Titanium Alloy Bottom (Discharge) Ball Valve
The Titanium Alloy Bottom (Discharge) Ball Valve is a specialty isolation valve featuring a unique structure designed for mounting directly onto the bottom of chemical reactors, tanks, and vessels. Its primary function is to provide reliable, quick shutoff while minimizing material dead space and retention, making it ideal for the Fine Chemical, Pharmaceutical, and General Chemical industries.
🔑 Key Features and Specialized Design
- Minimized Dead Space (Zero Hold-up): The valve seat is positioned extremely close to the end face flange (the vessel connection), resulting in minimal material retention or “dead space.” This is crucial for applications requiring high purity, complete drainage, or frequent cleaning.
- Compact & Superior Sealing: The compact structure and specialized design ensure superior sealing performance, preventing leakage of valuable or hazardous media.
- Media Handling: Suitable for general corrosive fluids as well as fluids containing fine, soft solid particles or slurries.
🔬 Material Science and Corrosion Enhancement
The valve relies on the inherent chemical stability of Titanium’s “passive oxide film”.
| Corrosion Environment | Performance of Titanium | Enhancement Strategy (If Needed) |
| Neutral, Oxidizing, Weakly Reducing | The passive oxide film provides excellent, inherent stability. | Generally stable without modification. |
| High Temperature or Low pH Reducing | The stability of the oxide film may be compromised. | Strategies for Enhancement: Adding corrosion inhibitors (e.g., air, water, heavy metal ions), ion modification of the Titanium surface, or anodic treatment to improve corrosion resistance and surface hardness. |
⚙️ Specifications and Materials
| Parameter | Specification |
| Pressure Rating | PN1.0 – 4.0MPa | Class150 – 300Lb |
| Nominal Size | DN15 – DN200 | 1/2” – 8” |
| Applicable Medium | Oxidizing Corrosive Media |
| Actuation | Manual, Pneumatic, Electric |
| Main Component | Material Options (Titanium Grades) |
| Body / Bonnet / Ball (Core) | TA1, TA2, TA10, Gr2, Gr3 |
| Stem | TA1, TA2, TA10, Gr5, Gr2, Gr3 |
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