Woodward 9907-1350

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Woodward 9907-1350

The Woodward 9907-1350 is a specific part number for a V45TD series electro-hydraulic actuator. This type of actuator is a vital component in industrial control systems, particularly for turbines, where it converts electrical signals from a governor or controller into precise mechanical movement to regulate critical parameters.

Product Overview

• Product Type: Electro-Hydraulic Actuator
• Manufacturer: Woodward
• Actuator Series: V45TD
• Specific Model: V45TD-1010-MURXM-X-S-X (This specific model information is crucial for precise identification.)
• Operation: Double Acting (meaning it uses hydraulic pressure to drive movement in both extend and retract directions, offering precise control).
• Stroke/Travel: The “1010” in the model number typically indicates a 1.0 inch (25.4 mm) stroke, and a specific work output.
• Environmental Rating: The “MURXM” suffix often denotes specific mounting, electrical connections, and importantly, ATEX compliance for use in hazardous (potentially explosive) environments. This configuration typically also includes a mechanical manual shutdown.
• Input Signal: Typically accepts an analog command signal (e.g., 4-20 mA or 0-5 Vdc) from an electronic controller.

Detailed Description

Woodward V45TD series actuators are highly regarded for their robust design, high precision, and fast response, making them indispensable in demanding industrial applications. The 9907-1350 is engineered to act as the direct interface between a digital control system (like a Woodward MicroNet or 505 controller) and the mechanical elements it needs to manipulate, such as fuel valves, steam admission valves, or inlet guide vanes in a turbine.

Key characteristics of this V45TD actuator configuration include:

• Precise Electro-Hydraulic Control: It translates an electrical demand signal from a governor into proportional hydraulic pressure, which then drives the actuator’s piston to a precise position. This ensures accurate regulation of the controlled device.
• Double-Acting Operation: Unlike single-acting actuators that rely on a spring for return, the double-acting design allows for active hydraulic control in both directions, providing greater control stiffness and responsiveness.
• Robust Construction: Built to withstand the harsh conditions often found in power generation and industrial processing environments, ensuring long-term reliability and minimal maintenance.
• Hazardous Area Compatibility: The ATEX compliance (implied by the “MURXM” designation) means it meets European Union safety directives for equipment intended for use in potentially explosive atmospheres, such as those found in oil & gas facilities or chemical plants.
• Manual Shutdown Feature: The “M” in MURXM often indicates a mechanical manual shutdown capability, providing an additional layer of safety for operators to physically intervene and shut down the controlled device.
• Quick Response: The design enables rapid and accurate movement of the controlled device, which is crucial for maintaining stable speed, load, or process parameters under dynamic operating conditions.

Applications

The Woodward 9907-1350 (V45TD-1010-MURXM-X-S-X Actuator) is typically used in critical control loops for:

• Gas Turbines: Precisely controlling fuel gas or liquid fuel valves, compressor inlet guide vanes, or exhaust guide vanes to manage turbine speed, power output, and emissions.
• Steam Turbines: Actuating steam admission valves, extraction valves, or other steam flow control elements for speed and load regulation in power plants.
• Industrial Compressors and Pumps: Regulating the flow or speed in systems driven by turbines or large engines, where precise control is paramount.
• Power Generation: Essential for the accurate and responsive control of turbine-generator sets to ensure stable and efficient electricity production, especially where a mechanical shutdown option is desired.

Related Products/Series

The Woodward 9907-series encompasses various control system components, including a wide range of actuator configurations. Other part numbers within the V45TD actuator family with similar characteristics (varying by stroke, work output, or specific options) include:

• 9907-1726: V45TD-1010-MUE2 (or similar, typically without the mechanical shutdown)
• 9907-1472: V45TD-1010-FUEXM-X-S-X (similar stroke, likely differing in electrical connection or failsafe options)
• 9907-1729: V45TD-1010-MUEXM-X-S-X (similar to this one, but without the mechanical manual shutdown)
• 9907-1730: V45TD-1015-MURXM-X-S-X (larger stroke/work output but with mechanical manual shutdown)
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