O-ring seals We have already told you an overview of the front. For O-rings, it has its own advantages in terms of sealing. What do you know about O-rings? The following points to understand.

1. Small size and easy to assemble and disassemble. Since the O-ring itself and the mounting structure are extremely simple and standardized, installation and replacement are very easy. Both static and dynamic seals can be used, and there is almost no leakage when used as a static seal.

2. Use a single O-ring seal with a two-way seal.

3, the dynamic friction resistance is small.

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

In other words, the O-ring seal has a simple structure, easy disassembly, good sealing and moderate price, so this is an advantage of it, and it is also the price/performance ratio we consider when choosing.

O-ring seal is abbreviated as O-ring, which is a rubber ring with a circular cross section. O-rings are the most widely used seals in hydraulic and pneumatic sealing systems. O-rings are well sealed and can be used in both static and reciprocating seals; they can be used alone and are an essential part of many combined seals. Its wide application range, if the material is properly selected, can meet the requirements of various sports conditions, the working pressure can be from 1.33 × 105Pa vacuum to 400MPa high pressure; temperature range can be from -60 ° C to 200 ° C.

O-ring seal specification method is: inner diameter Фi × wire diameter d, such as: O-ring 20*2.4, II-2GB1235-76, 20 represents the inner diameter of the large circle is 20 mm, 2.4 represents the cross section of the apron The diameter is 2.4 mm, II-2 stands for the type of rubber used, GB1235 stands for the standard number, and 76 stands for the standard publication year. By selecting the right rubber material and the appropriate formula design, it realizes oil, water, air, gas and Effective sealing of various chemical media. The temperature range is wide (-60 ° C ~ +220 ° C), the pressure can be up to 1500Kg / cm2 when used in fixed use (combined with the reinforcing ring).

This is a simple overview of O-rings, from which we can have a simple understanding of O-rings.