Turcon® Dual Piston Ring is typically energised by a stainless steel wave-shaped spring.The characteristics of the seal are very low friction, long service life and a controlled leakage over the rings. The Turcon® Dual Piston Rings can be supplied with various spring types, dependent upon the application.A full range of sizes are available, glands corresponding to MIL-G 5514F and AS4716 Bore sizes.