Centrifugal fans made of plastic from HLU

HF R 15/17 and HF R 13

Centrifugal fans made of plastic

HLU centrifugal fans, with either a sintered or welded design, provide maximum efficiency and durability.
They are specifically designed for conveying corrosive, toxic or potentially explosive gases and meet the highest industrial requirements.

Made from high-grade plastic materials, they provide excellent resistance to aggressive media and are ideal for use in the chemical, pharmaceutical and semiconductor industries.
HLU centrifugal fans are the ideal choice for safe, high-performance exhaust air systems, boasting various drive options, high energy efficiency and freely configurable sizes.
They are corrosion-resistant, weatherproof and available in ATEX-certified versions for Zone 1 and Zone 2.

Advantages

Corrosion-resistant plastics – Durable materials for aggressive media
High resilience – Resistant to chemicals, acids and solvents
Flexible design – Various sizes for individual requirements
Energy-efficient technology – Optional EC motors for reduced energy consumption
Wide range of accessories – Silencers, control technology, ATEX versions

Application

Reliable extraction – Conveying corrosive gases and contaminated airflows
Explosion-protected use – Safe operation in ATEX Zones 1 and 2
Use in demanding industries – Chemical, pharmaceutical, food, semiconductor, electroplating …
Optimal adaptation – Suitable for indoor and outdoor installation

Construction

Housing of welded or laminated plates – High stability and resistance
Versatile material range – PEs, PPs, PE-el, PPs-el or fibre-reinforced plastic
No metal parts in the air flow – Maximum corrosion resistance for aggressive media
Wide variety of impeller variants – Optimal adaptation to specific requirements
Frames galvanised as standard – Robust construction for long lifetime
All industrial motors in B3 mounting can be used – Maximum flexibility in motor selection
Several drive variants available – Direct drive, belt drive or coupling drive

Typical fields of application

HLU centrifugal fans are a reliable solution for exhaust air in sectors where safety and efficiency are crucial. They are designed specifically for industrial applications requiring reliable and safe removal of contaminated exhaust air.

HF R 15/17 – For the highest demands

Ideal for medical and hygiene sectors, science and research, laboratories, the food industry and the chemical and pharmaceutical industries. Centrifugal fans ensure efficient exhaust air in laboratories, schools and research facilities where the highest air quality is essential.

HF R 13 – High performance for large volume flows

Designed for applications involving high exhaust air volumes, the HF R 13 centrifugal fan is ideal for use in the electroplating industry, composting plants, and the food, chemical, pharmaceutical and semiconductor industries. They ensure the powerful and efficient extraction of aggressive gases and large air volumes.

Medical and hygiene sector

Semiconductor industry

Science and research

Electroplating industry

Biogas

Laboratory and research facilities

Food industry

Composting

Chemical and pharmaceutical industry

Water treatment

Product overview

Characteristics

HF R 15/17

Volume flow from 10 – 20,000 m³/h
at a maximum pressure difference of 5,000 Pa
available in 12 nominal sizes with inlet diameters from 125 – 500 mm

HF R 13

Volume flow from 3,000 – 250,000 m³/h
at a maximum pressure difference of > 5,000 Pa and higher
available in 18 nominal sizes with inlet diameters from 450 – 1,600 mm

Specification text HLU / HF centrifugal fans

DS1 | PPs impeller

HF R ...-15 / 17 D DS1 | Direct drive

HF - centrifugal fan with direct drive
compliant with the Ecodesign Directive (ErP)

A corrosion-resistant plastic centrifugal fan with a PEs housing in RAL 7036 with a sintered design and a single inlet. The inlet nozzle has a seal that serves as an inspection opening and is easy to dismantle. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV).
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11). It is mounted to the motor shaft via a taper-lock bush.
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate. The frame is suitable for accommodating the fan housing with impeller and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. D DS1

Housing material	: PEs
Impeller material	: PPs
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

HF R ...-15 / 17 D DS1 | EC motor

HF R ...-15 / 17 D EC

HF - Centrifugal fan with direct drive
Version with EC motor
compliant with the Ecodesign Directive (ErP)

A corrosion-resistant plastic centrifugal fan with a PEs housing in RAL 7036 with a sintered design and a single inlet. The inlet nozzle has a seal that serves as an inspection opening and is easy to dismantle. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV).
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11). It is mounted to the motor shaft via a taper-lock bush.
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate. Fan frame suitable for accommodating the fan housing with impeller and the drive unit.
Drive unit consisting of a high-efficiency EC motor and lockable maintenance isolator switch.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R ...-.. D (DS1) EC
Housing material	: PEs
Impeller material	: PPs
Housing positions	: GR ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air
Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)
Motor power	: ...	kW
Voltage	: 230	V
Mains frequency	: 50	Hz
Rated current	: ...	A
Degree of protection / Motor protection	: IP 55 / integrated in motor

