Overview
The Woodward 9907‑1198 belongs to the Woodward CPC‑II / 9907 series electro‑hydraulic converters. It is used to convert electronic control signals into hydraulic power for accurate valve actuation in steam turbines, gas turbines, and compressors. This model is a rotary actuator type, while related models (e.g., 9907‑1200) are linear actuators.
It is commonly paired with Woodward turbine controllers (505, 505E, 2301A, etc.) to provide closed‑loop speed/load regulation and overspeed protection.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Electro‑Hydraulic Converter / Actuator |
| Model Number | 9907‑1198 |
| Operating Temperature | –40 °C to +85 °C |
| Weight | 2.74kg |
Key Features
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Rotary Electro‑Hydraulic Actuator: Converts electronic signals into precise rotary motion for valve positioning.
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Wide Environmental Range: Operates reliably from –40 °C to +85 °C with vibration resistance up to 7.5 g.
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Compact & Lightweight: Weighs under 1 kg, easy to integrate into turbine systems.
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Versatile Compatibility: Works with Woodward controllers such as 2301A, 505, and CPC‑II.
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Industrial Reliability: Designed for continuous operation in harsh turbine/compressor environments.
Typical Applications
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Steam Turbines: Fuel valve actuation and overspeed protection.
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Gas Turbines: Precise fuel metering for speed/load control.
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Compressors: Control of inlet guide vanes or fuel valves.
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Industrial Engines: Integration with Woodward electronic governors for redundancy.
FAQ
Q1: What is the main function of the 9907‑1198?
A1: It converts electronic control signals into hydraulic power for rotary valve actuation.
Q2: How does it differ from the 9907‑1200?
A2: The 9907‑1198 is rotary, while the 9907‑1200 is linear.
Q3: What controllers is it compatible with?
A3: It works with Woodward 2301A, 505/505E, CPC‑II, and other turbine controllers
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