HygroMatik Pressure steam system DDS.

The HygroMatik pressure steam system DDS is connected to an existing steam network and makes the pressurised steam available for energy-efficient air humidification. The HygroMatik DDS humidifies using condensate-free saturated steam and offers shortest possible humidification distances for space-saving installation in e.g. laboratories, clean rooms, hospitals, pharmaceutical, chemical and food industry.

In most applications, the HygroMatik DDS variant C (stainless steel grey cast iron) meets the requirements for optimum integration into the overall system. Hygromatik DDS variant A (100% stainless steel) is suitable for applications with increased hygiene requirements. In this compact 4-in-1 system, all steam-conducting components are made of stainless steel 1.4401 and thus also meet increased requirements for corrosion resistance in pure steam operation.

Depending on the project requirements, the DDS is individually configured and confectioned. The compact dimensions and the low weight enable quick and easy installation - even in difficult installation conditions.

pressure steam system for efficient air humidification with existing pressurised steam
Product description

Replaceable strainer

The high-quality stainless steel strainer protects the control valve and the steam trap from contamination from the steam network. The internal fine mesh strainer can be easily cleaned or replaced if necessary.

stainless steel strainer protects the control valve and steam trap

High-performance steam dryer.

The stainless steel steam dryer separates the condensate from the steam using a spiral-shaped control system.

Reliable start-up protection.

The start-up safety feature activates humidification only after a certain operating temperature has been reached. This effectively prevents condensate from the steam network from entering the air-conditioning duct.

Powerful steam trap

The robust, tight-closing ball float steam trap drains off the condensate. Due to the fast reacting principle and the high capacity, even larger quantities of condensate can be safely discharged, e.g. when starting up the system. The closed system prevents steam losses.

ball float steam trap drains off condensate

Stainless steel steam lances with integrated heating piping.

The HygroMatik pressure steam system DDS is equipped with a steam lance heating piping. Therefore, an additional sheathing is not necessary for efficient humidification.

The steam lances made of high-quality stainless steel have a low net weight, are particularly durable and quickly assembled. The low-noise steam nozzles draw steam centrally from the core stream, the driest area of the steam lance. The alignment of the nozzles against the air flow ensures fast distribution and a short humidification distance.

The internal, self-contained steam lance heating system is located at the lowest point of the steam lance. This allows any condensate to be evaporated again immediately. The lightweight and easy to maintain thermal steam trap drains condensate from the heating system. The heating system is fed directly from the steam dryer.

Optimum control of steam quantity.

The bus-capable actuator ensures optimum automatic control through direct connection – without adapter. The special HygroMatik control valve controls the steam quantity with equal-percentage characteristic curve. This enables particularly precise control in the lower control range and at the same time fast adaptation to high humidity requirements in the upper control range.

steam quantity optimally controlled

Optional accessories.

The recommended optional DDS shut-off valve ensures that, if required, the steam flow can be 100% interrupted for any duration, independent of the control valve.

The DDS manometer for pressure indication allows the current operating pressure to be checked.

shut-off valve ddsmanometer
Production and manufacturing processes
Public buildings and offices
List view


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DDS brochure
Pressurised Steam System
MultiLance brochure
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DDS specification
Pressurised Steam System


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DDS manual

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