Ceramic Knife Gate Valve,slurry gate valve

Compact, abrasion-resistant ceramic-seated knife gate valve engineered for heavy slurry and solids-laden services. The valve features a short-face design and a ceramic sealing surface that resists wear from hard particles and fibrous material, making it suitable where conventional metal-seated knife gate valves would erode or plug.

Key features

• Ceramic sealing surface (engineering/structural ceramics) for high abrasion resistance and extended service life
• Single-seat design to reduce sticking and accumulation of ash or solids
• Short overall length and lightweight construction for easier installation in tight piping layouts
• Available with flanged or wafer connections
• Operable manually, electrically, or pneumatically

Technical specifications

• Size range: DN50–DN600 (NPS2–NPS24)
• Pressure classes: Class 150 / PN6 / PN10
• Temperature rating: up to 200 °C
• Body materials: WCB (carbon steel), CF8, CF8M, CF3M (stainless steel grades)
• Sealing material: engineering/structural ceramics
• Pressure testing: GB/T13927, API 598
• Face-to-face/installation dimensions: GB/T12221, API 609
• Valve body standards: GB/T12224, ASME

Typical applications

• Ash handling and ash conveying systems at power plants
• Coal residue, mine tailings and slurry lines in mining and steel plants
• Paper pulp and fiber handling in pulp and paper industry
• Sewage, industrial slurry and decontamination plants

Advantages for industrial buyers

• Improved wear life in abrasive and particulate-laden services compared with metal-seated knife gate valves
• Reduced downtime and maintenance from ceramic abrasion resistance and single-seat anti-clog design
• Flexible actuation options (manual/electric/pneumatic) to suit process automation requirements

Available options include multiple body materials and connection types to match piping specifications and process conditions.