ceramic ball valve

resistance to strong acid,strong alkali,salt and gas of deleterious,long contact fatigue life,high hardness,resistance to wear

Silicon nitride(Si3N4)

Key Properties

1,  High strength over a wide temperature range

2,  High fracture toughness

3,  High hardness

4,  Outstanding wear resistance ,both impingement and frictional modes

5,  Good thermal shock resistance

6,  Good chemical resistance

Typical Uses

1,  Rotating bearing balls and rollers

2,  Cutting tools

3,  Engine moving parts-valves,turbocharger rotors

4,  Engine wear parts-cam followers,tappet shims

5,  Turbine blades,vanes,buckets

6,  Metal tube forming rolls and dies

7,  Precision shafts and axies in high wear environments

8,  Weld positioners

Silicon Carbide(SSiC)

Key Properties

1,  Low density

2,  High strength

3,  Low thermal expansion

4,  High thermal conductivity

5,  High hardness

6,  High elastic modulus

7,  Excellent thermal shock resistance

8,  Superior chemical inertness

Typical Uses

1,  Fixed and moving turbine components

2,  Suction box covers

3,  Seals,bearings

4,  Ball valve parts

5,  Hot gas flow liners

6,  Heat exchangers

7,  Semiconductor process equipment

Zirconium Oxide(ZrO2)

Key Properties

1,  Use temperatures up to 2400°C

2,  High density

3,  Low thermal conductivity (20% that of Alumina)

4,  Chemical inertness

5,  Resistance to molten metals

6,  Lonic electrical conduction

7,  Wear resistance

8,  High fracture toughness

9,  High hardness

Typical Uses

1,  Precision ball valve balls and seats

2,  High density ball and pebble mill grinding media

3,  Rollers and guides for metal tuble forming

4,  Thread and wire guides

5,  Hot metal extrusion dies

6,  Deep well down –hole valves and seats

7,  Powder compacting dies

8,  Marine pump seals and shaft guides

9,  Oxygen sensors

10,              High temperature induction furnace susceptors

11,              Fuel cell membranes

12,              Electric furnace heaters over 2000°C in oxidizing atmospheres

Silicon Carbide(Al2O3)

Key Properties

1,  Low density

2,  High strength

3,  Low thermal expansion

4,  High thermal conductivity

5,  High hardness

6,  High elastic modulus

7,  Excellent thermal shock resistance

8,  Superior chemical inertness

Typical Uses

1,  Fixed and moving turbine components

2,  Suction box covers

3,  Seals,bearings

4,  Ball valve parts

5,  Hot gas flow liners

6,  Heat exchangers

7,  Semiconductor process equipment

ceramic ball valve