{"product_id":"tg-13-mechanical-governor-woodward-8516-039","title":"TG-13 Mechanical Governor | Woodward 8516-039","description":"\u003cp\u003eThe Woodward \u003cstrong\u003e8516-039\u003c\/strong\u003e is a \u003cstrong\u003emechanical-hydraulic differential governor\u003c\/strong\u003e from the TG-13 series, designed for precise speed control of small steam turbines in non-synchronous (droop) operation. It features a self-contained oil supply, weatherproof construction, and a robust design that withstands harsh industrial environments with minimal maintenance requirements.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGovernor Type:\u003c\/strong\u003e Mechanical-hydraulic, differential (droop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Torque:\u003c\/strong\u003e 16 N·m (12 ft-lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Shaft Rotation:\u003c\/strong\u003e Maximum 40°; recommended 2\/3 of full travel from no-load to full-load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Oil Pressure:\u003c\/strong\u003e 1034 kPa (150 psi)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Range Options:\u003c\/strong\u003e 1100–2400 rpm, 2400–4000 rpm, 4000–6000 rpm (custom ranges available)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Setting:\u003c\/strong\u003e Screw adjustment (standard); lever adjustment (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Shaft:\u003c\/strong\u003e Rotation direction reversible on cast iron and cast aluminum housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil System:\u003c\/strong\u003e Self-contained, no external oil supply required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Weatherproof for outdoor installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 16 × 16 × 12 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Scope\u003c\/h3\u003e\n\u003cp\u003eThe TG-13 governor is ideal for \u003cstrong\u003esmall steam turbine speed regulation\u003c\/strong\u003e where isochronous (constant speed) operation is not required. It is widely used in industrial process steam systems, mechanical drive applications, and auxiliary power units where droop speed control provides stable load sharing and simplified system architecture.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the governor on the turbine drive shaft using the specified coupling arrangement.\u003c\/li\u003e\n\u003cli\u003eVerify drive shaft rotation direction matches the turbine configuration; reverse if necessary.\u003c\/li\u003e\n\u003cli\u003eSet the initial speed reference using the screw or lever adjustment mechanism.\u003c\/li\u003e\n\u003cli\u003eEnsure the self-contained oil reservoir is filled with the recommended lubricant grade.\u003c\/li\u003e\n\u003cli\u003eConnect the output linkage to the turbine throttle valve with minimal backlash.\u003c\/li\u003e\n\u003cli\u003ePerform a no-load speed check before applying process loads.\u003c\/li\u003e\n\u003cli\u003eCalibrate droop percentage to match system load-sharing requirements.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the difference between 8516-039 and 8516-038?\u003c\/strong\u003e\u003cbr\u003eA: Both belong to the TG-13 series; the 8516-039 is a specific configuration variant within the same mechanical-hydraulic governor family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can this governor be used for isochronous operation?\u003c\/strong\u003e\u003cbr\u003eA: No, the TG-13 is a differential (droop) governor designed for non-synchronous applications. For isochronous control, consider electronic governor alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How often does the oil need to be changed?\u003c\/strong\u003e\u003cbr\u003eA: With the self-contained oil system and minimal moving parts, maintenance intervals are extended; follow Woodward's recommended service schedule based on operating hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the speed range field-adjustable?\u003c\/strong\u003e\u003cbr\u003eA: The speed range is factory-set to customer specifications (1100–2400, 2400–4000, or 4000–6000 rpm). Contact Woodward for custom range requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your turbine operates in droop mode; the TG-13 does not provide isochronous speed holding.\u003c\/li\u003e\n\u003cli\u003eSelect the speed range that covers your turbine's operating envelope with 20% margin.\u003c\/li\u003e\n\u003cli\u003eChoose lever adjustment if frequent speed changes are anticipated; screw adjustment for fixed-setpoint applications.\u003c\/li\u003e\n\u003cli\u003eVerify drive shaft rotation direction and mounting orientation before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":43743601262659,"sku":"8516-039","price":166.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/5810\/3107\/files\/8516-0392_59eaac68-f561-4ba7-862c-8efa9457ef0b.jpg?v=1788328672","url":"https:\/\/www.plcdcspro.com\/products\/tg-13-mechanical-governor-woodward-8516-039","provider":"PLC DCS Pro Ltd.","version":"1.0","type":"link"}