重要な技術的利点
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High-Pressure Capability: While sharing the same V-notch technology as other Vee-Ball models, the V300 is specifically engineered for ASME Class 300 service. Its increased wall thickness and robust flanged construction provide a safe and durable solution for higher-energy piping systems.
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Modified Equal Percentage Characteristic: The precisely contoured V-notch ball provides a modified equal percentage flow characteristic. This allows for excellent rangeability and stable control even when the valve is operating at low travel, which is critical for minimizing process variability.
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Shearing Action for Severe Service: The interaction between the V-notch ball and the seal creates a powerful shearing action. This allows the valve to easily cut through fibrous slurries, entrained solids, or sticky fluids that would cause standard globe valves to plug or fail.
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Simplified In-Line Maintenance: The V300 is designed for operational efficiency. The ball seal can be inspected and replaced from the valve inlet without the need to remove the actuator or disassemble the valve’s drive train, significantly reducing labor time during outages.
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Structural Integrity: The one-piece valve body eliminates the leak paths associated with two-piece bolted designs. This enhances safety, especially in high-pressure or hazardous chemical services where maintaining a tight pressure boundary is paramount.
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Advanced Stem Sealing: To protect against fugitive emissions, the V300 supports the ENVIRO-SEAL packing system. This live-loaded design provides a constant sealing force on a highly polished shaft, ensuring long-term environmental compliance and reduced maintenance.
技術性能マトリックス
| 特徴 | 詳細 |
| バルブスタイル | フランジ付きセグメントボール（Vノッチ） |
| 流れ特性 | 修正等百分率 |
| 圧力クラス | ASME Class 300 |
| ボディ構造 | 一体型フランジ |
| Seal Options | HD Metal, TCM, or Flat Metal Seals |
| 材料適合性 | NACE MR0175 / ISO 15156 対応 |
主な用途
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High-Pressure Steam Throttling: Reliable control in utility and process steam headers where Class 300 ratings are required.
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Chemical Process Loops: Managing corrosive or high-pressure reactants with NACE-compliant materials.
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Pulp and Paper: Handling high-consistency stock and chemical recovery fluids.
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Oil and Gas Production: Controlling high-pressure hydrocarbon streams and gas lift applications.
