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Elmo Rietschle · F-Series
Radial blowers F-Series.
Single and multi-stage radial blowers for high flow at low differential pressure – for suction and pressure, in any mounting position. New: the F-RB high speed radial blower.
- capacity up to (F-RB)
- 2,750 m³/h
- differential pressure up to
- 180 mbar
- series available
- 5
Operating principle
Velocity that becomes pressure.
A radial blower accelerates air with a fast-turning impeller, and the spiral housing converts the velocity into pressure.
- As the impeller (2) turns, centrifugal force moves the air in the blade chamber (1) outwards, where it leaves at the edge of the impeller (3).
- This creates negative pressure at the hub (5), so air flows in through the inlet port (4).
- The incoming air is turned from an axial to a radial direction in the blade chambers (6) and, due to the high impeller speed, flows into the spiral housing (7).
- There the velocity drops and part of the energy is converted into pressure. The air leaves through the outlet port (8).
Advantages
Why Elmo Rietschle radial blowers.
- High flow
Single-stage F-RRE/F-RLE up to 57 m³/min (about 3,400 m³/h) – ideal at low differential pressure.
- Quiet and vibration-free
Lightweight cast aluminium housings and impellers, smooth running.
- Maintenance-free bearings
Bearings are greased for life and need no servicing.
- Process safe
No reverse contamination – the air never comes into contact with oil.
- Any mounting position
Left, right, horizontal or vertical; F-RRE turns right and F-RLE left for tight spaces.
- New: F-RB
High speed blower using up to 60 % less energy than a side channel blower at the same duty point.
Series
Radial blower series.
Click a series for technical data, versions and an enquiry.
- F-RBNewΔp up to 180 mbarcapacity up to 2,750 m³/h
F-RER / F-RELBlowerSingle-stage, right- or left-hand rotation
F-CEV-DCompressor / pressureΔp up to 125 mbarcapacity up to 558 m³/h
F-CEV-SVacuumΔp up to 115 mbarcapacity up to 534 m³/h
F-CEVF (29)BlowerΔp up to 90 mbarcapacity up to 300 m³/h
F-CEVF (31)BlowerΔp up to 70 mbarcapacity up to 468 m³/h
Applications
Where they are used.
Environmental engineering
- Aeration
- Drying
- Extraction systems
- Waste water treatment
Industry
- Drying
- Dust extraction
- Vacuum cleaning
- Air conditioning and ventilation
Printing and packaging
- Air supply cabinets for printing presses
- Post-press machines
- Extracting film, foil and plastic trim
Textiles, wood, conveying
- Drying and dust extraction in textiles
- Dust extraction in woodworking
- Pneumatic conveying
Choosing the technology
When to choose radial blowers?
The right choice when
- You need very high flow at up to about 120 mbar differential pressure (F-RB up to 180 mbar)
- It is drying, extraction or air supply
- You want a compact, quiet and maintenance-free blower
- The blower is built into a machine or cabinet with little space
FAQ
Questions and answers.
What is the difference between a radial and a side channel blower?
A radial blower delivers very high flow at low differential pressure. A side channel blower reaches higher differential pressure (up to about 1,000 mbar) at lower flow.
What is the F-RB?
The new Elmo Rietschle high speed radial blower with up to about 2,750 m³/h, vacuum down to 145 mbar and pressure up to 180 mbar. At the same duty point it uses up to 60 % less energy than a side channel blower.
When should I choose an F-CEV multi-stage blower?
When you need more differential pressure at medium flow: F-CEV-S up to 115 mbar vacuum, F-CEV-D up to 125 mbar pressure. The F-CEVF has a built-in filter and collection bin for paper, dust or film pieces.
Tell us your requirements and we will propose the right solution.
Fill in a short form and we will prepare a proposal for a vacuum pump or blower based on flow, pressure, and operating conditions. If needed, we can also include filtration, silencers, and accessories.