Accessories per fan:

1 pc potentiometer IP67, mounted and wired, with scale 1 – 10 for infinitely variable speed control,
factory-preset to operating point
1 pc maintenance isolator IP66, mounted and wired, with two auxiliary contacts (1 NO, 1 NC)
1 set of sleeves and rubber anti-vibration mounts

HF R ...-15 / 17 R DS1 | Belt drive

HF - Centrifugal fan with belt drive

A corrosion-resistant plastic centrifugal fan with a UV-stabilised PEs housing in RAL 7036 with a sintered design and a single inlet. The inlet nozzle has a seal that serves as an inspection opening and is easy to dismantle. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV).
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality G 6.3 (DIN ISO 21940-11). It is mounted on the shaft of the flange-mounted double bearing via a taper-lock bush.
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate and belt guard. The frame is suitable for accommodating the fan housing with impeller, the belt drive and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. R DS1

Housing material	: PEs
Impeller material	: PPs
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

Welded design

HF R ...-15 / 17 D | Direct drive

HF - centrifugal fan with direct drive
compliant with the Ecodesign Directive (ErP)

This corrosion-resistant plastic centrifugal fan with a thermoplastic housing has a robust welded design and a single inlet. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV). Inspection opening on the inlet nozzle side.
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11), cantilever mounted on the motor shaft.
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate. The frame is suitable for accommodating the fan housing with impeller and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. D

Housing material	: ...
Impeller material	: ...
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

HF R ...-13 D | Direct drive

HF - Centrifugal fan with direct drive

A corrosion-resistant plastic centrifugal fan with a thermoplastic housing, in a robust, welded design, single- inlet. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV). Inspection opening on the inlet nozzle side.
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11), cantilever mounted on the motor shaft.
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate. The frame is suitable for accommodating the fan housing with impeller and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. D

Housing material	: ...
Impeller material	: ...
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

HF R ...-15 / 17 RF | Belt drive | Flange double bearing

HF centrifugal fan with belt drive

This corrosion-resistant plastic centrifugal fan with a thermoplastic housing has a robust welded design and a single inlet. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV). Inspection opening on the inlet nozzle side.
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11), mounted on double flange bearings (RF).
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate and belt guard. The frame is suitable for accommodating the fan housing with impeller, the belt drive and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. RF

Housing material	: ...
Impeller material	: ...
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

HF R ...-13 RF | Belt drive | Flange double bearing

HF - Centrifugal fan with belt drive

This corrosion-resistant plastic centrifugal fan with a thermoplastic housing has a robust welded design and a single inlet. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV). Inspection opening on the inlet nozzle side.
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11), mounted on double flange bearings (RF). The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate and belt guard. The frame is suitable for accommodating the fan housing with impeller, the belt drive and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. RF

Housing material	: ...
Impeller material	: ...
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

HF R ...-13 RB | Belt drive | Plummer block bearings

HF - Centrifugal fan with belt drive

This corrosion-resistant plastic centrifugal fan with a thermoplastic housing has a robust welded design and a single inlet. There is a condensate drain at the lowest point of the housing and splinter protection made of plastic-coated wire mesh in accordance with German accident prevention regulations (UVV). Inspection opening on the inlet nozzle side.
The impeller features backward-curved blades and is statically and dynamically balanced to at least balance quality grade G 6.3 (DIN ISO 21940-11), mounted via Plummer block bearings bearings (RB).
The fan frame is made of heavy-duty welded galvanised steel and has a motor support plate and belt guard. The frame is suitable for accommodating the fan housing with impeller, the belt drive and the motor.

Manufacturer	: Hürner Luft- und Umwelttechnik
Type	: HF R … - .. RB

Housing material	: ...
Impeller material	: ...
Housing positions	: ...
Inlet diameter	: ...	mm
Conveyed medium	: Exhaust air

Volume flow	: ...	m³/h
Total pressure difference	: ...	Pa
Static pressure difference	: ...	Pa
Sound pressure level Lp2A (1 m)	: ...	dB(A)
SFP	: ...	W/(m³/s)

Motor power	...	kW
Voltage	...	V
Mains frequency	...	Hz
Rated current	...	A
Degree of protection / Motor protection	IP 55 / PTC

Housing and impeller in corrosion-resistant plastic

Flame-retardant polyethylene | PEs

✓ Good resistance to inorganic acids

✓ High UV resistance

✓ Good low-temperature toughness

✓ Favourable price

Standard material for sintered housing

Polyethylene | PE-el

✓ Good resistance to inorganic acids

✓ High UV resistance

✓ Good low-temperature toughness

✓ Favourable price

Standard material for sintered housing

Flame-retardant polypropylene | PPs

✓ Good resistance to inorganic acids

✓ Good mechanical strength

✓ Favourable price

Standard material for thermoplastic impellers

Flame-retardant, electrically dissipative polypropylene | PPs-el

✓ Good resistance to inorganic acids

✓ Suitable for ATEX Zone 1

Housing and impellers in fibre-reinforced plastic

GRP / CFRP

Housing and/or impellers made of GRP

Maximum resistance for extreme conditions
Designed for particularly demanding applications, our centrifugal fans are available with housing and/or impellers made of glass-fibre reinforced plastic (GRP). This material provides an exceptional combination of chemical resistance, mechanical stability and durability.

