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Woodward 8915-791

Product Name:​ 3103 Series Electro-Hydraulic Servo Actuator (Integrated EM35 Driver, High Vibration-Industrial Version)
Product Introduction:​ The 8915-791 is a reinforced, vibration-resistant version of the 3103 actuator, developed for industrial steam turbines and steam valves in gas-turbine combined-cycle auxiliaries where vibration is severe. The electrical section is vibration-hardened and the hydraulic components are strengthened. With the integrated EM35 driver, it receives a 4–20 mA signal and uses the turbine lubricating oil source. It delivers high stability in the most vibration-demanding duty.

Woodward 8915-747

Product Name:​ 3103 Series Electro-Hydraulic Servo Actuator (Integrated EM35 Driver, Short-Stroke Version)
Product Introduction:​ The 8915-747 is a short-stroke dedicated electro-hydraulic servo actuator for steam turbine control valves and extraction control valves where travel requirements are smaller. The overall footprint is compact, with the EM35 electronic driver integrated. It uses the turbine lubricating oil as the power medium and is suitable for steam turbine retrofit projects with limited installation space, delivering precise closed-loop valve position control.

Woodward 8915-728

Product Introduction:​ The 8915-728 is a high-force version of the linear electro-hydraulic servo actuator, designed for high-pressure control valves of large-power steam turbines. Compared with the standard model, its output force is increased to accommodate large-diameter control valves and withstand greater valve unbalance forces. The integrated electro-hydraulic design receives the 4–20 mA signal directly from the DCS with no external servo amplifier required. It is primarily used in new-build and retrofit projects for coal-fired and cogeneration large-power steam turbines.

Woodward 8915-679

Product Introduction:​ The 8915-679 is a linear-motion electro-hydraulic servo actuator developed for speed/governing control of small- and medium-sized steam turbines and turbomachinery. It converts an electronic analog command signal into a high-power linear hydraulic output force to directly drive the steam turbine control valve, achieving continuous speed and load regulation. The actuator integrates the EM35 electronic driver as a single, compact unit — no external servo amplifier is required. It operates from the turbine's lubricating oil supply and is widely used in power-generation turbines and industrial drive turbine retrofits.

Woodward 8915-584

Product Name:​ Woodward 3171 Gas Valve with Actuator
Product Introduction:​ The 8915-584 is catalogued in Woodward's 3171 valve-and-actuator family, supplied as a complete valve-and-actuator assembly. The 3171 series is Woodward's line of gas fuel metering valves paired with an actuator for gas-turbine fuel control. As a member of this family, the 8915-584 is intended for fuel metering duties on industrial gas turbines where a pre-assembled, calibrated valve-actuator package is required.

Woodward 8915-669

Product Name:​ Woodward 3171 Gas Valve with Actuator
Product Introduction:​ The 8915-584 is catalogued in Woodward's 3171 valve-and-actuator family, supplied as a complete valve-and-actuator assembly. The 3171 series is Woodward's line of gas fuel metering valves paired with an actuator for gas-turbine fuel control. As a member of this family, the 8915-584 is intended for fuel metering duties on industrial gas turbines where a pre-assembled, calibrated valve-actuator package is required.

Woodward 8915-1194

Product Introduction:​ The 8915-1194 is a Woodward 3103 gas fuel metering valve factory-paired with the EM35MR all-electric actuator, forming a complete, calibrated fuel-control package for industrial gas turbines. Like the 8915-1193 base configuration, it eliminates hydraulic infrastructure and delivers precision metering required for dry-low-emission combustion. The unit is configured to Woodward DVP (Digital Valve Positioner) architecture and is ready for direct mounting into the turbine fuel skid.

Woodward 8915-1193

Product Introduction:​ The 8915-1193 is a complete fuel-metering package in which the Woodward 3103 stainless-steel rotary metering valve is factory-matched to the EM35MR all-electric actuator. The package is engineered for industrial gas-turbine fuel control, delivering high-accuracy fuel flow regulation for Dry-Low-Emission (DLE) applications while eliminating the need for a hydraulic power unit. The unit is supplied pre-calibrated and ready for direct installation into the turbine fuel system.

Woodward 9907-898

Product Overview:​ The SPM-A Synchronizer biases the speed of an off-line generator set so that the frequency and phase match those of another generator or the utility bus. It automatically issues a contact closure signal to close the circuit breaker between the two when frequency and phase are matched within limits for a specified match-up time. The SPM-A is a phase-locked-loop synchronizer and strives for a perfect match of frequency and phase. The SPM-A Synchronizer with voltage matching generates additional raise and lower signals (relay contact closures) to the generator's voltage regulator. Voltages must match within the SPM-A's tolerance before breaker closure occurs.

Woodward 9907-896

Product Overview:​ The SPM-A Synchronizer biases the speed of an off-line generator set so that the frequency and phase match those of another generator or the utility bus. It automatically issues a contact closure signal to close the circuit breaker between the two when frequency and phase are matched within limits for a specified match-up time. The SPM-A is a phase-locked-loop synchronizer striving for a perfect match of frequency and phase. The SPM-A Synchronizer with voltage matching generates additional raise and lower signals (relay contact closures) to the generator's voltage regulator, requiring voltages to match within the SPM-A's tolerance before breaker closure occurs.

Woodward 9907-600

Product Name:​ Handheld Field Programming Debugger (for ProAct Series Actuators)
Product Overview:​ Portable handheld programming unit, specially used for on-site debugging, parameter modification, and status reading of Woodward ProAct series electro-hydraulic and electric actuators. It connects directly to the actuator via a dedicated communication interface without an upper computer. It completes PID parameter tuning, valve stroke calibration, fault reading, and parameter backup on-site at the unit, suitable for unit maintenance and debugging sites.

Woodward 9907-487

Product Name:​ ProTech Overspeed Protection System Speed Monitoring Module
Product Overview:​ ProTech series turbine overspeed protection monitoring unit, serving as the core module of ETS overspeed protection. It receives multiple magnetic speed sensor signals, monitors turbine speed in real time, and outputs a trip relay signal to trigger emergency unit shutdown when the speed exceeds the set overspeed threshold. It features speed overrun, sensor fault, and line break diagnostics, serving as an independent third-party overspeed protection device for the unit.