

Steel air exhaust diffuser, Ø 200 mm
Classic steel exhaust air valve with mounting ring
Quiet and efficient air distribution for your home or commercial space. The modern design seamlessly blends into any interior. Made of durable steel and designed for ceiling or wall mounting.
Silent operation
Designed to ensure a low sound level even at high pressure drops, guaranteeing maximum room comfort.
Adjustable airflow
The air flow is easily adjusted by rotating the central cone, allowing you to tailor ventilation to your needs.
Durable construction
Made of sheet steel and stove enamelled in white epoxy (RAL 9010) which gives a shiny and dirt-repelling surface.
Why choose this steel exhaust valve?
This steel exhaust valve is designed for spaces that demand exceptional comfort and silence. Thanks to its aerodynamic shape, air is extracted without unpleasant drafts or noise, even at higher system pressures. The included mounting ring ensures a quick and airtight installation.
Design and interior compatibility
The valve features a classic, modern design that suits most interiors -- from residential bedrooms and living rooms to offices. The surface is coated with white (RAL 9010) epoxy paint, providing a shiny, dirt-repelling finish. This means the diffuser will stay clean longer and require less maintenance.
Complete ventilation system
This model is an integral part of an efficient mechanical ventilation or heat recovery system. Together with properly selected ducts, silencers, and an AHU, it ensures optimal air balance in the rooms. The ORO Haus team is always ready to help you gather all the necessary components.
Key specifications
Below are the essential technical data to help you evaluate the diffuser's compatibility with your ventilation system.
| Parameter | Value |
|---|---|
| Material | Sheet steel, white epoxy coating (RAL 9010) |
| Mounting type | Ceiling or wall (with mounting ring) |
| Air direction | Extract |
| Adjustable flow | Yes -- by rotating central cone |
Dimensions
Physical dimensions of the valve and mounting ring based on the chosen connection diameter.
| Parameter | 100 mm | 125 mm | 160 mm | 200 mm |
|---|---|---|---|---|
| Outer diameter (OD) | 134 mm | 160 mm | 191 mm | 241 mm |
| Height (A) | 74 mm | 85 mm | 89 mm | 107 mm |
Diffuser installation is a quick and straightforward process that does not require highly specialized tools. It is recommended to follow standard ventilation system installation guidelines.
Mounting preparation
Before starting, ensure you have the correct diameter duct and sufficient space in the ceiling or wall to accommodate the mounting ring.
Duct and ring connection
The included mounting ring connects directly to the ductwork. To ensure a completely airtight seal, it is recommended to use appropriate sealing tapes or mastics.
Diffuser installation
Once the mounting ring is securely in place, the diffuser valve is easily inserted into the ring. The mechanism holds the diffuser firmly in position.
Airflow adjustment
The airflow is accurately adjusted by rotating the central cone of the diffuser. Once the required position is set according to the ventilation design, the cone is locked in place.
Cleaning and maintenance
The painted surface repels dirt, but if necessary, the diffuser can be easily wiped clean with a damp cloth. Regular cleaning ensures long-lasting aesthetics and uninterrupted airflow.

Complete your ventilation system with us
Find all the necessary components -- from flexible ducts and silencers to the most advanced heat recovery units. Buying a complete system ensures full compatibility.
Frequently Asked Questions
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