
TA2 Titanium National Standard Flange Ball Valve is a specialized, high-performance solution designed for environments where even the best stainless steels fail. Utilizing TA2 (Grade 2 Commercially Pure Titanium) and adhering to GB/T 12237 standards, this valve offers an extraordinary strength-to-weight ratio and near-perfect corrosion resistance in highly oxidizing and chloride-rich media.
Description
TA2 (Commercially Pure Titanium) is the workhorse of the titanium family, offering a unique set of properties for critical industrial applications:
- Exceptional Corrosion Resistance: Titanium spontaneously forms a stable, protective oxide film. It is virtually immune to corrosion from seawater, wet chlorine, chlorites, and oxidizing acids like nitric acid.
- High Strength-to-Weight Ratio: Offers the strength of many steels but at roughly 57% of the weight, reducing the overall load on piping systems.
- Temperature Stability: Maintains mechanical integrity across a wide range of temperatures, from cryogenic levels up to 300°C.
- Biocompatible & Non-Toxic: Ideal for applications where preventing fluid contamination is paramount.
Features
- GB Standard Compliance: Built to GB/T 12237 (design), GB/T 9113 (flange), and GB/T 12221 (face-to-face) specifications, ensuring easy replacement and integration in domestic Chinese infrastructure.
- Full Bore Flow: The internal flow path is consistent with the pipe diameter, eliminating turbulence and pressure drops—essential for high-flow seawater and chemical systems.
- Zero-Leakage Performance: Precision-ground titanium balls paired with high-performance PTFE or specialized polymer seats ensure a bubble-tight shut-off.
- Erosion-Corrosion Resistance: Highly resistant to the high-velocity flow of seawater and slurries that typically cause erosion in copper-based alloys.
Specifications
| Feature | Specification |
| Design Standard | GB/T 12237 |
| Flange End | GB/T 9113 / JB/T 79 |
| Face-to-Face | GB/T 12221 |
| Body Material | Titanium TA2 (Grade 2 / UNS R50400) |
| Pressure Rating | PN16, PN25, PN40 |
| Temperature Range | -29°C to 200°C (Soft Seat) |
| Testing Standard | GB/T 13927 / JB/T 9092 |
Applications
- Marine & Offshore: Seawater cooling, ballast water treatment (BWTS), and offshore oil and gas production.
- Chemical & Desalination: Multi-stage flash (MSF) and reverse osmosis (RO) desalination plants.
- Chlor-Alkali Industry: Handling wet chlorine gas, sodium hypochlorite, and brine solutions.
- Aerospace & Defense: Weight-sensitive and highly corrosive environments.


