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Woodward 9904-581

Product Name:​ Triple-Offset Metal Hard-Seal Shut-off Butterfly Valve (Hydraulic Actuator Integrated Assembly)
Overview:​ A triple-offset metal hard-seal butterfly valve integrated with a hydraulic drive actuator, used for emergency shut-off of turbine oil and fuel oil pipelines in power plants. The complete equipment includes the valve body, H-Spring hydraulic spring actuator, built-in trip solenoid valve, and LVDT valve position feedback. It receives unit trip signals to close the valve rapidly, achieving reliable pipeline media cut-off with fail-safe shut-off characteristics.

Woodward 9904-549

Product Name:​ Fuel Bypass Three-Way Hydraulic Control Valve Assembly
Overview:​ A hydraulically driven three-way fuel bypass control valve adapted for gas turbine liquid fuel systems. It receives hydraulic control oil signals to achieve fuel flow distribution and switching between the main path and bypass, regulating fuel return flow and stabilizing fuel supply pressure. Integrated with LVDT valve position feedback for continuous proportional control. Used for pressure stabilization control in heavy oil and diesel fuel supply systems.

Woodward 9904-534

Product Name:​ GSOV25 Gas Shut-off Solenoid Valve Assembly (Gas Turbine Fuel Shut-off Valve)
Overview:​ A 24 VDC energized gas safety shut-off solenoid valve, serving as a core safety component of gas turbine fuel systems. It integrates a filter, main valve spool, return spring, and position feedback switch for rapid on/off control of gas fuel pipelines. Upon unit fault, it achieves emergency fuel cut-off to prevent fuel from continuing into the combustion chamber. Widely paired with industrial gas turbines and combined-cycle unit fuel circuits.

Woodward 9904-532

Overview:​ A Woodward 9904 series triple-offset butterfly valve with metal hard-sealing structure, used for on/off and throttling control of fuel oil and turbine oil pipelines in power plants and oil & gas industries. Suitable for fuel oil bypass and fuel cut-off pipelines, it can be paired with electric or hydraulic actuators. The triple-offset structure eliminates friction on the disc sealing surface, delivering excellent sealing performance and high temperature/pressure resistance, ideal for steam turbine and gas turbine fuel system pipelines.

Woodward 8918-082

Product Name:​ Steam Turbine Overspeed Protection Solenoid Valve Assembly (Trip Solenoid Valve Assembly)
Overview:​ A Woodward turbine emergency trip protection solenoid module, serving as a core component of the turbine ETS protection system. It is a 2-position 3-way hydraulic solenoid valve used to rapidly vent the turbine safety oil, achieving emergency turbine trip shutdown. It features a dual-coil redundant structure, accepts electrical trip signals, and quickly cuts off safety oil pressure to drive the main steam valve to close rapidly. Widely used in steam turbine and gas turbine emergency protection circuits.

Woodward 8915-978

Product Name:​ 505 Series Microprocessor-Based Digital Governor / Speed Control Module
Overview:​ A microprocessor-based digital governor controller from Woodward's classic 505 series, primarily designed for speed control and overspeed protection of steam turbines. It is suitable for single-valve steam turbines, single extraction/admission configurations, and split-range actuator arrangements.

Woodward 8915-977

Product Name:​ 3103 Series Electro-Hydraulic Servo Actuator (EM35 Integrated Driver, High-Temperature-Adapted Version)
Overview:​ A high-temperature-optimized 3103 electro-hydraulic servo actuator designed for installation near steam turbine bodies where radiant heat is high. The seals and electronic components are upgraded for high-temperature tolerance, integrated with an EM35 driver, receiving a 4–20 mA signal and using turbine oil as the hydraulic medium for control valve actuation in high-temperature zones.

Woodward 9907-614

Product family: Woodward actuator (confirmed in Woodward Governor digital modules & miscellaneous parts catalog as "9907-614 Actuator").
Product brief: The 9907-614 is a Woodward actuator for positioning fuel or steam metering devices in prime-mover control systems. Woodward actuators in this class are typically linear or rotary electric/hydraulic actuators driven by a 0–200 mA control signal from a 2301A or similar speed control.

Woodward 9908-261

Product family: Woodward engine control module.
Product brief: The 9908-261 is a compact engine control module designed for precise speed regulation, fuel control, and operational monitoring of diesel or gas engines in industrial genset, heavy-duty machinery, and power generation applications.

Woodward 9907-672

Product family: Woodward GS6 gas control valve.
Product brief: The 9907-672 is a GS6-series electrically driven gas control valve for fuel-gas metering in industrial and aircraft gas turbine engines. It uses a self-cleaning shear-type metering action and dual resolvers with dual flexure drive plates.

Woodward 9907-671

Product family: Woodward 2301A electronic load sharing and speed control (9905/9907 series). Same 2301A platform as the other 9907-6xx entries above.
Product brief: 2301A analog load-sharing and speed control. Drives a 0–200 mA actuator from a 4–20 mA or 1–5 Vdc command and participates in parallel load sharing via the ±5 Vdc bus.

Woodward 9907-776

Product family: Woodward 2301A electronic load sharing and speed control (9905/9907 series). Same 2301A platform as 9907-651/771/772.
Product brief: 2301A analog speed/load control for diesel, gas, steam, and gas-turbine prime movers. Accepts 4–20 mA or 1–5 Vdc command, outputs 0–200 mA to a proportional actuator, and supports parallel operation via ±5 Vdc load-share bus.