Compared to other types of seals, O-rings have the following advantages:
1. Suitable for various sealing methods: static sealing, dynamic sealing
2. Suitable for various materials and applications; dimensions and grooves are standardized, ensuring high interchangeability
3. Suitable for various motion modes: rotary motion, axial reciprocating motion, or combined motion (e.g., rotary-reciprocating combined motion)
4. Suitable for various sealing media: oil, water, gas, chemical media, or other mixed media.
By selecting appropriate rubber materials and designing suitable formulations, effective sealing of oil, water, air, gas, and various chemical media can be achieved. Wide operating temperature range (-60℃ to +220℃); pressure up to 1500 kg/cm² when used in fixed applications (with reinforcing rings).
5. Simple design, compact structure, and easy installation and removal.
The cross-sectional structure of the O-ring is extremely simple and has a self-sealing effect, ensuring reliable sealing performance.
Because the O-ring itself and its installation parts are extremely simple in structure and standardized, installation and replacement are very easy.
6. Wide variety of materials: Available to suit different fluids, including nitrile rubber (NBR), fluororubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), chloroprene rubber (CR), butyl rubber (BU), polytetrafluoroethylene (PTFE), and natural rubber (NR).
7. Low cost and relatively low dynamic friction resistance.