Compared with other types of sealing rings, O-ring has the following advantages:

1.Suitable for a variety of sealing methods: static seal, dynamic seal, suitable for a variety of use data, size and groove has been standardized, strong interchangeability

2. Suitable for a variety of motion methods: rotary motion, axial reciprocating motion or combined motion (such as rotary reciprocating combined motion)

3. Suitable for a variety of different sealing media: oil, water, gas, chemical media or other mixed media.Through the selection of appropriate rubber materials and the appropriate formulation planning, to achieve a useful sealing effect of oil, water, air, gas and various chemical media.Wide range of temperature (-60°C to 220°C), fixed use pressure up to 1500Kg/cm2 (used with reinforcement ring).

4. Simple planning, compact structure, convenient installation and disassembly. O-ring section structure is extremely brief, and has self-sealing effect, sealing performance is reliable.Because the O-ring itself and the structure of the device are extremely simple, and has been standardized, so the device is very easy to replace.

5. Lots of materials. It can be selected according to different fluids: cyanobutyl rubber (NBR), fluororubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene (CR), butyl rubber (BU), polytetrafluoroethylene (PTFE), natural rubber (NR), etc

6. Low cost

7. Relatively small friction resistance