CTS Dunk Test Systems are custom test solutions engineered to test parts to ensure they conform to manufacturer leak specifications and sized to meet production requirements. Dunk leak testing is a method of testing a part vessel or cavity for leaks by submersing a gas charged part in a tank to identify a leak by a stream of air bubbles escaping from the part. Compressed air is commonly used for dunk testing and will test the part at various pressures and time.