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The functions of various sealing rings

29 04, 2024

Industry Updates

1. The V-shaped sealing ring is an axially acting elastic rubber sealing ring used as a pressureless seal for the rotating shaft. The sealing lip has good mobility and adaptability, can compensate for large tolerances and angle deviations, prevent internal grease or oil from leaking outward, and can also prevent the intrusion of external splashing water or dust.

2. O-type sealing rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. V-shaped sealing rings are generally installed in grooves with a rectangular cross-section on the outer or inner circle to seal.

3. Y-shaped sealing rings are widely used in reciprocating sealing devices. In addition, there are spring tension (spring energy storage) sealing rings, which add a spring to the PTFE sealing material, including O-shaped springs, V-shaped springs, and U-shaped springs.

4. YX type sealing ring for hole

Product use: used for sealing of pistons in reciprocating hydraulic cylinders. Scope of application: TPU: general hydraulic cylinders, general equipment hydraulic cylinders. CPU: Hydraulic cylinders for engineering machinery and oil cylinders for high temperature and high pressure. Material: polyurethane TPU, CPU, rubber

Product hardness: HS85±2°A Working temperature: TPU: -40~+80℃CPU: -40~+120℃ Working pressure: ≤32Mpa Working medium: hydraulic oil, emulsion.

5. Retaining ring for YX type hole

Product usage: This standard is suitable for use with YX-type sealing rings when the working pressure of the oil cylinder is greater than 16MPa, or to protect the sealing ring when the oil cylinder is eccentrically stressed. Working temperature: -40~+100℃

Working medium: hydraulic oil, emulsion, aquatic products Hardness: HS92±5 Material: PTFE

6. YX type sealing ring for shaft

Product use: used for sealing piston rods in reciprocating hydraulic cylinders. Scope of application: TPU: general hydraulic cylinders, general equipment hydraulic cylinders. CPU: Hydraulic cylinders for engineering machinery and oil cylinders for high temperature and high pressure.

Material: polyurethane TPU, CPU, rubber Product hardness: HS85±2°A Working temperature: TPU: -40~+80℃CPU: -40~+120℃ Working pressure: ≤32Mpa

Working medium: hydraulic oil, emulsion

7. YX type retaining ring for shaft

Product usage: This standard is suitable for use with YX-type sealing rings when the working pressure of the oil cylinder is greater than 16MPa, or to protect the sealing ring when the oil cylinder is eccentrically stressed. Working temperature: -40~+100℃.

Additionally, the V-shaped sealing ring and the O-type sealing rings can be effectively combined in hydraulic systems to ensure comprehensive sealing performance. While the V-shaped sealing ring is adept at handling rotational movements, preventing the leakage of internal fluids, and shielding against external contaminants, the O-type sealing rings excel in static and low-speed dynamic applications.

By strategically using these rings in their respective strengths, engineers can design systems that maximize durability and efficiency. For example, the O-type sealing rings may be utilized in sections where small movement occurs, ensuring a tight seal, whereas the V-shaped sealing ring is more suitable for areas subject to rotational motion or where tolerance compensation is required. This combination allows for enhanced system reliability in various industrial applications, including high-pressure hydraulic cylinders, where maintaining the integrity of the seal is critical to the system's overall performance.