Ưu điểm kỹ thuật quan trọng
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High-Capacity Flow Design: Through the application of aerodynamic and hydrodynamic design principles, the EHAT achieves 30% to 40% higher capacity than conventional valves of comparable size. This allows for smaller valve bodies to handle high-volume high-pressure flows.
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Balanced Plug Stability: The balanced plug architecture equalizes process pressure across the trim. This drastically reduces the actuator thrust required to modulate the valve, allowing for smoother, high-precision control even at extreme pressure differentials.
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Rugged Drilled-Hole Cage Guiding: Standard drilled-hole cages provide superior mechanical strength and resistance to vibration. The plug is continuously supported throughout its stroke, protecting the valve from the mechanical stresses inherent in severe service.
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High-Temperature Shutoff: For thermal extremes, the EHAT can be equipped with metal C-seals or Bore Seals. These permit Class V shutoff at temperatures up to 593°C (1100°F), ensuring reliable performance in high-temperature steam and hydrocarbon isolation.
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Intermediate Pressure Ratings: With buttwelding end connections and non-destructive testing, the EHAT can conform to ASME Intermediate Special Ratings. This allows for safe operation at pressure/temperature levels that exceed standard Class 2500 ratings.
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Precise Low-Flow Control: For applications requiring modulation of very low flow rates, the EHAT is available with Micro-Form or Micro-Flute valve plugs, providing excellent rangeability and protecting against “wiredrawing” erosion at small openings.
Ma trận hiệu suất kỹ thuật
| Tính năng | Chi tiết |
| Kiểu van | Thân góc (Cổng đơn) |
| Hành động cắm | Cân bằng (Ấn xuống để đóng) |
| Hướng dẫn | Lồng có lỗ khoan chắc chắn |
| Lớp áp suất | Đến CL2500 và các chứng chỉ đặc biệt trung cấp. |
| Nhiệt độ tối đa | Up to 593°C (1100°F) with metal seals |
| Lớp tắt | Đến cấp độ V hoặc VI |
Ứng dụng chính
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Main Steam and Turbine Bypass: Managing high-pressure, high-temperature steam in utility power plants.
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Severe Service Hydrocarbon: Precise pressure regulation in high-pressure refining and production units.
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Boiler Feedwater: Stable modulation of high-pressure liquid where vibration and cavitation resistance are essential.
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Van thông hơi và thoát nước khẩn cấp: Hệ thống xả áp và cách ly công suất lớn trong các hệ thống tiện ích áp suất cao quan trọng.
