Product Overview

The three-piece welded tube ceramic core ball valve is a high-performance valve specially designed for harsh working conditions. It uses ceramic as the valve core material, combining the wear-resistant and corrosion-resistant properties of ceramic materials with the convenient maintenance feature of the three-piece structure. The valve body is equipped with welded tubes at both ends (usually carbon steel or stainless steel), suitable for the ** installation of high-pressure pipeline systems, with better sealing performance than flange connections. It is widely used in various industrial fields. It is applicable to the petrochemical, metallurgical, papermaking, power station, coal mining industries, and can be used in various acid, alkali, salt gas, liquid, high-temperature steam, slurry and ash, material transportation systems, as well as in industries with high hygiene requirements such as biopharmaceuticals, food and beverage.

Technical Specifications

Valve type: Three-piece structure, with welded connection 
Valve body material: 304/316 stainless steel (other alloys are also available as options) 
Connection method: Welding type 
Nominal diameter: 15mm to 200mm 
Nominal pressure: 1.0 MPa to 10.0 MPa 
Temperature range: -20℃ to +450℃ (adjustable according to sealing material) 
Sealing grade: ANSI/FCI 70-2 Class VI (Zero leakage) 
Welding end standard: Groove type: V-shaped or U-shaped (according to pipeline standards) 
Design and manufacture: API 6D, GB/T 12237 
Pressure Test: API 598 
Welding Specifications: ASME B31.3 / GB/T 20801 
Fire protection design: Compliant with API 607/API 6FA