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Woodward 9907-314

Product Name:​ CPC-II Current-to-Pressure Electro-Hydraulic Converter, Dual-Channel Redundant Version
Product Overview:​ Dual-channel redundant CPC-II electro-hydraulic converter with two fully independent electrical and coil circuits inside. If one channel fails, the other seamlessly takes over control to achieve redundant fault tolerance. Used in turbine units with high reliability requirements, it receives two independent 4-20 mA command signals and outputs one hydraulic control oil pressure. A single channel failure will not cause the unit's regulation to fail.

Woodward 9907-306

Product Name:​ CPC-II Current-to-Pressure Electro-Hydraulic Converter, Explosion-Proof Version
Product Overview:​ Intrinsically safe explosion-proof CPC-II electro-hydraulic converter certified for Zone 2 hazardous areas. It receives a 4-20 mA control signal and linearly converts the electrical signal into hydraulic output pressure to drive single-acting servos. The electrical section complies with explosion-proof safety standards for hazardous working conditions.

Woodward 9907-304

Product Name:​ CPC-II Current-to-Pressure Electro-Hydraulic Converter (High-Pressure Supply Version)
Overview:​ A CPC-II series high-pressure supply electro-hydraulic converter adapted for higher supply pressure turbine fire-resistant oil (EH) systems. It receives a 4–20 mA control signal and linearly outputs proportional control oil pressure to drive single-acting servo cylinders. Used in high-pressure fire-resistant oil applications for large turbine regulation systems, achieving high-precision closed-loop valve control.

Woodward 9907-302

Product Name:​ 2301A Load Sharing and Speed Control Governor (Low-Voltage Version)
Overview:​ A 2301A series analog electronic speed governor, belonging to the 9905 series low-voltage variant controllers. Specially designed for prime mover speed control and multi-unit parallel load sharing. It receives magnetic pickup (MPU) speed sensor signals and outputs 0–200 mA drive signal to control electro-hydraulic actuators, achieving closed-loop speed regulation for steam turbines, gas engines, and diesel engines. Supports single-unit operation and multi-unit parallel load equalization.

Woodward 9905-450

Product Name:​ 2301A Electronic Load Sharing and Speed Control (Low-Voltage Configuration)
Overview:​ Part of Woodward's 9905 series 2301A analog electronic load sharing and speed controls for prime movers. It performs speed governing and load sharing for generators and turbines, receiving magnetic pickup speed sensor signals and delivering actuator drive output for closed-loop speed control. The 9905 series low-voltage variant operates on 20–40 VDC.

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.