and operating current.

Touch controls provide proportional demand input, operating history and common building-control connections.

Customer Product Concerns

Electrode humidifiers depend on water conductivity and mineral management to deliver stable steam with predictable maintenance.

Feed-water conductivity changes and causes unstable current draw.Automatic fill and drain logic adapts cylinder water concentration to the measured electrical load.

Minerals accumulate on electrodes and reduce usable output.The complete electrode cylinder is removable and replaceable without dismantling the cabinet.

Condensate in the steam hose causes spitting at the distributor.Correct hose slope and a dedicated condensate return keep liquid out of the dispersion lance.

Humidity demand varies quickly with outdoor-air load.Proportional input modulates steam output across the usable cylinder range.

Typical Applications

Pharmaceutical cleanroom humidificationData-center humidity controlHospital and laboratory air handlersElectronics manufacturing roomsMuseums and controlled storage

Technical Parameters

Representative physical and operating ranges for a commercial electrode humidifier are listed below.

Core Material	Replaceable polymer steam cylinder with corrosion-resistant grid electrodes
Panel Thickness	1.0-1.5 mm powder-coated steel cabinet panel thickness
Effective Width	350-1000 mm cabinet width depending on cylinder count
Maximum Length	Up to 400 mm cabinet depth depending on cylinder count
Steel Facing Thickness	1.0-1.5 mm coated steel enclosure
Core Density	Approximately 900-910 kg/m³ for polypropylene steam-cylinder material
Thermal Conductivity	Approximately 0.19-0.25 W/(m·K) for polymer cylinder material
Surface Finish	Off-white powder-coated cabinet with blue polymer service components
Joint Type	Wall-mounted bolted cabinet with replaceable cylinder, hose steam outlet and threaded water connections
Customization	Available based on the intended application and operating environment.

Available Options

Single or dual steam cylinderDuct dispersion lance or direct-room blower packOutdoor weather-resistant enclosureHumidity sensors and common BMS protocols

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