PSG Hydraulic GOVERNOR
WOODWARD
New product
The WOODWARD PSG Hydraulic Governor is a precision mechanical-hydraulic speed control device designed to regulate and maintain diesel engine speed under varying load conditions. Based on the identification plate visible in the supplied image, this unit is manufactured by Woodward Governor Company, Loveland, Colorado, U.S.A., with Part Number 8561-630.
Woodward governors have been trusted throughout the marine industry for decades and are widely installed on marine propulsion engines, auxiliary diesel generators, emergency generators, pumps, compressors, and industrial power systems.
The primary purpose of the PSG Hydraulic Governor is to automatically maintain engine speed regardless of load variations. When engine load changes, the governor immediately adjusts the fuel rack position to compensate, ensuring stable engine operation and consistent performance.
For ship owners, chief engineers, technical managers, and vessel operators, reliable governor performance is critical for safe navigation, stable power generation, fuel efficiency, and protection of valuable engine equipment.
The WOODWARD PSG Hydraulic Governor operates using a proven mechanical-hydraulic control principle. The governor continuously monitors engine speed and automatically adjusts fuel delivery to maintain the desired RPM setting.
As engine load increases, speed tends to decrease. The governor senses this change and increases fuel delivery to restore the target speed. Conversely, when engine load decreases, the governor reduces fuel input to prevent overspeed conditions.
This closed-loop mechanical control system provides reliable speed regulation without dependence on complex electronic components.
The PSG Governor is commonly installed on:
Its rugged construction and long service life have made the Woodward PSG one of the most respected governor systems in the marine and industrial sectors.
The PSG governor continuously monitors engine speed and automatically compensates for load variations, ensuring stable operation under changing conditions.
The governor utilizes a mechanical-hydraulic operating principle that has demonstrated exceptional reliability across thousands of marine and industrial installations worldwide.
The governor responds rapidly to speed deviations, helping prevent excessive RPM fluctuations and maintaining engine stability.
Designed for demanding environments, the PSG governor is capable of operating under harsh marine engine room conditions.
Proper governor operation helps protect engines from potentially damaging overspeed conditions.
Woodward governors are known for their durability and can often remain in service for many years with proper maintenance and periodic overhaul.
The PSG governor can be applied to various diesel engine brands used throughout the marine industry.
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward Governor Company |
| Model | PSG Hydraulic Governor |
| Part Number | 8561-630 |
| Governor Type | Mechanical Hydraulic Governor |
| Application | Diesel Engine Speed Control |
| Control Method | Mechanical Hydraulic Regulation |
| Installation | Marine and Industrial Engines |
| Function | Engine Speed Regulation |
| Country of Origin | United States |
| Typical Use | Main Engine and Generator Control |
Actual operating characteristics may vary according to engine manufacturer requirements, governor settings, and installation configuration.
Used for auxiliary diesel generator speed control and power generation stability.
Installed on auxiliary engines and emergency generator systems.
Supports reliable engine speed control for generators and cargo support equipment.
Provides stable operation for auxiliary machinery and power generation systems.
Used in auxiliary power systems requiring dependable speed regulation.
Supports generator engines and critical auxiliary equipment.
Installed on generators, pumps, and industrial power units.
Provides stable electrical power generation for accommodation and vessel services.
Supports precision engine speed regulation for scientific and operational systems.
Used on propulsion engines and auxiliary generators.
The WOODWARD PSG Governor may operate alongside:
SM MARINE SERVICE™ provides worldwide sourcing support for WOODWARD governor systems and associated spare parts.
Available support includes:
We support ship owners, ship management companies, chief engineers, and technical purchasing departments worldwide.
SM MARINE SERVICE™ offers comprehensive governor repair and technical services.
Our capabilities include:
We also provide support for:
Our marine engineering team can assess the condition of your governor and recommend repair, overhaul, calibration, or replacement according to operational requirements.
SM MARINE SERVICE™
Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh
China Warehouse and Support Center
Shanghai, China
SM MARINE SERVICE™ supplies both New Equipment and Reconditioned Equipment depending on customer requirements and budget.
We provide worldwide supply, sourcing, repair, calibration, technical support and spare parts services for marine automation, navigation, communication and marine electronic systems.
Website : https://www.smmarineservice.com
Email : info@smmarineservice.com
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Marketing Contact: Nazmul Hasan Bhuiyan
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The WOODWARD PSG Hydraulic Governor is a proven and highly reliable engine speed control solution used throughout the global marine industry. Its robust mechanical-hydraulic design, accurate speed regulation capability, and long operational life make it an ideal choice for diesel generators, auxiliary engines, and propulsion systems.
For WOODWARD PSG governor supply, repair, calibration, overhaul, spare parts, troubleshooting assistance, reconditioned equipment, and worldwide marine services, contact SM MARINE SERVICE™. Our experienced marine engineering team is ready to provide professional support and technical solutions for your vessel's engine control requirements.
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