Woodward 5464-655 Integrated Hydraulic Valve Block

Description

Woodward 5464-655 Integrated Hydraulic Valve Block

Product Dimensions：

The Woodward Integrated Hydraulic Valve Block is a critical component in high-performance control systems, particularly for steam and gas turbines. These blocks are engineered to provide precise control over hydraulic fluid to manage actuator positioning and safety trip functions.

1. Product Description

The Woodward Integrated Hydraulic Valve Block is a compact, manifold-based solution that integrates various hydraulic control elements into a single unit. Instead of using discrete valves connected by piping, Woodward utilizes a monoblock design.

This integration typically includes:

• Proportional Control Valves: For precise positioning of actuators.

• Safety Trip Valves: For emergency shutdown (ESD) capabilities.

• Filters and Check Valves: To ensure fluid cleanliness and directional control.

• Pressure Transducers/Sensors: For real-time feedback.

2. Technical Parameters (Typical)

Note: Specifications vary based on specific models like the SPC, VariStroke, or customized OEM blocks.

3. Product Advantages

• Reduced Leakage Paths: By eliminating external piping between valves, the integrated block significantly reduces the risk of hydraulic leaks.

• Compact Footprint: The manifold design saves substantial space compared to traditional “rack-mounted” hydraulic systems.

• High Dynamic Response: Minimal dead volume between components ensures faster actuator response and tighter turbine speed/load control.

• Enhanced Reliability: Fewer fittings and connections mean fewer points of failure.

• Ease of Maintenance: Many units feature “plug-and-play” cartridges, allowing for quick replacement without dismantling the entire hydraulic circuit.

4. Product Applications

These valve blocks are primarily used in power generation and industrial mechanical drives:

• Steam Turbines: Controlling inlet valves and extraction valves.

• Gas Turbines: Managing fuel valve positioning and inlet guide vanes (IGV).

• Safety Systems: Serving as the primary interface for “Triple Modular Redundant” (TMR) trip systems.

• Hydro Turbines: Controlling wicket gate actuators.

5. Important Considerations (Precautions)

• Fluid Cleanliness: Woodward valve blocks use high-precision tolerances. Even microscopic contamination can cause “stiction” or valve failure. Flushing the system before commissioning is mandatory.

• Seal Compatibility: Ensure that the O-rings and seals in the block (e.g., Viton or Nitrile) are compatible with the specific hydraulic fluid being used.

• Air Bleeding: Trapped air can cause erratic control or oscillations. The block must be properly bled during startup.

• Voltage Stability: If the block includes integrated electronics (like the SPC), stable power supply and proper shielding of signal cables are essential to prevent EMI interference.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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