Compact installation dimensions are combined with high volume flows. Axial fans made of corrosion-resistant plastic can be fitted in any position to the suction or pressure side of the pipe system.

The internally mounted motor is encapsulated from the exhaust air flow and does not come into contact with the contaminated medium being transported.

Axial fans are optionally available in an ATEX explosion-protected version for Zone 2.

Advantages

• Corrosion-resistant
• Compact design
• Fast availability of standard variants
• Inlet and outlet side with same diameters

Application

• Ideal for the extraction of corrosive gases
• Handling of explosive atmospheres from Ex zones 2

Design

• Impeller made of PPs
• No metal parts in the air flow
• Internal motors separated from the air flow
• Fitted as standard with repair switch or explosion-proof terminal box
• Use of explosion-proof motors possible from size 250

Roof fans made of corrosion-resistant plastic are ideally suited for fume cupboards (digesters) in schools and research facilities without a central fan unit. The exhaust air is blown vertically from the roof upwards, thus minimizing the deposition of aggressive substances on the roof.

The internal motor is separated from the air flow and therefore does not come into contact with the aggressive medium.

Incident rainwater is drained off at the underside of the housing and cannot penetrate into the pipe connected to the suction side.

Optionally available in explosion-protected ATEX version for Zone 1 and Zone 2.

Advantages

• Weatherproof design
• Reliable drainage of rainwater
• Compact design
• Easy installation on flange
• Wide range of accessories available

Application

• Ideal for the extraction of corrosive gases
• Extraction of potentially explosive atmosphere

Design

• Internal motors separated from the air flow
• No metal parts in the air flow
• Fitted as standard with repair switch or explosion-proof terminal box
• Use of explosion-proof motors possible

Silencers made of corrosion-resistant plastic for ventilation systems with small to large volume flows.

Absorption material made from non-flammable mineral wool according to DIN 4102, abrasion-resistant and waterproof welding.

Versions:

• Duct silencer
• Splitter sound attenuator
• Silencer for roof fans

Duct silencer

• Used to reduce noise in ventilation systems with small to medium flow volumes
• Connection variations: pipe, sleeve and flange

Splitter sound attenuator

• Can be used in ventilation systems with medium to large volume flow rates to reduce noise
• Calculations are individually performed on the basis of the volume flow and the desired noise reduction

Silencer for roof fans

• Can be used to reduce soundproofing in direct connection with roof fans
• Stabile welded housing with flange for fan, rain collar and roof top panel

Central air handling units (central AHUs) are made of corrosion-resistant plastic and are mainly used as central exhaust air devices for chemically contaminated exhaust air.

Due to the large number of design variants, our central air handling units can be individually adapted to your requirements.

As our central AHUs come in a large number of models, they can be adapted individually to suit your needs.

Many model options are possible. For example, they can be designed with silencers, for internal/external installations or for potentially explosive areas.

Advantages

• High resistance to aggressive media
• Longevity
• Short downtimes
• Reduction of environmental pollution
• Reduction of operating costs
• Adaptation to a wide variety of structural conditions
• Simple and convenient maintenance and cleaning

Application

• Used with large volumes of air such as use in electroplating baths, the semi-conductor industry and special applications in process exhaust air
• Another area of application is the common exhaust air in large laboratory operations at universities and in the chemical industry

Design

• Due to the large number of design variants, the central AHU units can be individually adapted to your applications and requirements. The modular and optional variability makes designs possible:
• With silencer
• For indoor / outdoor installation
• With installation of humidifiers
• With air filters
• With illuminated and walk-in inspection chambers
• With bypass chambers to circumvent heat exchanger (WRG)
• With fans in acoustically covered box
• With heat exchanger (WRG) made of completely corrosion-resistant plastic or specially coated steel
• For explosive areas

Centrifugal fans made of corrosion-resistant plastic are used to convey chemically aggressive exhaust air. Whether for high volume flows, high pressures or to meet the demand for special materials, HF centrifugal fans are the efficient "all-rounders" among fans.

Their areas of application include laboratory exhaust air, semiconductor production, electroplating industry, water treatment, composting plants and many other individual areas of application in the chemical industry.

From standard products through individual special solutions, our fans will provide you with a wide range of possible uses.

All models are optionally available in an explosion-protected ATEX version for Zone 1 and Zone 2.

Advantages

• Corrosion-resistant
• Energy-efficient
• Weather-proof
• Finely graduated sizes
• Fast availability of standard variants
• Inlet and outlet side with same diameters
• Wide range of accessories

Application

• Optimal for the extraction of corrosive gases from laboratory to galvanic exhaust air
• Handling of explosive atmospheres from Ex zones 2 and 1

Design

• Housing made of UV-resistant PEs
• Impeller made of PPs as standard
• Motor outside the airflow
• No metal parts in the air flow
• Use of different motors (Ex) possible