WOODWARD 8407-543

WOODWARD 8407-543

The Woodward 8407-543 is a sophisticated, all-in-one component that combines a fuel valve, its electronic actuator, and integrated intelligence to precisely control gaseous fuel delivery. It’s part of the TecJet™ 110 series, which is designed for significantly higher flow rates than the TecJet 52 series.

 

Product Overview

 

  • Product Type: Gaseous Fuel Metering Valve / Integrated Valve and Actuator
  • Manufacturer: Woodward
  • Series: TecJet™ 110 (The “110” signifies a larger valve size, capable of handling higher fuel flow compared to the TecJet 52 models).
  • Function: Precisely controls the mass flow rate of gaseous fuels (such as natural gas, biogas, LPG, or low-BTU specialty gases) to an internal combustion engine or gas turbine. It receives a fuel rate demand signal from a main control system and accurately adjusts its internal valve position to deliver the exact required flow.
  • Key Features:
    • Integrated Design: Combines the valve and the electronic actuator into a single unit, simplifying installation and wiring while improving reliability.
    • Digital Compensation: Features onboard electronics that automatically compensate for variations in gas pressure and temperature. This ensures accurate mass flow metering regardless of fluctuating gas supply conditions, crucial for optimal engine performance, efficiency, and emissions control.
    • High Response: Engineered for fast and precise adjustments to fuel flow commands. It boasts a position response of –3 dB at > 7 Hz, with a 1400%/second slew rate limit and 2 ms dead time, making it highly dynamic.
    • Feedback Sensors: Incorporates internal sensors that continuously monitor critical parameters such as fuel pressure, temperature, and valve pressure differential. This data is used for internal control loops and can be communicated to the main engine/turbine controller.
    • High Turn-down Ratio: This allows one TecJet model to be used across a wide range of fuel flow requirements and potentially for a complete engine family.
  • Valve Size: The “110” in TecJet 110 indicates a nominal valve size of 110 mm.
  • Weight: Approximately 31 kg (68 lb).
  • Valve Maximum Geometric Area: 6065 mm² (9.4 in²).
  • Input Voltage Range: 18–32 Vdc.
  • Input Current Range: <=4.0 A steady state, 13.0 A peak.
  • Temperature Ranges:
    • Steady State Ambient: –20 to +85 °C (–4 to +185 °F)
    • Long Term Storage: –40 to +40 °C (–40 to +104 °F)
  • Pressure Ranges:
    • Fuel Gas Inlet: 50 to 276 mbar gauge (0.73 to 4 psig)
    • Inlet to Outlet Delta: 70 to 276 mbar (1 to 4 psid)
  • Flow Accuracy:
    • ±20% point accuracy: Crank to Idle flow rate
    • ±10% point accuracy: Idle to 25% valve maximum rated mass flow
    • ±6% point accuracy: >25% valve maximum rated mass flow
  • Vibration and Shock: Exceeds WGC RV2 for vibration and per US MIL-STD-810C for shock, indicating robust design for harsh engine environments.
  • Communication/Command Signals: The primary communication is via CAN. It can also accept PWM (7 to 32 V differential input) or 4–20 mA analog (differential input) command signals. The communication protocol itself is often customer-specific or tailored to certain OEM systems (e.g., specific versions of J1939 or Woodward’s proprietary EGS/E6 protocols).
  • Generation Status: This part number typically refers to an older generation, non-RoHS compliant TecJet 110 valve.
احصل على عرض أسعار
التصنيف:

الوصف

The Woodward 8407-543 is a specific part number for a TecJet™ 110 Gaseous Fuel Metering Valve. This is a highly robust and intelligent integrated valve and actuator system designed for precise, compensated fuel flow regulation in larger internal combustion engines (gas engines) and industrial gas turbines.

 

WOODWARD 8407-543: TecJet™ 110 Gaseous Fuel Metering Valve

 

The Woodward 8407-543 is a sophisticated, all-in-one component that combines a fuel valve, its electronic actuator, and integrated intelligence to precisely control gaseous fuel delivery. It’s part of the TecJet™ 110 series, which is designed for significantly higher flow rates than the TecJet 52 series.

 

Product Overview

 

