The eyelet is composed of a hollow metal ring, which is filled with inert gas, and the outer ring is generally made of alloy material. The unique material of the sealing ring can meet the requirements that other sealing parts cannot meet. Here introduce：
The material of the eyelet
The material of the eyelet introduce.
Nitrile-butyronitrile (NBR) operating temperature: -30℃～+120℃, good wear resistance, the sealing ring of this material has the lowest cost and is the most widely used, and is mostly used in gasoline, water, silicone oil, glycol-based hydraulic oil and other media. It is not suitable for use in polar solutions such as ozone and ketone nitro hydrocarbons.
EPDM (EPDM operating temperature: -55 ℃ ~ +150 ℃, good aging resistance, acid and alkali resistance. Water resistance, resistance to superheated water and water vapor.
Polyurethane rubber (PU, AU, EU) operating temperature: -45℃～+90℃, divided into polyether type and polyester type rubber, very good mechanical properties, quite wear-resistant, high hardness, good pressure resistance, wear resistance very good.