WOODWARD 9904-1854 Electro-hydraulic Actuator

Product Description

Part No.: WOODWARD 9904-1854 Brand: Woodward Description: Electro-Hydraulic Actuator, Turbine Fuel Control Actuator This linear electro-hydraulic actuator belongs to Woodward 9904 series, equipped with built-in LVDT position feedback sensor. It receives command signal from governor controller to drive turbine fuel control valve and precisely adjust fuel flow. Adopt fail-safe spring return design for power or pressure loss. It features good vibration resistance and high temperature tolerance, which is the critical spare part for gas turbine and steam turbine governing system. Available supply: new original, rebuilt & overhauled units, test calibration report available upon shipment.

Specifications

• Brand: Woodward
• Part Number: 9904-1854
• Type: Electro-Hydraulic Actuator
• Feedback Sensor: Integrated LVDT
• Control Signal: 4-20mA / Servo valve signal
• Safety Mode: Spring return, fail close
• Compatible Governor: Woodward 505, 505E and similar control systems
• Working Fluid: Hydraulic oil, fuel oil
• Application Condition: Gas turbine, steam turbine & generator governing oil circuit
• Alias: Turbine control valve actuator, fuel regulating actuator

Application

1. Matched with Woodward governors for speed and load regulation of industrial gas turbines, steam turbines and diesel generator sets;
2. Drives fuel control valve according to control command, continuously regulates fuel supply to stabilize unit speed and output power;
3. Automatic spring reset and valve shut-off when power or pressure loss, to realize emergency trip protection;
4. Widely used for equipment maintenance, spare part replacement and control system retrofit in power plants, oil & gas pipelines, offshore platforms and refineries.

Similar Series Models (9904 Series Actuator / Fuel Valve)

• 9904-1352: Three-way fuel stop valve, electric trip
• 9904-1353: Fuel shutoff valve assembly
• 9904-257: High speed fuel shutoff valve
• 9904-3179: DLE pressure transducer manifold
• 9904-3721: ELA80 Electric Actuator
• 9904-3722: ELA150 Electric Actuator