What Does The Size Of The Seal Ring Represent

The dimensions of the sealing ring mainly include the inner diameter, outer diameter and wire diameter, which are crucial to ensure the sealing effect and fit. Here is a detailed explanation of these sizes:

1‌.   inner diameter ‌ : refers to the diameter of the circular hole inside the sealing ring, which determines the size of the hole that the sealing ring can be installed. The bore size is usually used to identify the seal type, for example, the first number in the model number represents the bore size. ‌
‌2.  outer diameter ‌ : refers to the diameter of the outer circumference of the sealing ring, which determines the size of the outer space in which the sealing ring can be installed. For some applications, the size of the outside diameter can affect the sealing effect and fit. ‌ 23
‌ wire diameter ‌ : also known as the section diameter or thickness, refers to the thickness or width of the sealing ring. The size of the wire diameter directly affects the compression and sealing effect of the sealing ring. The wire diameter is usually used to describe the cross section size of the O-ring. ‌ 

3. In addition to the above basic dimensions, the sealing ring has other important parameters and characteristics to consider, such as material, hardness, operating temperature range, etc. Different seal materials have different physical and chemical characteristics and are suitable for different working environments and media. For example, silicone rubber seals are resistant to high and low temperatures, while fluororubber seals have excellent chemical resistance.