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Woodward 8446-1019 High - Precision Digital Governor Controller for Industrial Speed Regulation
Product Description
The Woodward 8446-1019 is a high - precision digital governor controller specially designed for the precise speed control and real - time monitoring of engines, turbines, compressors, pumps, and other industrial rotating machinery. As a core component in industrial power and process control systems, this robust controller is equipped with a high - performance 32 - bit microprocessor, which can realize accurate speed regulation with a control accuracy of ±0.1% of the rated speed. It has multiple isolated analog input/output (AI/AO) channels, digital input/output (DI/DO) channels, and supports common industrial communication protocols such as Modbus RTU/TCP and CANopen, enabling seamless integration with DCS, SCADA systems, and other field devices. The controller adopts an aluminum alloy shell with IP65 protection level, can operate stably in the temperature range of - 40°C to +85°C, has redundant 24 VDC power input, over - voltage, over - current, and reverse polarity protection functions, and supports online programming and parameter modification, which is convenient for users to debug and maintain, and is widely used in oil and gas, power generation, marine, and other industries requiring high - precision speed control.

Key Functions
The 8446-1019 digital governor has the following core functions to ensure the stable operation of industrial rotating machinery: High - precision speed closed - loop control, which can automatically adjust the fuel supply or energy input according to the load change to maintain the stability of the rated speed; Configurable speed set points, acceleration/deceleration rates, and PID parameters to adapt to different types of machinery and working conditions; Multiple protection functions, including overspeed protection, under - speed alarm, power failure protection, and sensor fault detection, to avoid equipment damage due to abnormal working conditions; Redundant 24 VDC power input to ensure continuous operation without power failure; Rich communication interfaces to realize remote monitoring, data acquisition, and centralized control; Online parameter configuration and real - time status monitoring, supporting data logging and fault recording for troubleshooting and preventive maintenance; Support for multiple control modes such as local control, remote control, and automatic control to meet the needs of different application scenarios.

Application Scenarios
The Woodward 8446-1019 digital governor is suitable for various industrial scenarios requiring high - precision speed control of rotating machinery: Oil and gas industry: Speed control of natural gas compressors, pipeline pumps, and wellhead equipment to ensure the stability and efficiency of the transmission process; Power generation industry: Speed regulation of gas turbines, steam turbines, and diesel generators to maintain the stability of grid frequency; Marine industry: Control of the speed of marine main engines and auxiliary engines to ensure the safe navigation and stable operation of ships; Chemical industry: Speed control of centrifuges, mixers, and other equipment to ensure the quality of chemical production processes; Metallurgical industry: Speed regulation of rolling mill main motors and fans to meet the requirements of production processes; Retrofit projects of old equipment, replacing the traditional mechanical governor with a digital governor to improve control accuracy and reliability.



Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | High - Precision Digital Governor Controller |
| Manufacturer | Woodward |
| Model Number | 8446-1019 |
| Control Accuracy | ±0.1% of Rated Speed |
| Power Supply | Redundant 24 VDC (18-36 VDC), Over - Voltage/Over - Current/Reverse Polarity Protection |
| Communication Interfaces | Modbus RTU/TCP, CANopen, RS - 232/485 |
| Environmental Protection | IP65 Protection Rating, - 40°C to +85°C Operating Temperature |
| Housing Material | Aluminum Alloy |
| Key Interfaces | Multiple Isolated AI/AO, DI/DO Channels |
| Weight | Approx. 1.0 kg |
- Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
- Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
- Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
- Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
- Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.


