O-ring in the front we have told you about an overview of it, for O-ring it has its own advantages in terms of sealing, for O-ring you also know what content, you can understand from the following points.

1, small structure size, convenient installation and disassembly. Because the O-ring itself and the installation site structure are extremely simple and standardized, installation and replacement are very easy. Static and dynamic seals can be used, and there is almost no leakage when used as static seals.

2, the use of a single O-ring, two-way sealing effect.

3, the dynamic friction resistance is small.

4, low price. The variety of materials can be selected according to different fluids: nitrile butadiene rubber (NRB), fluorine rubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene rubber (CR), butyl rubber (BU), polytetrafluoroethylene (PTFE), natural rubber (NR) and so on.

In other words, the O-ring has a simple structure, convenient disassembly, good sealing, and moderate price, so this is one of its advantages, and it is also the cost performance that we consider when choosing.

O-ring is referred to as O-ring, which is a rubber ring with a circular cross-section. O-ring is the most widely used seal in hydraulic seal and pneumatic seal system. O-ring has good sealing property, can be used for static sealing, also can be used for reciprocating sealing; Not only can be used alone, but also is the basic component of many combined sealing devices. It has a wide range of application, if the material is selected properly, it can meet the requirements of various movement conditions, and the working pressure can be from 1.333×105Pa vacuum to 400MPa high pressure; The temperature range is from -60℃ to 200℃.

O-ring specification marking method: inner diameter i× linear diameter d, such as: O-ring 20*2.4, II-2GB1235-76, 20 represents the inner diameter of the large ring is 20 mm, 2.4 represents the section diameter of the rubber ring is 2.4 mm, II-2 represents the type of rubber used, GB1235 represents the standard number, 76 represents the standard announcement age through the selection of appropriate rubber materials and appropriate formula design, To achieve the effective sealing effect of oil, water, air, gas and various chemical media. The temperature is used in a wide range (-60℃ ~ +220℃), and the pressure can reach 1500Kg/cm2 when fixed use (and the reinforcement ring is used).

This is a simple overview of the O-ring, from here we can have a simple understanding of the O-ring.