When choosing an O-ring, why choose a larger section? Follow the editor of FKM o-rings on sales for a brief understanding!
The seal is actually a sealing ring with a circular cross-section. It is suitable for the sealing of static gas and liquid media, as well as for the dynamic sealing of reciprocating and rotating motions. When purchasing, it should be based on the conditions of use. to choose. O-rings should be selected as large-section products as possible. Under the premise of the same gap, the volume of the seal squeezed into the gap should be smaller than the allowable value to be squeezed into. The seal can be said to be an effective and economical sealing element, it has a bidirectional sealing effect, and it is suitable for different types of static sealing or dynamic sealing occasions.

At the time of installation, whether it is radial or axial, it has initial compression, that is, it itself has initial sealing ability. In actual use, the sealing force generated by the system pressure and the initial sealing force are combined , a total sealing force will be formed, and the sealing force will increase as the system pressure increases. When purchasing O-rings, we should choose a large cross-section, so that when sealing, we can play a better sealing role.
The above is the introduction of FKM o-rings on sales: a brief introduction to the knowledge of the larger cross-section of O-rings when selecting them.