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Woodward 8921-020

Product Identification:​ EHPC (Electro-Hydraulic Power Cylinder) — custom, application-specific linear integrating actuator, sister unit to 8921-018 within the EHPC family.
Product Overview:​ The 8921-020 is Woodward's EHPC designed for steam turbine control valve or valve rack positioning. Like all EHPC units, it is configured and manufactured for a specific application, using a low-pressure hydraulic oil source amplified through three stages to produce the required output shaft force.

Woodward 8921-018

Product Identification:​ EHPC (Electro-Hydraulic Power Cylinder) — a custom, application-specific linear integrating actuator for steam turbine control valve or valve rack positioning.
Product Overview:​ The 8921-018 is Woodward's EHPC designed for ease of application and use. It is a linear integrating driver typically used for steam turbine control valve or valve rack positioning. The actuator uses a low-pressure (80–250 psi / 552–1724 kPa) hydraulic oil source, then employs three amplification stages to generate the required output shaft force. As a custom actuator, the EHPC is configured and built for the specific application.

Woodward 6945-681

Product Identification:​ Electro-Hydraulic Power Cylinder (EHPC) actuator — custom-configured linear integrating actuator, part of the same EHPC family as 8921-018 and 8921-020.
Product Overview:​ The 6945-681 is a linear integrating actuator in Woodward's EHPC series, designed for steam turbine control valve or valve rack positioning. It is configured and manufactured for a specific application.

Woodward 6945-680

Product Identification:​ Electro-Hydraulic Power Cylinder (EHPC) actuator — custom-configured linear integrating actuator for steam turbine control.
Product Overview:​ The 6945-680 is part of Woodward's EHPC series. It is a linear integrating actuator used for steam turbine control valve or valve rack positioning, configured specifically for its intended application.

Woodward 6945-677

Product Identification:​ Electro-Hydraulic Power Cylinder (EHPC) actuator — custom-configured linear integrating actuator for steam turbine applications.
Product Overview:​ The 6945-677 is a member of Woodward's EHPC family of electro-hydraulic actuators. These actuators are built to order for specific turbine control valve applications, providing the high-force linear motion needed to position steam turbine control valves.

Woodward 6945-674

Product Identification:​ Electro-Hydraulic Power Cylinder (EHPC) actuator — same product family as 6945-673, configured for a distinct application within Woodward's custom EHPC program.
Product Overview:​ The 6945-674 is a linear integrating actuator in the EHPC series, designed for steam turbine control valve or valve rack positioning. As with all EHPC units, it is configured and manufactured for a specific application.

Woodward 6945-673

Product Identification:​ Electro-Hydraulic Power Cylinder (EHPC) actuator, part of Woodward's integrated linear actuator family configured for steam turbine control valve or valve rack positioning.
Product Overview:​ The 6945-673 belongs to Woodward's EHPC series of application-specific, integrator-configured electro-hydraulic actuators. These units are custom-designed and built for each application, intended for driving steam turbine control valves or valve racks in industrial turbine systems.

Woodward 9906-732

Product Name:​ 723PLUS Digital Speed Governor Controller (Mud Pump, Industrial Drive Engine Firmware)
Product Introduction:​ 723PLUS low-voltage hardware body, preloaded with industrial non-power-generation drive firmware. For reciprocating engines driving non-generating loads, such as mud pumps, water pumps, transmission equipment. Only performs constant-speed process drive, with no generator grid-connection logic.

Woodward 9906-731

Product Name:​ 723PLUS Digital Speed Governor Controller (Emergency Backup Generator Set Firmware)
Product Introduction:​ 723PLUS low-voltage hardware body, preloaded with emergency backup diesel generator set firmware. Optimized for backup units that quickly start after mains power loss, with optimized start sequence and overspeed protection logic. Focuses on single-unit emergency power supply, with simple paralleling capability.

Woodward 9906-730

Product Name:​ EGS-02 Gas Engine Full-Authority Digital Controller
Product Introduction:​ Maritime top-tier version, simultaneously integrating three software authorizations: maritime certification + low-heating-value gas adaptation + lean-burn low-emission. Triple-proof circuit board coating. The most functionally complete model in this maritime series.

Woodward 9906-729

Product Name:​ EGS-02 Gas Engine Full-Authority Digital Controller
Product Introduction:​ Maritime certified version, adapted for low-heating-value gas (biogas, landfill gas). Circuit board with triple-proof salt-fog coating. Ships with low-heating-value gas dedicated software database preloaded. For marine or offshore platform low-heating-value gas engines.

Woodward 9906-728

Product Name:​ EGS-02 Gas Engine Full-Authority Digital Controller
Product Introduction:​ Maritime certified version, equipped with low-emission lean-burn software authorization, circuit board with triple-proof salt-fog coating. For marine natural gas gas engines requiring low emissions.
Technical Specifications:​ Electrical hardware parameters same as 9906-727; holds classification society maritime certification; circuit board triple-proof coating; lean-burn emission control software unlocked.