In power plant turbine control systems, precise flow control under high load conditions is key. To meet this need, servo valve G772K620A is designed for high-load, demanding applications. These servo valves are specially designed and tested to ensure stable, reliable and precise operation under extreme conditions.

Servo valve G772K620A is specially designed for power plant gas turbines and is suitable for three-way and four-way throttling flow control valves. Especially the four-way configuration provides better control performance. The pilot stage is a symmetrical two-nozzle flapper valve driven by a double air gap of a dry torque motor. This design provides high-precision control signals and reduces wear, improving drive stability.

The output stage is a four-way slide valve, which is responsible for regulating the main flow according to the control signal of the pilot stage. The spool position is mechanically fed back by a cantilever spring rod, providing an independent verification mechanism to ensure the accuracy of the spool position.

Servo valve G772K620A has a simple and solid structure, reliable operation and long service life. Operating under high load conditions, they exhibit high stability, strong durability, precise control, fast response and strong reliability. However, servo valves operating under extreme conditions may require more frequent inspections and maintenance to prevent performance degradation or failure.

The manufacturer’s guidance and best practices should be followed when installing and using servo valve G772K620A. The performance and reliability of these servo valves are critical to the stable operation of power plant turbine systems. By selecting the appropriate servo valve and ensuring its correct installation and maintenance, you can ensure precise flow control under high load conditions and improve turbine efficiency and stability.

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