Exhaust flap AR4 - U (Vacuum)
Product number: A-011-081€273.70*
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Our AR2 series exhaust flaps are available in seven different sizes as standard, with inner diameters ranging from 51 to 89 mm.
They have been specifically designed for use in the middle and rear silencer area and impress with their high reliability. The maximum operating temperature is up to 350 °C (short-term).
Compatibility and Use
Compatibility
Adaptation U1 / Vacuum actuator (Closer): The flap is open in the unpressurized state (closes with vacuum).
Adaptation U2 / Vacuum actuator (Opener): The flap is closed in the unpressurized state (opens with vacuum).
The choice of the unpressurized state affects the start and failure behavior of the flap. During vehicle start, a short time is needed until the vacuum can be provided by the vehicle.
Please choose the state of the exhaust flaps as they should be positioned during vehicle start.
Use
The actuator is simply placed on top of our exhaust flap and screwed in.
Please check compatibility using the images! The actuator is not included in the scope of delivery.
Advantages
Material
We use only stainless steel of specification 1.4828 for the base body.
Construction
Our exhaust flaps are designed by us in Germany.
Manufacturing
The manufacturing of our exhaust flaps is done on CNC turning and milling machines 100 percent in Germany.
Notes
Since an exhaust flap is a product with very diverse application possibilities, it is not possible for us to define its usability based solely on simple parameters. For this reason, the following information must be strictly observed before you use our exhaust flaps.
The usability must be thoroughly tested by the exhaust system manufacturer. We generally do not grant approval for applications that have not been substantiated by a defined test run submitted to us. In the test run, the load must be demonstrated over at least 20,000 real driven kilometers. The tested exhaust flap must then be sent in for examination to apply for approval. We generally accept no liability should a flap mechanism fail or cause noise due to disregard of the notes.
Maximum exhaust temperature: 350°C (short-term)
Maximum pressure: 0.5 bar (short-term)