A rubber sealing ring is an annular cover composed of one or several parts, fixed on one ring or gasket of a bearing and in contact with another ring or gasket or forming a narrow labyrinth gap to prevent lubricating oil leakage and foreign object intrusion. Metal rubber sealing ring is made of metal rubber, which is a homogeneous elastic porous material. It not only has the elasticity of rubber, but also has the excellent characteristics of metal, and can work at temperatures of -150~800 ℃. At the same time, it can also withstand pressure and has a dual function of pressure bearing and sealing within a certain range. Its main uses include the following:

1. Fiberglass pipes; Fiberglass sand filled pipeline; Fiberglass top pipe; Cable protection conduit; Flue gas desulfurization pipe; Coal mine gas drainage pipe; Power plant desulfurization and dust removal pipes;

2. Sealing of municipal water supply and drainage pipelines;

3. Sealing of various process pipelines (petroleum, chemical, metallurgical, papermaking, sewage, seawater desalination, food brewing and beverage processing, pharmaceuticals, etc.);

4. Sealing of sewage collection and transportation pipelines, as well as reclaimed water pipelines;

5. Sealing of drinking water transmission pipelines and distribution pipes;

6. Sealing of oilfield water injection pipes;

7. Sealing of hot water delivery pipelines and hot spring water delivery pipelines