
Corrosion-resistant plastic fans, plastic systems and AHU units for air conditioning and ventilation technology

HLU Monsun GmbH
Schwalbach am Taunus · Frankfurt am MainNew on Amplifa
About HLU Monsun
HLU Monsun GmbH was a company specialized in the development and implementation of air conditioning, ventilation and refrigeration technology, based in Schwalbach am Taunus. Since 1949, the Monsun brand stood for project management, high-quality AHU system construction and maintenance of ventilation systems. The product portfolio included corrosion-resistant plastic fans (among others axial and roof fans for ATEX zones 1 and 2), plastic systems, AHU units, volume flow controllers, plastic heat exchangers (recuperators) as well as duct silencers made of non-combustible mineral wool. Manufacturing and assembly was carried out predominantly in corrosion-resistant plastics such as PVC and PPs as well as in special materials. Customers came from the medical, hygiene, industrial and research sectors. As of 01.01.2019, HLU Monsun GmbH was fully merged into Hürner Luft- und Umwelttechnik GmbH (based in Mücke) and has been inactive since then.
- Site
- Schwalbach am Taunus
- Processes
- Manufacture of corrosion-resistant plastic fans (axial fans), Manufacture of plastic systems and AHU units, Installation of ventilation systems, Roof fans for small and medium air volumes (ATEX Zone 1 & 2, EC motor option), Volume flow controllers with auxiliary energy (±5% control accuracy, airtight per DIN 1946-4), Volume flow controllers without auxiliary energy (volume flow 75-3200 m³/h), Plastic heat exchangers (recuperators), Duct silencers made of non-combustible mineral wool
- Materials
- Plastic (corrosion-resistant), PVC, PPs, non-combustible mineral wool, Non-combustible mineral wool
- Certificates
- DIN 1946-4 (airtight, tight-closing)
- Founded
- 1989-03-08
- Industries
- Medical, Hygiene, Industry, Research
- 01
Project management
- 02
Development and design
- 03
Manufacturing and assembly of the systems
- 04
Installation of ventilation systems
- 05
Maintenance & Service
Materials and Processes
PVC
Corrosion-resistant plastic for volume flow controllers and system components
PPs
Used for volume flow controllers without auxiliary energy as well as other corrosion-resistant system parts
Plastic (corrosion-resistant)
Base material for fans, plastic systems and AHU units
Non-combustible mineral wool
Insulation material for moisture-proof and abrasion-resistant duct silencers
Sites

Schwalbach am Taunus
DEHLU Monsun GmbH site (former, Am Kronberger Hang 3B)
- Materials
- Plastic (PVC, PPs)

Frankfurt am Main
DERödelheim site, In der Kron 6-8
Products and Components


Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of corrosion-resistant plastic fans (axial fans)Assembly | – | – | – | – | Plastic (corrosion-resistant) |
| Manufacture of plastic systems and AHU unitsAssembly | – | – | – | – | Plastic |
| Installation of ventilation systemsAssembly | – | – | – | – | – |
| Roof fans for small and medium air volumes (ATEX Zone 1 & 2, EC motor option)Assembly | – | – | – | – | corrosion-resistant materials |
| Volume flow controllers with auxiliary energy (±5% control accuracy, airtight per DIN 1946-4)Assembly | ±5% | – | – | – | – |
| Volume flow controllers without auxiliary energy (volume flow 75-3200 m³/h)Assembly | – | – | – | 75 m³/h – 3200 m³/h | PVC, PPs, special materials |
| Plastic heat exchangers (recuperators)Assembly | – | – | – | – | Plastic |
| Duct silencers made of non-combustible mineral woolAssembly | – | – | – | – | non-combustible mineral wool |
| Maintenance and service of AHU systemsAssembly | – | – | – | – | – |
Additional services
Quality
The company developed complex system technology with high functional and operational reliability; volume flow controllers are tight-closing and airtight per DIN 1946-4. No verified certificates are available.
| Evidence | Schwalbach am Taunus |
|---|---|
| DIN 1946-4 (airtight, tight-closing) |
History
- 1949
Monsun established as a trademark for project management and high-quality AHU system construction
- 1989
Commercial register entry of HLU Monsun GmbH (08.03.1989)
- 2018
Renaming of Monsun GmbH to HLU Monsun GmbH as of 01.01.2018; merger of the Maintenance & Service division with Hürner-Funken GmbH into Hürner Luft- und Umwelttechnik GmbH as of 25.01.2018
- 2019
Full integration of HLU Monsun GmbH into Hürner Luft- und Umwelttechnik GmbH as of 01.01.2019