{"product_id":"woodward-b8561-697-mechanical-hydraulic-turbine-governor","title":"Woodward B8561-697 Mechanical-Hydraulic Turbine Governor","description":"\u003carticle\u003e\n\u003ch3\u003e\n\u003cstrong\u003eProduct Description\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eB8561-697\u003c\/strong\u003e from \u003cstrong\u003eWoodward\u003c\/strong\u003e is a self-contained mechanical-hydraulic governor engineered for stable speed control and load sharing in steam and gas turbine systems. Built on the proven UG-8\/UG-10 platform, this unit operates independently of electronic control systems, making it suitable for critical applications where reliability and simplicity are required.\u003c\/p\u003e\n\u003cp\u003eBy translating rotational input from the turbine shaft into proportional hydraulic output, the governor precisely positions control valves to maintain consistent turbine speed under dynamic load conditions. Its rugged construction and fail-safe architecture ensure dependable operation in both industrial and marine environments.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nGovernor Architecture: Mechanical-hydraulic, UG-8 \/ UG-10 compatible\n\u003c\/li\u003e\n\u003cli\u003e\nControl Function: Isochronous or droop speed regulation with load control capability\n\u003c\/li\u003e\n\u003cli\u003e\nDrive Input: Direct mechanical coupling to turbine shaft (gear-driven)\n\u003c\/li\u003e\n\u003cli\u003e\nOutput Signal: Hydraulic pressure to servo actuator or control valve\n\u003c\/li\u003e\n\u003cli\u003e\nHydraulic Medium: Mineral-based turbine oil (ISO VG 32–68 recommended)\n\u003c\/li\u003e\n\u003cli\u003e\nSpeed Range: Configurable based on turbine requirements (commonly up to 10,000 rpm input)\n\u003c\/li\u003e\n\u003cli\u003e\nTemperature Range: -20°C to +60°C\n\u003c\/li\u003e\n\u003cli\u003e\nProtection: Integrated mechanical overspeed trip and shutdown linkage\n\u003c\/li\u003e\n\u003cli\u003e\nAdjustment: External speed setting, droop adjustment, and compensation tuning\n\u003c\/li\u003e\n\u003cli\u003e\nMaintenance: Periodic oil quality checks, seal inspection, and calibration recommended\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eKey Functional Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nFully mechanical operation eliminates dependency on external power supply\n\u003c\/li\u003e\n\u003cli\u003e\nHigh-response hydraulic actuation ensures stable valve positioning\n\u003c\/li\u003e\n\u003cli\u003e\nBuilt-in overspeed protection enhances operational safety\n\u003c\/li\u003e\n\u003cli\u003e\nProven UG-series design widely used in legacy and retrofit turbine systems\n\u003c\/li\u003e\n\u003cli\u003e\nRobust construction suitable for harsh industrial and marine conditions\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nSteam turbine generator sets in utility and captive power plants\n\u003c\/li\u003e\n\u003cli\u003e\nGas turbine-driven compressors and pumps\n\u003c\/li\u003e\n\u003cli\u003e\nMarine propulsion turbines and auxiliary drives\n\u003c\/li\u003e\n\u003cli\u003e\nEmergency or backup turbine systems requiring autonomous control\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFAQ\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the B8561-697 operate without an electronic control system?\u003c\/strong\u003e\r\nA: Yes. This governor is fully mechanical-hydraulic and does not require any electronic interface, making it ideal for standalone or backup systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between UG-8 and UG-10 configurations?\u003c\/strong\u003e\r\nA: UG-10 units generally support higher torque output and larger actuator loads compared to UG-8, but both share similar operating principles and installation concepts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of oil is recommended for operation?\u003c\/strong\u003e\r\nA: Clean turbine oil with viscosity grade ISO VG 32 to 68 is typically used, depending on ambient conditions and system design.\u003c\/p\u003e\n\u003c\/article\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":52762147750173,"sku":"B8561-697","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/9907-038_1000_4cde3ac2-0091-4fa5-bb0c-0e6bf0a4187f.jpg?v=1787222637","url":"https:\/\/www.6gcontrols.com\/products\/woodward-b8561-697-mechanical-hydraulic-turbine-governor","provider":"6G Controls","version":"1.0","type":"link"}