  • Product Type: Gaseous Fuel Metering Valve / Integrated Valve and Actuator
  • Manufacturer: Woodward
  • Series: TecJet™ 110 (The “110” signifies a larger valve size, capable of handling higher fuel flow compared to the TecJet 52 models).
  • Function: Precisely controls the mass flow rate of gaseous fuels (such as natural gas, biogas, LPG, or low-BTU specialty gases) to an internal combustion engine or gas turbine. It receives a fuel rate demand signal from a main control system and accurately adjusts its internal valve position to deliver the exact required flow.
  • Key Features:
    • Integrated Design: Combines the valve and the electronic actuator into a single unit, simplifying installation and wiring while improving reliability.
    • Digital Compensation: Features onboard electronics that automatically compensate for variations in gas pressure and temperature. This ensures accurate mass flow metering regardless of fluctuating gas supply conditions, crucial for optimal engine performance, efficiency, and emissions control.
    • High Response: Engineered for fast and precise adjustments to fuel flow commands. It boasts a position response of –3 dB at > 7 Hz, with a 1400%/second slew rate limit and 2 ms dead time, making it highly dynamic.
    • Feedback Sensors: Incorporates internal sensors that continuously monitor critical parameters such as fuel pressure, temperature, and valve pressure differential. This data is used for internal control loops and can be communicated to the main engine/turbine controller.
    • High Turn-down Ratio: This allows one TecJet model to be used across a wide range of fuel flow requirements and potentially for a complete engine family.
  • Valve Size: The “110” in TecJet 110 indicates a nominal valve size of 110 mm.
  • Weight: Approximately 31 kg (68 lb).
  • Valve Maximum Geometric Area: 6065 mm² (9.4 in²).
  • Input Voltage Range: 18–32 Vdc.
  • Input Current Range: <=4.0 A steady state, 13.0 A peak.
  • Temperature Ranges:
    • Steady State Ambient: –20 to +85 °C (–4 to +185 °F)
    • Long Term Storage: –40 to +40 °C (–40 to +104 °F)
  • Pressure Ranges:
    • Fuel Gas Inlet: 50 to 276 mbar gauge (0.73 to 4 psig)
    • Inlet to Outlet Delta: 70 to 276 mbar (1 to 4 psid)
  • Flow Accuracy:
    • ±20% point accuracy: Crank to Idle flow rate
    • ±10% point accuracy: Idle to 25% valve maximum rated mass flow
    • ±6% point accuracy: >25% valve maximum rated mass flow
  • Vibration and Shock: Exceeds WGC RV2 for vibration and per US MIL-STD-810C for shock, indicating robust design for harsh engine environments.
  • Communication/Command Signals: The primary communication is via CAN. It can also accept PWM (7 to 32 V differential input) or 4–20 mA analog (differential input) command signals. The communication protocol itself is often customer-specific or tailored to certain OEM systems (e.g., specific versions of J1939 or Woodward’s proprietary EGS/E6 protocols).
  • Generation Status: This part number typically refers to an older generation, non-RoHS compliant TecJet 110 valve.

 

Detailed Description

 

The Woodward TecJet™ 110 valve, including the 8407-543, is a critical component for large gaseous engines and industrial gas turbines. Its integrated design and digital compensation capabilities provide effective and highly accurate fuel control for these demanding applications.

Key characteristics of the 8407-543:

  • High Flow Capacity: As a TecJet 110, this valve is designed for prime movers that require very high fuel flow rates, making it suitable for large industrial power generation, oil & gas, and marine propulsion systems. It can be used for engines with power ranges from 1300 to 3000 kW for low-BTU specialty gas, and 650 to 2000 kW for pipeline-quality natural gas.
  • Precise Fuel Metering: The valve dynamically adjusts fuel flow based on real-time demands. By accurately controlling the fuel quantity, it helps maintain the optimal air/fuel ratio for efficient combustion, minimizing fuel consumption and reducing harmful emissions, even during transient operations.
  • Closed-Loop Control: Integrated electronics and sophisticated control algorithms, coupled with internal feedback sensors, allow for precise closed-loop control of fuel delivery. This provides excellent accuracy, stability, and repeatability.
  • Robust Construction: Built to endure the demanding conditions of industrial environments, including high levels of vibration and wide operating temperature extremes. It is suitable for use in Class I, Division 2, Groups A, B, C, and D hazardous locations.

 

Applications

 

The Woodward 8407-543 TecJet™ 110 valve is applied in various larger engine and industrial turbine systems that run on gaseous fuels:

  • Large Natural Gas Engines: For high-horsepower engines used in power generation (large generator sets), industrial processes, and some marine or rail applications where significant fuel flow is required.
  • Gas Turbines: Suitable for certain aero-derivative and heavy-duty frame turbines, accurately adjusting gas supply to ensure efficient and stable operation, often in power production or industrial drive scenarios.
  • Dual-Fuel Engines: Where large engines switch between or combine liquid and gaseous fuels.
  • High-Capacity CHP (Combined Heat and Power) Plants: Ensuring efficient and clean operation of larger gas engines/turbines.
  • Major Compressor Stations: For very large gas engines or gas turbines driving compressors in pipeline and industrial processing applications.

 

Compatibility and Replacement Notes

 

When dealing with the Woodward 8407-543, it’s crucial to understand its current status:

  • Obsolescence: As an older generation, non-RoHS compliant part, the 8407-543 is likely inactivated by Woodward. This means direct sales and repair options may be very limited or discontinued as of July 2025.
  • Replacement: Woodward has been actively promoting Generation II (Gen II) TecJet models as direct, 100% backward-compatible replacements for older versions. While a specific direct replacement PN for 8407-543 isn’t immediately available in general product change notifications, it would be a newer TecJet 110 variant.
  • Backward Compatibility: New Gen II TecJet valves are generally designed to be 100% backward compatible with their older counterparts. This implies that a modern replacement, if available, should function seamlessly without requiring engine recalibration due to factory flow testing and robust design.
  • Protocol Match: The 8407-543’s communication often used a “customer-specific” or proprietary protocol. When seeking a replacement, confirming the exact communication protocol that your control system requires is absolutely paramount for a successful integration.

منتجات ذات صلة