What material can be the sealing faces of mechanical seals

What material can be the sealing faces of mechanical seals  

Sealing ring is a kind of sealing material, which is applied to various seals, including rubber seals and mechanical seals. There are several perfect material can be used for seal faces .

Below is the sealing faces material with their features :

1. Alumina Sealing Ring

Zirconia sealing ring is also called ceramic sealing ring. It is a kind of medium-sized sealing ring mainly made of alumina material and processed. It mainly has high temperature resistance and high strength.

2. Graphite Sealing Ring

Graphite sealing ring is a kind of sealing material with wear resistance, which is mainly made of graphite material and is produced by sintering process.

3. Cemented /tungsten Carbide Sealing Ring

Cemented /tungsten carbide sealing ring is a kind of heavy wear-resistant sealing material, which is made of cemented carbide and has the same manufacturing process as silicon carbide sealing ring.

4. Carbon-graphite sealing rings

Carbon-graphite sealing ring is a new type of sealing material based on graphite. It is a sealing ring made by adding carbon into graphite and sintering at high temperature.

5. Silicon Carbide Sealing Ring

Silicon carbide sealing ring is mainly made of silicon carbide. It is a kind of ring sealing material made by various processes. It has good hardness and corrosion resistance.