Centrifugal fans

plastic centrifugal fans for conveying chemically aggressive exhaust air

HLU’s plastic centrifugal fans are specially designed for conveying chemically aggressive exhaust air. Their distinguishing feature is their extreme resistance to corrosion. They also generate high volume flows and pressure differences with optimum efficiency. Centrifugal fans are the efficient “all-rounders” of plastic fans. HLU offers you the perfect solutions for your needs, from standard products to individual bespoke products. For use in potentially explosive areas, all series are available in an explosion-proof version for zones 2 and 1 in accordance with ATEX.

Small centrifugal fans

HF R 75/110

Application
  • can be used in all applications with small air volumes
  • low weight and compact dimensions ensure easy installation
  • ideal for 24-hour exhaust air extraction from chemical storage cabinets
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1 Features
Features
  • volume flow from 15 to 500 m³/h
  • at a maximum pressure difference of 420 Pa
  • available in nominal diameters 75 mm and 110 mm
Online shop
Volume flow15 – 500 m³/h
Pressure difference420 Pa
Nominal diameters75 and 110 mm
Operating temperature0 – 60 °C
Housing materialPPs, PPs-el
Impeller materialPP-el
Drive system three-phase or AC motor
Atexsuitable for installation in and extraction from ATEX zone 2 as standard, optionally for ATEX zone 1 in electrically conductive version
Design with shaft seal as standard
Connection options pipe or flange connection

Advantages:

  • corrosion resistant
  • compact design
  • versions for different installation situations
  • fast availability of the standard variants
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

Centrifugal fans

HF R 15/17

Application
  • can be used in all applications with medium air volumes
  • ideal for extraction from fume hoods and chemical storage cabinets in laboratories
  • also suitable, with optional accessories, for more demanding industrial applications, such as tank vapour extraction in the electroplating industry
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 100 to 15000 m³/h
  • at a maximum pressure difference of 5000 Pa
  • available in 12 nominal diameters from 125 to 500 mm intake diameter
Online shop
Volume flow100 – 15.000 m³/h
Pressure difference5.000 Pa
Efficiency levelup to 81%
Nominal diameters12 nominal diameters from 125 to 500 mm
Operating temperature0 – 60 °C
Housing materialUV-beständiges PEs
Impeller materialPPs, GFK, CFK
Drive system direct or belt drive
Atexoptionally suitable for installation in and extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Connection options pipe or flange connection

Advantages:

  • corrosion resistant
  • energy efficient
  • weatherproof
  • compact design
  • graduated sizes
  • fast availability of the standard variants
  • suction and discharge openings with the same diameter
  • comprehensive range of accessories
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

Centrifugal fans with EC motors

HF R 15/17 EC

Application
  • ideal for energy-sensitive applications and modernisation measures
  • optionally suitable for installation in and extraction from ATEX zone 2
Features
  • volume flow from 100 to 3000 m³/h
  • at a maximum pressure difference of 1600 Pa
  • available in 6 nominal diameters from 125 to 250 mm
  • very simple speed control with EC motor with integrated control electronics
  • optional control via external 0 to 10 volt signal or Modbus interface
Online shop
Volume flow 100 – 3.000 m³/h
Pressure difference1.600 Pa
Efficiency level up to 81%
Nominal diameters 6 nominal diameters from 125 to 250 mm
Operating temperature 0 – 60 °C
Housing materialUV-beständiges PEs
Impeller materialPPs
Drive system energy-efficient EC motor
Atexoptionally suitable for installation in and extraction from ATEX zone 2
Design speed controller and repair switch ready wired
Connection optionspipe or flange connection

Advantages:

  • safe and easy to use and install
  • easy connection (plug & play)
  • high efficiency level
  • low power consumption
  • optimally integrated monitoring function
  • infinitely variable speed
  • compact design
  • no additional parts necessary

The following accessories are recommended for this product:

Centrifugal fans

HF R 13/16

Application
  • can be used in all applications with large air volumes, such as electroplating tanks, the semiconductor industry, water treatment plants and special applications involving process exhaust air
  • ideal for extraction of collected exhaust air from large laboratories at universities, research institutes and in the chemical industry
  • the wide range of possible materials for the housings and impellers means that they can be optimally configured to meet specific requirements
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 3000 to 250000 m³/h
  • at a maximum pressure difference of > 5000 Pa
  • available in 18 nominal diameters from 160 to 1600 mm intake diameter
Volume flow 3.000 to 250.000 m³/h
Pressure difference >5.000 Pa
Efficiency level up to 81%
Nominal diameters 18 nominal diameters from 160 to 1600 mm
Operating temperature 0 to 70 °C
Housing materialPPs
Impeller material PPs, FRP, CFRP, steel coated
Drive systemdirect, belt or clutch drive
Atexoptionally suitable for extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Designframe galvanised as standard
Connection optionspipe or flange connection

Advantages:

  • corrosion resistant
  • high efficiency level
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

