​​Description​​

The​​Woodward 05701-B-0376​​is an electro-hydraulic servo actuator designed for precise control of fuel valves,steam valves,or inlet guide vanes in turbine systems.This high-performance actuator converts electrical control signals from a governor or DCS into precise mechanical motion to regulate prime mover output.With its robust construction and fast response characteristics,it ensures accurate and reliable control in critical power generation and mechanical drive applications.

​​Application Scenarios​​

In a combined-cycle power plant,the​​Woodward 05701-B-0376​​actuator controls the fuel gas control valve for a 200MW gas turbine.During a rapid load increase command from the grid,the actuator receives a signal from the Mark VIe turbine control system and precisely positions the fuel valve to increase turbine output while maintaining stable combustion dynamics.The​​05701-B-0376​​’s high-resolution position feedback ensures accurate fuel metering,preventing combustion instability while achieving the required power output within seconds.

​​Parameter​​

Parameter

Specification

​​Product Model​​

​​05701-B-0376​​

​​Manufacturer​​

Woodward

​​Product Category​​

Electro-Hydraulic Servo Actuator

​​Input Signal​​

4-20mA or±10VDC

​​Supply Pressure​​

1000-3000 psi(69-207 bar)

​​Stroke Length​​

2-6 inches(50-150 mm)

​​Linearity​​

±0.5%full scale

​​Hysteresis​​

<0.1%full scale

​​Frequency Response​​

>10 Hz(±3dB)

​​Position Feedback​​

LVDT or RVDT

​​Operating Temperature​​

-40°C to+85°C

​​Fluid Compatibility​​

Mineral-based or synthetic turbine oil

​​Connections​​

SAE or NPT hydraulic ports

​​Enclosure Rating​​

IP65(weatherproof)

​​Certifications​​

ATEX,SIL 2(optional)

​​Technical Principles and Innovative Values​​

The​​Woodward 05701-B-0376​​operates using a sophisticated electro-hydraulic system where an electrical control signal modulates a pilot valve,controlling hydraulic pressure to position a main actuator piston.

​​Innovation Point 1:Integrated Servo Valve Technology:​​The actuator incorporates a high-response servo valve that provides precise hydraulic flow control,enabling accurate positioning with minimal overshoot and fast response to control signals.

​​Innovation Point 2:Redundant Position Feedback:​​The built-in LVDT/RVDT position sensor provides continuous,high-resolution feedback to the control system,ensuring accurate position control and built-in diagnostics for predictive maintenance.

​​Innovation Point 3:Fail-Safe Design:​​The actuator can be configured for fail-open,fail-closed,or fail-in-place operation,providing critical safety functions in case of power or signal loss.

​​Application Cases and Industry Value​​

​​Case 1:Pipeline Compressor Station Control:​​A natural gas pipeline compressor station uses​​Woodward 05701-B-0376​​actuators to control fuel flow to turbine-driven compressors.The precise control enabled a 3%reduction in fuel consumption while maintaining pipeline pressure within tight tolerances,resulting in annual savings exceeding$500,000.

​​Case 2:Industrial Cogeneration Plant:​​A paper mill cogeneration plant installed​​05701-B-0376​​actuators on extraction steam valves.The improved control accuracy allowed optimal balance between process steam demand and power generation,increasing overall plant efficiency by 5%and reducing energy costs by$1.2 million annually.

​​Related Product Combination Solutions​​

The​​Woodward 05701-B-0376​​integrates with these complementary products:

​​Turbine Controls:​​​​Woodward 505/505E​​Speed Control Systems

​​Hydraulic Power Units:​​​​Woodward YH​​Hydraulic Supply Systems

​​Position Transmitters:​​​​Woodward SZ​​Series LVDT/RVDT

​​Vibration Monitoring:​​​​Woodward ProTech​​Vibration Systems

​​Network Interfaces:​​​​Woodward NetCon​​Communication Gateways

​​Installation,Maintenance,and Full-Cycle Support​​

Installation and Maintenance:The​​Woodward 05701-B-0376​​requires proper hydraulic system cleaning and fluid conditioning before installation.Follow Woodward’s mounting guidelines and ensure adequate support for hydraulic piping.Regular maintenance includes checking for hydraulic fluid leaks,verifying position calibration,and monitoring performance trends through control system diagnostics.

Our support for the​​Woodward 05701-B-0376​​includes application engineering,installation supervision,and performance optimization services.We provide genuine Woodward components with comprehensive documentation and lifecycle support.

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