valve systems

flap systems:
Basically, modern flap systems can be divided into two types:
 
Negative pressure:
This system uses vacuum to control the exhaust flaps. The vacuum is switched to the exhaust flap with the help of a switching valve in order to change its state. A pressure accumulator is used to ensure that there is always enough vacuum available for switching. This enables the exhaust flaps to be controlled even in driving conditions where there is insufficient vacuum available at the engine. Whether the flaps are open or closed can depend on many factors such as driving mode, engine load, speed, etc. This system is currently the most common and very reliable.
 
Electrical:
With a fully electric system, vacuum is no longer required for steering. The flap is moved to the desired position using a servomotor. With this system, too, the flap position depends on the driving mode, engine load, speed, etc. and can only be influenced to a limited extent by the user himself. Such systems have become more and more common in recent years. How reliable the systems are remains to be seen.
 
Would you like to control your exhaust flaps completely manually? Then contact us!