Wear-resistant structure: The valve core uses a combination of alumina ceramic plates and a stainless steel valve sleeve, reducing wear through line contact sealing or a lever-type valve stem design.
Anti-clogging design: The Y-shaped flow channel or flat-bottom valve body structure reduces material deposition, combined with a self-cleaning function for discharge.
Installation adaptability: Supports welding, clamp, or threaded connections, facilitating integration into existing piping systems.
Regarding the requirements for alumina discharge valve core sleeves, considering wear resistance, high purity, and material characteristics, the following is a summary of key information:
Ⅰ. Core Material Characteristics
1. Alumina Ceramic Components: High-purity alumina (92% alumina/95% alumina/99% alumina) possesses a hardness of HRA85 or higher, with wear resistance more than 10 times that of metal, and can withstand high-temperature environments up to 350℃.
The mirror-polished ceramic surface reduces material adhesion and improves sealing performance, making it suitable for abrasive conditions involving high-concentration alumina slurries.
2. 304 Stainless Steel Valve Sleeve: 304 stainless steel provides corrosion resistance and mechanical strength, suitable for various chemical media (such as particles, oils, etc.), but should be avoided in environments containing fluoride ions or strong alkalis.
The design of the valve sleeve and ceramic insert needs to consider the difference in thermal expansion coefficients, usually adjusted through flexible adhesives or fiber buffer layers.
Ⅱ.Application Scenarios and Advantages
1. Applicable Fields: High-wear slurry conveying systems in alumina production, metallurgy, mining, etc., as well as corrosion-resistant applications in the chemical and pharmaceutical industries.
2. Performance Advantages: Ceramic components extend valve life by more than 3 times, reducing maintenance frequency; the 304 stainless steel casing meets high-pressure requirements and ensures system stability.
Supports custom specifications.
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