shenxing ceramic high precision 99% alumina ceramic valve part protection tube

Common Applications Include:

1.Severe Service Ball Valves & Plug Valves:​ The protection tube would be placed around the valve stem. It prevents the corrosive, abrasive, or high-temperature fluid from eroding the metal stem, ensuring smooth operation and preventing seizures or leaks.

2.Knife Gate Valves:​ Used in industries like mining and pulp & paper to handle abrasive slurries. The tube protects the gate and stem mechanism from rapid wear.

3.Sensor Protection:​ It can serve as a thermowell or a sheath for temperature sensors (thermocouples, RTDs) or pressure sensors inserted into a pipeline. The alumina ceramic protects the sensitive sensor from chemical attack and physical damage.

4.High-Temperature or Corrosive Environments:​ Ideal for industries like:

•Chemical Processing:​ Handling acids, alkalis, and solvents.

•Petrochemical:​ In refineries with corrosive hydrocarbons.

•Power Generation:​ In systems with high-temperature steam or flue gases.

•Mining and Mineral Processing:​ For abrasive slurries and tailings.

•Steel and Metal Production:​ In high-heat furnaces and handling molten metals.



  • Exceptional Wear Resistance:​ Drastically extends the service life of the valve in abrasive applications, reducing downtime and maintenance costs.
  • Superior Corrosion Resistance:​ Ideal for handling aggressive chemicals where metal components would quickly fail.
    High-Temperature Capability:​ Maintains its structural integrity and properties in extreme heat.
  • Non-Stick Surface:​ The smooth, vitrified surface of alumina ceramic minimizes material buildup and sticking.
  • Electrical Insulation:​ Prevents galvanic corrosion and is safe for electrical applications.

 

Technical Parameters


 

Item Unit Zirconia ceramic 99% alumina ceramic 96% alumina ceramic 95% alumina ceramic Steatite ceramic Mullite ceramic Cordierite ceramic
Bulk density g/cm3 6 3.8 3.7 3.6 2.8 2.2 2.3
Water absorption % 0 0 0 0 0 12 12
Thermal Conductivity (w/m.k) 10 19-30 16-28 14-24 2-3 2-6 1.3-1.8
Resistance to thermal shock,Minimum TK? 70 150 140 140 80 150 300
Withstand voltage,Minimum KV 15 20 18 18 20 25 -
Flexural strength Mpa 1000 300 280 240 120 120 30
Sintering temperature 1500 1670 1600 1600 1250 1250 1250
Maximum working temperature 1200 1500 1200 1200 800 1000 1000

 

Application


 

Specifically used for high-temperature and high-voltage insulation parts, circuit substrates, high-temperature devices, etc. As the main representative of precision ceramic materials, it is widely used in industries such as semiconductors, petrochemicals, and electronics.

 

 

Advantages


 

1. we support OEM and ODM;
2. We have a professional R&D team and technical support;
3. We provide real-time logistics update information;
4. We support 24-hour online service;
5. We support T/T,L/c payment;
6. We have a professional QC team to check the quality before delivery.

 

Certificate


 

FAQ


 

1. How can you get quotation?
Please kindly send me your drawing with technic requirement and demand quantity.
If you don't have the drawing, please kindly courier samples to us. we will quote our best price in 24 hours.

2. How can you get samples?
We can supply free samples if we have them in stock. If we haven't produce the products, we can supply some free samples after getting tool fee. Please take note that the courier fee should be at destination.

3. What’s the lead-time for samples and batch orders?
It is 18days for supplying samples. It is around 25days for batch orders.

4. Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.

 

 


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