The O-ring is wear resistant, with excellent sealing characteristics, high service life, and dynamic pressure seal service life 5-10 times higher than that of basic rubber seal commodity, which can be achieved dozens of times. Under some specifications, it can be used with the sealing plate.

Rubber O-ring can be installed on various mechanical equipment, and can be used for sealing in the fixed temperature, pressure, and different hydraulic press and acetylene gas chemical substances in the state of in situ or in motion. In hydraulic cylinder, ship, car, hardware, electronic components, electrical products, aerospace machinery equipment, industrial equipment, and various electrical instruments, many types of sealed electronic devices are used. Rubber O-ring is important for static sealing and continuous fitness seal. When used to rotate the sports fitness seal, it is only limited to the low speed gear rotating sealing machine and equipment. Rubber O-ring is generally installed with a pipe groove with a rectangular section on the outer circle or inner hole to seal. Rubber O-ring still has high quality sealing and shock absorption in the environment of corrosion resistance, strong oxidant, grinding, analytical chemical etching and so on. Therefore, rubber O-ring is a wear-resistant seal used in four column hydraulic press and automatic control principle system.

O-ring is more than other sealing rings, and has the following advantages:
1. It is suitable for various sealing methods: static data seal, dynamic seal, suitable for various main use materials, specification and pipe trench have been standardized, and tolerance matching is strong
2. Suitable for a variety of sports methods: rotating exercise, shaft diameter repeated exercise or forming fitness exercise (such as rotating reciprocating to form fitness exercise)
3. Suitable for various sealing media: oil, water, gas, organic chemical medium or other mixed medium. According to the suitable rubber material and the appropriate secret formula design scheme, the reasonable sealing effect of oil, water, gas, liquefied gas and various organic chemical medium is carried out. The temperature application covers a wide range (-60 ℃ ~+220 ℃), and the working pressure of the fixed fixed application reaches 1500kg/cm2 (used in combination with the reinforcing ring).
4. The design scheme is simple, the structure is exquisite, and the installation and disassembly are convenient. The cross section of O-ring is simple and has self sealing effect and strong sealing effect. Because O-ring itself and equipment location are simple and standardized, it is easy to install and remove.
5. There are many types of materials. It can be selected according to different liquids: cyano butadiene rubber (NBR), fluororubber (FKM), silicone rubber (VMQ), EPDM, Cr, Bu, PTFE, NR, etc
6. Cheap cost
7. The dynamic friction is relatively small

It is an important step to choose the suitable sealing ring. O-ring can be used to most natural environment and has great advantages.