Product Overview

The three-piece flange ceramic core ball valve is a high-performance valve specially designed for harsh working conditions. It combines the wear-resistant and corrosion-resistant properties of ceramic materials with the convenient maintenance features of the three-piece flange structure. It is widely used in industries such as petrochemicals, metallurgy, papermaking, power stations, and coal mining, and can be used in various material transportation systems including acids, bases, salts, gases, liquids, high-temperature steam, slurries, and ashes. It is also suitable for fields with high hygiene requirements such as food and medicine.

Technical Specifications

Nominal diameter: DN15 - 300mm 
Nominal pressure: 1.0 MPa to 6.4 MPa 
Applicable temperature: Up to +600℃ (alumina ceramic) or +1400℃ (silicon carbide ceramic) 
Valve body material: Stainless steel (304, 316L), carbon steel (WCB), etc. 
Valve seat material: Ceramic or ceramic + PTFE/graphite composite (enhanced sealing performance) 
Connection method: Flange connection 
Structural form: Three-piece type 
Sealing grade: ANSI Class VI (zero leakage), ISO 5208 Grade A 
Flow characteristics: Approximately proportional (high Cv value, low flow resistance) 
Anti-blistering valve stem: ISO 5211 standard 
Fire protection design: Compliant with API 607/6FA 
Anti-static structure: EN 13763 (ceramic spheres require special treatment)