PressureWave tanks are ideally suited for a wide range of applications, including booster systems, thermal expansion, irrigation systems, and hydraulic hammer arresting. This is held against the wall of the tank with a steel clench ring. The brass air valve, sealed by a threaded O-ring valve cap, prevents air leaks. The diaphragm and liner are both reinforced in specifi c wear areas for longer life. All internal parts including the air valve are rounded to prevent piercing of the diaphragm in extreme conditions.