WOODWARD 9907-1315

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The WOODWARD 9907-1315 is an actuator, specifically a V45TD-1515-MUR Double Acting Actuator. This information is consistently found in Woodward’s industrial product catalog and supplier listings.

WOODWARD 9907-1315: V45TD Double Acting Actuator

The WOODWARD 9907-1315 is a vital component in industrial control systems, designed to convert a control signal (typically hydraulic or pneumatic pressure from a governor or control module) into precise linear mechanical motion. This motion is then used to operate critical industrial devices like steam turbine inlet valves, fuel valves, or dampers.

Product Overview

This particular part number designates a specific configuration within the V45TD series of actuators. These actuators are highly regarded for their robust design and exceptional reliability, even in the most demanding industrial environments.

• Product Type: Actuator
• Manufacturer: Woodward
• Part Number: 9907-1315
• Model Designation: V45TD-1515-MUR
• Function: Converts hydraulic or pneumatic pressure into linear mechanical motion to accurately control industrial equipment.
• Action Type: Double Acting. This means that fluid pressure is actively applied to both sides of the internal piston to move the actuator in both extending and retracting directions. This provides more positive and controlled movement compared to single-acting actuators that rely on a spring for return.
• Fail-Safe Direction: Based on some listings, this specific model (V45TD-1515-MUR) may have a fail-retract feature, meaning that upon loss of power or signal, the actuator is designed to retract to a safe position.

Detailed Product Description

The WOODWARD V45TD series of actuators are engineered for durability and precise control in heavy-duty applications. While a comprehensive public datasheet specifically for the 9907-1315 might not be immediately available, its model designation provides key insights into its characteristics:

• Hydraulic or Pneumatic Operation: V45TD actuators can operate using either hydraulic fluid (commonly turbine lube oil) or pneumatic pressure. The precise control signal that the actuator responds to is typically generated by an associated governor (e.g., a TG series governor) or a dedicated electronic control system.
• Double-Acting Mechanism: The “Double Acting” characteristic is fundamental to its operation. By actively applying pressure to both sides of the piston, the actuator achieves precise and controlled movement in both directions (e.g., opening and closing a valve). This offers superior control over spring-return actuators, especially when strong, positive force is needed for both extension and retraction.
• Linear Mechanical Output: The actuator produces a linear force and stroke. This linear motion is then mechanically linked to the component it is controlling, such as a steam turbine’s admission valve, a fuel valve on an engine, or a large industrial damper.
• Rugged Industrial Construction: These actuators are built to withstand harsh industrial environments. Their robust construction enables reliable operation under conditions of high temperatures, significant vibrations, and continuous duty cycles. Features like chrome-plated piston rods, internal and protected feedback sensors, stepped cushions, and triple shaft seal technology contribute to their longevity and ability to withstand side loads of up to 5% of the output force.
• Specific Configuration (1515-MUR): The alphanumeric suffix provides specific details about this particular actuator:
  • The “1515” likely indicates a specific stroke length, referring to the maximum linear travel of the actuator (e.g., 151.5 mm, or potentially 6 inches based on some descriptions for this model, indicating a specific bore and stroke combination).
  • The “MUR” part of the designation refers to specific configuration options related to mounting, internal valving, or feedback mechanisms. Woodward uses these codes to define unique variations within a product line. “MUR” typically implies a male rod end with internal position sensing.

Technical Specifications (General for V45TD Actuators, Specifics for 9907-1315)

Typical Applications

The WOODWARD 9907-1315 V45TD Double Acting Actuator is commonly found in heavy industrial applications that demand precise, powerful, and reliable control over mechanical devices, including:

• Steam Turbines: Used for accurate positioning of steam admission valves, directly controlling the flow of steam to the turbine and, consequently, its speed and power output.
• Gas Turbines: May be employed for precise actuation of fuel gas or liquid fuel valves.
• Compressors and Pumps: In systems where precise flow or pressure regulation is achieved by adjusting large, heavy-duty valves or dampers.
• General Industrial Process Control: Any industrial process requiring robust, powerful, and highly accurate positioning of valves, louvers, or other control elements.