Lokring Technology
（重定向自Lockrings）
Lokring Technology is a privately held international company headquartered in Willoughby, Ohio that serves over 30 countries worldwide. The Chairman and President of the company is William Lennon, the grandson of Fred A. Lennon, founder of Swagelok.
Lokring designs patented, weld equivalent pipe and tube fittings such as couplings, flanges, elbows, adapters, and more. The unique technology of the patented Lokring fittings utilize Elastic Strain Preload (ESP), and possesses a metal to metal leak-free seal that compresses or swages the pipe/tube wall.