The application range and advantages of O-rings

The O-ring is suitable for being installed on various mechanical equipment, under the specified temperature, pressure, and different liquid and gas media, it can play a sealing role in static or moving state. Various types of seals are widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters element. O-rings are mainly used for static sealing and reciprocating sealing. When used for rotary motion seals, it is limited to low-speed rotary seals. The O-ring is generally installed in the groove with a rectangular cross-section on the outer or inner circle to play a sealing role. O-rings still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali resistance, grinding, and chemical erosion. Therefore, O-rings are the most widely used seals in hydraulic and pneumatic transmission systems.

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

--Suitable for a variety of sealing forms: static sealing, dynamic sealing

Suitable for a variety of uses Materials, dimensions and grooves are standardized, highly interchangeable

--Suitable for a variety of motion modes: rotary motion, axial reciprocating motion or combined motion (such as rotary reciprocating combined motion)

--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 appropriate formula design, the effective sealing effect on oil, water, air, gas and various chemical media can be achieved. The temperature range is wide (-60 ℃～+220 ℃), and the pressure can reach 1500Kg/cm2 in fixed use (used together with the reinforcing ring).

--Simple design, compact structure, easy assembly and disassembly

The cross-sectional structure of the O-ring is extremely simple, and it has a self-sealing function and reliable sealing performance.

Since the O-ring itself and the structure of the installation site are extremely simple and standardized, it is very easy to install and replace.

--Various materials

Can be selected according to different fluids: nitrile rubber (NBR), fluorine rubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene rubber (CR), butyl rubber (BU), poly Tetrafluoroethylene (PTFE), Natural Rubber (NR), etc.

--low cost

--The kinetic friction resistance is relatively small.