High-pressure fan

HF R 48

Application
  • for achieving high pressures at low flow rates
  • ideal for applications with relieving hoods, multi-stage exhaust air purification, liquid baths and many special applications involving process exhaust air
  • the wide range of possible materials for the housings and impellers means that they can be optimally configured to meet specific requirements
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 100 to 7000 m³/h
  • at a maximum pressure difference of > 7000 Pa
  • available in 7 nominal diameters from 50 to 200 mm intake diameter
Volume flow 100 to 7.000 m³/h
Pressure difference 7.000 Pa
Efficiency level up to 60%
Nominal diameters 7 nominal diameters from 50 to 200 mm
Operating temperature 0 – 70 °C
Housing material PPs
Impeller material steel coated
Drive systembelt drive
Atexoptionally suitable for extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version

Advantages:

  • corrosion resistant
  • high-pressure version up 7000 Pa
  • no metal parts in the airflow
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

Centrifugal fans

MRV/RV – 45/63

Application
  • can be used in all applications with small and medium air volumes
  • ideal for extraction from fume hoods and chemical storage cabinets in laboratories
  • also suitable, with optional accessories, for more demanding industrial applications, such as tank vapour extraction in the electroplating industry
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 150 to 8000 m³/h
  • at a maximum pressure difference of 2500 Pa
  • available in 5 nominal diameters from 160 to 355 mm
Volume flow 150 to 8.000 m³/h
Pressure difference 2.500 Pa
Efficiency level up to 83%
Nominal diameters 5 nominal diameters from 160 to 355 mm
Operating temperature 0 – 60 °C
Housing material PP, PPs, PVC, PE, PVDF
Impeller materialPP-Gf, PP, PPs, PVC, PVDF
Drive system direct or belt drive
Atexoptionally suitable for installation in and extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Connection options pipe or flange connection

Advantages:

  • corrosion resistant
  • energy efficient
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

Centrifugal fan

RV 45/63 Anwendung

Application
  • volume flow from 150 to 150000 m³/h at a maximum pressure difference of 3000 Pa
  • available in 18 nominal diameters from 160 to 1600 mm intake diameter
Features
  • Volumenstrom von 150 – 150.000 m³/h bei einer maximalen Druckdifferenz von 3.000 Pa
  • In 18 Nennweiten von 160 – 1.600 mm Ansaugdurchmesser lieferbar
Volume flow 150 to 150.000 m³/h
Pressure difference 3.000 Pa
Efficiency level up to 83%
Nominal diameters 18 nominal diameters from 160 to 1600 mm
Operating temperature 0 – 60 °C
Housing material PP, PPs, PVC, PE, PVDF
Impeller materialPP, PPs, PVC, PVDF, GFK, CFK, Stahl-beschichtet
Drive system direct or belt drive
Atexoptionally suitable for installation in and extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Connection options pipe or flange connection

Advantages:

  • corrosion resistant
  • energy efficient
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

High-pressure fan

RV 20

Application
  • can be used in all applications with medium air volumes
  • ideal for extraction with high pressure differences
  • also suitable, with optional accessories, for more demanding industrial applications, such as tank vapour extraction in the electroplating industry
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 80 to 2500 m³/h at a maximum pressure difference of >6500 Pa
  • available in 4 nominal diameters from 80 to 140 mm intake diameter
Volume flow 80 to 2.500 m³/h
Pressure difference 6.500 Pa
Efficiency level up to 76%
Nominal diameters 4 nominal diameters from 80 to 140 mm
Operating temperature0 – 60 °C
Housing materialPP, PPs, PVC, PE, PVDF
Impeller material PP, PPs, PVC, PVDF, FRP, CFRP, steel coated
Drive systemdirect or belt drive
Atexoptionally suitable for installation in and extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Connection optionspipe or flange connection

Advantages:

  • corrosion resistant
  • high-pressure version up 6500 Pa
  • no metal parts in the airflow
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

High-pressure fan

RV 28

Application
  • can be used in all applications with medium and high air volumes
  • ideal for extraction with high pressure differences
  • also suitable, with optional accessories, for more demanding industrial applications, such as tank vapour extraction in the electroplating industry
  • optionally suitable for installation in and extraction from ATEX zones 2 and 1
Features
  • volume flow from 500 to 50000 m³/h
  • at a maximum pressure difference of > 6000 Pa
  • available in 13 nominal diameters from 200 to 800 mm intake diameter
Volume flow500 to 50.000 m³/h
Pressure difference6.000 Pa
Efficiency level up to 71%
Nominal diameters 13 nominal diameters from 200 to 800 mm
Operating temperature0 – 60 °C
Housing materialPP, PPs, PVC, PE, PVDF
Impeller material PP, PPs, PVC, PVDF, FRP, CFRP, steel coated
Drive systemdirect or belt drive
Atexoptionally suitable for installation in and extraction from ATEX zone 2 or ATEX zone 1 in electrically conductive version
Connection optionspipe or flange connection

Advantages:

  • corrosion resistant
  • high-pressure version up 6000 Pa
  • no metal parts in the airflow
  • motor mounted outside the airflow
  • use of different motors (explosion-proof motors) possible

The following accessories are recommended for this product:

Overview of the possible housing positions:

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