WOODWARD 8440-1409 Speed Control / Governor Actuator
Delivery time 3 days
Product origin New/used
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The WOODWARD 8440-1409 is a speed control/governing actuator in the Woodward 844
The WOODWARD 8440-1409 is a speed control/governing actuator in the Woodward 8440 series, designed to provide high-precision closed-loop speed and load control for prime movers such as engines, gas turbines, and steam turbines. It is widely used in critical applications in power generation, marine, industrial power, and oil and gas industries.
I. Core Positioning and Functions
As the actuator driving unit of a speed control system, it receives 4–20 mA or 0–200 mA control signals to drive the fuel rack, valve, or governor linkage, achieving precise speed/load adjustment.
It features built-in position feedback and closed-loop control, offering fast response and high positioning accuracy. It supports both isochronous and droop speed control modes, adapting to single-unit operation and multi-unit parallel load distribution.
It incorporates fault diagnosis, limit protection, and manual emergency operation functions to ensure the safety and stability of the power system.
II. Key Technical Parameters (Industrial Grade)
Control Signal: 4–20 mA / 0–200 mA Analog Input (0 mA corresponds to minimum fuel/minimum speed, 200 mA corresponds to maximum)
Drive Type: Electronic servo drive (non-hydraulic/pneumatic), compatible with Woodward 2301A, 8280, 723, and other speed controllers
Power Supply: Typical 24 V DC (some models are compatible with 12 V / 110 V AC)
Output Stroke: Standard angular or linear stroke (matched to the model)
Response Time: ≤ 50 ms, positioning accuracy within ±0.5%
Protection: IP65 / NEMA 4X, industrial-grade vibration and electromagnetic interference resistance
Environment: Operating temperature -40°C to +85°C, suitable for marine, field, and high-temperature conditions
Installation: Rack/panel/base mounting, supports hot-swapping and online maintenance
III. Typical Application Scenarios
Power Generation System: Diesel / Speed and load control of gas turbine generator sets and gas turbine power plants ensure frequency stability.
Marine power: Main engine speed regulation and parallel operation of power plants meet classification society and maritime safety requirements.
Industrial power: Speed regulation of compressors, pump sets, and fans, suitable for continuous production in chemical, oil and gas, and paper industries.
Oil and gas extraction: Gas engine-driven pumps and compressors, suitable for remote and harsh working conditions.
IV. System Matching and Selection Often used in conjunction with Woodward 2301A (8444-1067), 8280 series controllers, and 723 generator control modules to form a complete speed control system.
Alternative/complementary models in the same series: 8440-1713, 8440-1947, 8440-2045, etc., selected according to control functions and interface requirements.
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