| Technical Specifications | Product Scope |
|---|---|
| Product family | Boiler power-actuated relief valves / PCV |
| Selected series | PAT-7832BF and related project configurations |
| Configuration Example | DN65; Class4500SPL; F92 body |
| Typical installation | Superheater outlet / main steam system |
| Control | Remote DCS and local operation, as configured |
| Protection | Actuator-assisted operation with spring-based backup in the published pneumatic design |
| Selection basis | Steam conditions; control / set pressures; discharge capacity; actuator and protection logic |
Applicable PAT-7832BF pneumatic arrangements assist seat loading for demanding steam service.
The pneumatic design retains spring and medium-force opening and closing when the actuator or control system is unavailable.
DCS signals, local controls and pressure coordination form part of the valve operating package.
Controlled steam discharge at the superheater outlet.
Boiler pressure management coordinated with the safety-valve operating scheme.
| Project Reference – Generating Units | Selected Specification / Material | Set Pressure (MPa) | Working Temperature (°C) |
|---|---|---|---|
| 1 x 700MW ultra-supercritical | DN65; Class4500SPL; F92 | 30.80 | 610 |
| 2 x 660MW ultra-supercritical | DN65; Class4500SPL; F92 | 30.73 | 605 |
| 2 x 350MW supercritical | DN65; Class4500SPL; F91 | 27 | 571 |
Control signals, local operation, actuator response and spring-based opening or closing functions define the functional test scope.
Pressure and leakage testing cover the selected valve configuration.
Available project documentation can include valve drawings, model-specific datasheets, material records, inspection and test plans, test reports and operating instructions.
