AD Piston Ring manufactures a Hook Step Piston Ring, which is a custom joint configuration, developed by us for best use as a sealing ring in blind installations.
It is ideal for use in sealing applications requiring blind installations or wherever restricting ring movement is necessary during installation. It’s an excellent by-directional seal, it seals on two surfaces. Hook step piston rings can be made of cast iron and bronze aluminum materials.
Call us to best determine your application and material.
Hook step piston rings are available in 2 inches to 30 inches.