Ưu điểm kỹ thuật quan trọng
Balanced Plug Stability: The HPD utilizes a balanced valve plug to equalize the process pressure across the trim. This design allows for smooth, high-resolution control at extreme pressure differentials without the need for oversized, high-thrust actuators.
Rugged Cage Guiding: To combat the vibration and mechanical noise inherent in high-pressure service, the HPD features heavy-duty cage guiding. The cage provides continuous support to the plug throughout its travel, ensuring mechanical integrity and extending the life of the internal components.
Premium Sealing Technology: The HPD is equipped with high-performance spiral-wound gaskets made from Alloy 600/Graphite or Alloy X750/Graphite. These materials are chosen for their superior resilience under the intense thermal cycling and pressure fluctuations common in high-pressure steam and hydrocarbon service.
Increased Pressure/Temperature Ratings: For applications that exceed standard limits, HPD valves with weld-end fittings can be supplied with intermediate ratings per ASME B16.34. This allows the valve to operate safely at pressures higher than standard Class 900 or 1500 ratings.
Wear-Resistant Trim: Hardened stainless steel is used for the cage, valve plug, and other critical trim parts as a standard feature. This provides excellent resistance to erosion and “wiredrawing” in high-velocity flow conditions.
Quick-Change Trim: Maintenance is streamlined through a top-entry design. All trim components can be removed and replaced using common tools without taking the valve body out of the pipeline, significantly reducing downtime.
Ma trận hiệu suất kỹ thuật
| Tính năng | Chi tiết |
| Valve Style | Globe (Single Port) |
| Plug Action | Balanced (Push-down-to-close) |
| Guiding | Rugged Cage Guided |
| Pressure Class | CL900, CL1500, and Intermediate Ratings |
| Gaskets | Spiral-Wound (Alloy 600 or X750) |
| Trim Options | Whisper Trim and Cavitrol compatible |
Ứng dụng chính
Power Generation: Managing high-pressure steam headers, boiler feedwater, and turbine bypass.
Hydrocarbon Production: High-pressure gas letdown and oil processing in upstream facilities.
Chemical Processing: Precise control of high-pressure reactants and catalyst feeds.
Refining: Severe service throttling in hydrocracking and high-pressure separation units.
