Compressor Surge Tanks

Surge tanks are commonly arranged with a compressor, or compressors, to provide additional air in to the tank if the liquid level rises above the normal condition. The change in level is detected by a level instrument, which may be a simple bypass level gauge containing a magnetic float which rises and falls with the liquid level activating magnetically sensitive switches attached to the level gauge or a more advanced level instrument, such as a radar or ultrasonic level detection instrument.