Usage: When the piston runs to the dead point, the width of the support ring goes beyond the continuous mirror surface of the cylinder, and when entering the valve socket or reaming, the non-cut complete ring type must be adopted
Feature: Since the ring and the ring always maintain an interference fit, the other high pressure cannot be opened, so that it cannot be smoothly returned after the continuous mirror of the cylinder is removed

Usage: Oblique cut design with pressure relief groove on the side. Can be used in cases where the radial thickness of the ring is limited
Feature: 1. easy to install
2. Even if the slit of the ring is turned downward due to the action of the gas force, the oblique slit design can ensure sufficient support

Usage: Can be used in situations where the radial thickness of the ring is limited. Pressure relief groove on the side, straight slit design
Feature: Easy to install

Usage: Standard support ring design, widely used in various working conditions
Feature: 1. The pressure relief groove is arranged on the circumferential surface and the side surface, which can greatly reduce the effect of gas force on the ring and prolong the service life.
2. oblique cut design, can ensure that the ring can also have enough support surface when the cut is directly below
3. easy to install

Usage: Two-petal design, often used in small bores
Feature: Pressure relief groove on side and circumference