When field experience becomes a dedicated range
At SEAT Ventilation, we listen to our customers. For years, we have offered the option of combining our anti-corrosion fans with a roof mounting bracket to create high-performance extraction solutions. Today, we have decided to go further: to transform this proven combination into an official range, designed and optimized from the design stage.
Today, we are proud to introduce the R Series, our new line of horizontal rejection roof extractors.


The R-Series: much more than just assembly
All-inclusive design
The R-Series is not just a fan with a mounting accessory; it is a complete solution. Each unit incorporates a 100% corrosion-resistant high-density polypropylene centrifugal extractor, equipped with a weatherproof engine cover. The optimized diffuser ensures effective horizontal discharge, while the stump is specially designed for direct installation on a waterproofing survey or on a curb. A safety switch allows for a standard-compliant emergency stop.
Performance tailored to your needs
The R-Series range covers a wide range of applications. Available flow rates range from 50 to 10,000 m³/h, with a static pressure of up to 2000 Pa. The 100% high-density polypropylene construction ensures that there is no metal in the airflow, providing exceptional resistance to corrosive fumes. This resistance is UV certified.
Saving time and increasing reliability
Prior to the R Series, installing a roof extractor required several steps. First, we had to select the fan, then choose the compatible accessories, assemble the whole thing on site, check the leak, test the operation, while managing the risk of incompatibilities.
- A single part number to order the complete set
- Pre-assembled at the factory — ready for direct installation
- Up to 40% faster than a solution assembled on site
- Improved reliability — zero incompatibilities
For what applications?
- Research laboratories and universities Extraction of toxic and corrosive vapors. Full resistance to acids and solvents. Reliable 24-hour operation with minimal maintenance. Rooftop installation to keep discharges away from air intakes.
- Pharmaceutical and chemical industries Extraction of aggressive vapors at height. Horizontal discharge for better dispersion. Anti-corrosion construction ensuring exceptional longevity. ATEX versions available for explosive atmospheres.
- Water treatment Permanent extraction of chlorine, ammonia and corrosive gas vapors. Resistance to humid environments. Durability far superior to traditional metal solutions.
- Swimming pools and aquatic centers Ventilation of chlorine storage rooms. Extraction at buffer tanks. Permanent moisture resistance and chlorine corrosion protection.
- ATEX Atmospheres Models compliant with European directives. Safe extraction in classified areas. Comprehensive documentation and certification of conformity provided.
SEAT DNA at the heart of the R Series
55 years of experience in anti-corrosion ventilation
Since 1968, SEAT Ventilation has been designing and manufacturing anti-corrosion fans for aggressive environments. The R Series benefits directly from this expertise accumulated over more than half a century in the pharmaceutical, chemical and industrial sectors.
Our roof extractors are manufactured from high-density polypropylene, a proven material on thousands of installations around the world. Each impeller is rigorously balanced at the factory, and the one-piece volutes guarantee maximum reliability even in the most demanding conditions. The motors are positioned outside the airflow, an essential configuration for ATEX versions intended for explosive atmospheres, thus ensuring their longevity in corrosive environments.
All our centrifugal fans undergo rigorous factory testing before shipment. This quality approach allows us to guarantee optimal performance from commissioning and exceptional durability in the field.
An environmental commitment
The R Series is fully part of our eco-responsible approach. The high-density polypropylene used is 100% recyclable and can be recovered at the end of its life, unlike traditional metal extractors that generate non-recyclable waste.
The exceptional longevity of our anti-corrosion extractors — up to 20 years in the most aggressive environments — significantly reduces the number of replacements required, thus limiting the environmental impact. The aerodynamic optimization of our impellers also reduces electricity consumption, accelerating return on investment while reducing the carbon footprint of your installations.
Finally, the total absence of heavy metals in construction eliminates any risk of environmental pollution at the end of life, a major advantage for installations subject to strict environmental standards.
What doesn't change
SEAT Quality
2-year warranty on all components
Responsive after-sales with permanent spare parts stock
Express delivery within 24-48h
Technical support
System sizing via ZEPHYR software
Personalized advice on the most suitable reference
Complete support before, during, and after installation
Polypropylene
Zero corrosion — performance maintained
Zero painting — no repainting required
40% lighter — less structural stress
R Series: 5 models to cover all your needs
| Model | Max flow rate (m³/h) | Max Pressure (Pa) |
|---|---|---|
| R-15 | 50 – 700 | 600 |
| R-20 | 200 – 1,800 | 1,400 |
| R-25 | 500 – 3,300 | 2,000 |
| R-30 | 700 – 4,500 | 800 |
| R-35 | 1,500 – 9,000 | 1,500 |
Each model is available in several motor configurations to optimize the flow/pressure ratio according to your application.
Why choose the R Series?
- Simplicity A single reference, a single order, a single installation. No more headache of multiple compatibilities.
- Reliability Optimized from the design stage. Guaranteed functional upon delivery. Zero unpleasant surprises.
- Installation speed Up to 40% faster than a solution assembled on site. Considerable economic gain.
- Durability 100% polypropylene construction. Maximum corrosion resistance. Exceptional longevity.
- Savings Less installation time. Less maintenance. Fewer replacements. Optimal ROI.
The R Series in numbers
- 5 models covering from 50 to 9,000 m³/h
- 100% polypropylene in the airstream
- 2000 Pa maximum static pressure
- 2-year manufacturer's warranty
- 24-48h average delivery time
- 55 years of SEAT Ventilation experience
- 100 countries where our fans are installed
Conclusion: A natural evolution
The R Series is not a revolution. It is a logical development, the result of your experience and ours.
For years, you've combined our fans with our mounting brackets to create high-performance roof extraction solutions. We listened, observed, and decided to systematize this winning approach.
The result: a range designed for roof extraction from the ground up, saving you time, reliability and peace of mind.
The R Series is simply SEAT Ventilation making official what you were already doing intelligently.