GRP features:

Fibre-plastic composite with high strength and chemical resistance
Thermoset materials based on vinyl ester resins for maximum durability
Corrosion-free even in highly aggressive environments

Advantages:

UV- and weather-resistant for long-lasting performance
Low specific weight with high strength
High fatigue strength without plastic deformation
Self-extinguishing – no dripping in the event of fire
Cold- and heat-resistant for use at extreme temperatures

Available in electrically conductive version for ATEX Zone 1

Carbon impellers | CFRP

Carbon-fibre reinforced plastic
We offer impellers made of CFRP (carbon-fibre reinforced plastic) for the highest requirements in terms of resistance and strength.
They are characterised by low weight, exceptional stability and extreme corrosion resistance.

CFRP features:

Lightweight, high-strength structure by embedding carbon fibres in a polymer matrix
Excellent corrosion resistance, even with aggressive media such as hydrofluoric acid (HF)
Very high tensile and compressive strength for demanding applications

Advantages:

UV- and weather-resistant
Long lifetime
Low weight with maximum mechanical load capacity
Excellent dynamic behaviour for very high peripheral speeds
Self-extinguishing with no flaming droplets in case of fire
Cold- and heat-resistant
Available in electrically conductive version for ATEX Zone 1

Steel impellers with chemically resistant coating

We offer steel impellers with a chemically resistant coating for applications involving particularly aggressive media.
This combination ensures optimal adaptation to the respective operating conditions.

Features:

Excellent corrosion protection due to robust coating
High temperature resistance
High chemical resistance

Scratch resistance

Centrifugal fans with EC motor

Energy efficiency with EC technology

Our HLU centrifugal fans are optionally equipped with state-of-the-art EC technology. This allows for particularly energy-efficient, infinitely variable exhaust-air conveyance. Energy consumption is reduced significantly thanks to intelligent control technology, without compromising performance.

Advantages of EC technology:

Maximum energy efficiency – Reduced power consumption compared with conventional motors
Optimum performance – High efficiency at minimal energy input
Flexible speed control – Seamless adjustment to individual demand

Explosion protection according to ATEX 2014/34/EU

HLU centrifugal fans – Maximum safety for hazardous areas

Special requirements apply to exhaust-air technology in environments with potentially explosive atmospheres. Our HLU centrifugal fans are ATEX-certified and have been specifically developed for safe use in Zones 2 and Zone 1, complying with ATEX Directive 2014/34/EU.

These fans are ideal for extracting chemically aggressive and potentially explosive air mixtures owing to the use of flame-retardant, electrically dissipative plastics (PE-el/PPs-el) and Ex motors.

ATEX version
Zone 2 inside / no zone outside

Housing and Impeller
in flame-retardant plastic (PEs, PPs, PVC, …)
Shaft seal
for maximum operational safety and protection against leakage
Optional protective grid
on the suction and outlet sides for protection against foreign bodies
Type label with Ex marking and documentation
for easy identification and compliant use in Zone 2

ATEX version
zone 2 inside / zone 2 outside

Housing and Impeller
in flame-retardant plastic (PEs, PPs, PVC, …)
Optional shaft seal
for maximum operational safety and protection against leakage
Optional protective grid
on the suction and outlet sides for protection against foreign bodies
Motor for single-stage network operation
II 2G Ex eb II T3 Gc
Motor for inverter operation
II 2G Ex db eb IIC T4 Gb with PTC
Type label with Ex marking and documentation
for easy identification and compliant use in Zone 2

ATEX version
zone 1 inside / zone 2 outside or
zone 1 inside / zone 1 outside

Housing and impeller
made of electrically conductive and flame-retardant PE-el or PPs-el
Optional shaft seal
for maximum operational safety and protection against leakage
Optional protective grid
on the suction and outlet sides for protection against foreign bodies
Motor for single-stage network operation
II 2G Ex eb II T3 Gc
Motor for inverter operation
II 2G Ex db eb IIC T4 Gb with PTC
Type label with Ex marking and documentation
for easy identification and compliant use in zone 1 and 2

HLU centrifugal fans catalogue

HF R 15/17 | HF R 13

Further details on our HLU centrifugal fans can be found in our catalogue.
All technical data, dimensions and descriptions are available to download as a convenient PDF.