{"product_id":"johnson-controls-va7820-hga-2-actuator","title":"Johnson Controls VA7820-HGA-2 Actuator","description":"\u003cp\u003eThe \u003cstrong\u003eJohnson Controls VA7820-HGA-2 Actuator\u003c\/strong\u003e is a high-torque, 24VAC \u003cstrong\u003espring return globe valve actuator\u003c\/strong\u003e designed for professional contractors managing complex HVAC and building automation systems. Delivering a robust \u003cstrong\u003e180 lb-in torque\u003c\/strong\u003e, this unit is engineered for the precise modulation of \u003cstrong\u003eVG7000 Series Globe Valves\u003c\/strong\u003e and compatible series ranging from 1\/2\" to 2\". It serves as a superior technical cross-reference for the \u003cstrong\u003eVA-4233-AGA-2\u003c\/strong\u003e, offering enhanced flexibility through its field-selectable control logic. This \u003cstrong\u003edirect-coupled actuator\u003c\/strong\u003e supports 0-10VDC, 2-10VDC, (0)4-20mA proportional, as well as \u003cstrong\u003efloating and two-position control signals\u003c\/strong\u003e, ensuring seamless integration with diverse DDC controllers. The \u003cstrong\u003estem-up fail-safe\u003c\/strong\u003e mechanism provides critical system protection during power loss, while the integrated manual override simplifies commissioning and emergency manual positioning.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Professional Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Control Compatibility:\u003c\/strong\u003e Easily switch between \u003cstrong\u003eproportional, floating, and on\/off control\u003c\/strong\u003e to match specific site requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Seat Force:\u003c\/strong\u003e The 180 lb-in torque rating ensures reliable shut-off against high differential pressures in chilled water and steam systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Build Quality:\u003c\/strong\u003e Tested for over one million cycles with corrosion-resistant components for long-term mechanical reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Installation:\u003c\/strong\u003e Features a threaded mounting collar and a \u003cstrong\u003e48-inch integrated cable\u003c\/strong\u003e to reduce field wiring time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFail-Safe Security:\u003c\/strong\u003e Mechanical \u003cstrong\u003espring return (stem up)\u003c\/strong\u003e ensures valves return to a known safe state during outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCommon Contractor Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum stroke length for this actuator?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003eVA7820-HGA-2\u003c\/strong\u003e supports a stroke range of 5\/16\" to 1\", making it compatible with a wide variety of globe valve bodies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this unit handle steam applications?\u003c\/strong\u003e\u003cbr\u003e\nYes, when paired with stainless steel trim valves, this actuator is rated for \u003cstrong\u003esteam control applications\u003c\/strong\u003e up to 100 psi.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this a direct replacement for the VA-4233 series?\u003c\/strong\u003e\u003cbr\u003e\nThe VA7820-HGA-2 is the recommended \u003cstrong\u003efunctional replacement for the VA-4233-AGA-2\u003c\/strong\u003e, providing identical mounting and superior signal versatility.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Johnson Controls","offers":[{"title":"Default Title","offer_id":35655966220,"sku":"VA7820-HGA-2","price":932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_d78b7b67-e87f-48f9-9a0e-b5e82bb4fb17.png?v=1774109556","url":"https:\/\/www.gsistore.com\/en-ca\/products\/johnson-controls-va7820-hga-2-actuator","provider":"GSIstore","version":"1.0","type":"link"}