Pump mechanical seal work at high-speed rotation, withstand a certain pressure to prevent the media corrosion, temperature changes. Therefore, the requirements of the material in the following areas:
With the high modulus of elasticity, lower strength and coefficient of linear thermal expansion coefficient, excellent wear resistance and self-lubrication and good impermeability.
Prevent damage from medium corrosion, abrasion, dissolution, and swelling caused.
Good thermal conductivity, heat resistance, cold resistance and temperature mutation adaptability.