{"product_id":"b349-afrb24-sr-belimo-three-way-characterized-control-valve-with-spring-return-actuator-24v","title":"B349+AFRB24-SR | Belimo Three Way Characterized Control Valve With Spring Return Actuator 24V","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"122\" data-end=\"397\"\u003eThe Belimo B349+AFRB24-SR is a factory-assembled characterized control valve with a spring return actuator designed for precise modulating control of hydronic HVAC systems. It combines a 3-way DN 2 inch valve with a 24 V actuator to deliver accurate flow regulation and reliable fail-safe operation.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eBelimo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eControl Valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eB349+AFRB24-SR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eCharacterized Control Valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eValve Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e2 in [50 mm]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e3-way mixing\/diverting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eCv Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e46\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eFluid Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eChilled or hot water, up to 60% glycol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eFluid Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e-18…120°C [0…250°F]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eBody Pressure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e400 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eClose-Off Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e200 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eFlow Characteristic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eEqual percentage A-port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eLeakage Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e0% A–AB, \u0026lt;2% B–AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003ePipe Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eNPT female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eAC\/DC 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eControl Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e2…10 V (4…20 mA with resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003ePower Consumption (Operation)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e5.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003ePower Consumption (Rest)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eTransformer Sizing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e8.5 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003ePosition Feedback\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e2…10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eActuator Rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eRunning Time (Motor)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e95 s \/ 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eRunning Time (Fail-Safe)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e\u0026lt;20 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003eIP54 \/ NEMA 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.6115%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.0249%;\"\u003e10.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About\u003cspan data-sheets-root=\"1\"\u003e B349+AFRB24-SR\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe B349+AFRB24-SR is part of Belimo’s characterized control valve portfolio engineered to optimize hydronic system efficiency and control accuracy. The valve body is constructed from nickel-plated brass with stainless steel internal components to ensure durability and stable performance under varying pressure and temperature conditions. Its integrated spring return actuator provides proportional control via a 2…10 V signal and ensures automatic return to a defined safety position during power loss. Factory assembly and testing of the valve and actuator reduce installation time while ensuring reliable operation in commercial HVAC applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCharacterized Three Way Valve Design: Provides precise flow control with equal percentage characteristics on the A-port and optimized B-port flow for stable mixing or diverting operation.\u003c\/li\u003e\n\u003cli\u003eIntegrated Spring Return Actuator: Ensures automatic fail-safe positioning during power loss to protect equipment and maintain system safety.\u003c\/li\u003e\n\u003cli\u003eHigh Cv Performance: Cv 46 rating supports efficient flow control for medium to large hydronic circuits with minimal pressure loss.\u003c\/li\u003e\n\u003cli\u003eWide Fluid Compatibility: Designed for chilled and hot water systems with glycol concentrations up to 60 percent.\u003c\/li\u003e\n\u003cli\u003eModulating Control Capability: Supports 2…10 V control input with optional 4…20 mA configuration for compatibility with modern building automation systems.\u003c\/li\u003e\n\u003cli\u003eDurable Valve Construction: Nickel-plated brass body with stainless steel and PTFE components ensures long service life and low leakage performance.\u003c\/li\u003e\n\u003cli\u003eIntegrated Position Feedback: Provides a 2…10 V feedback signal for continuous monitoring and closed-loop system control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe B349+AFRB24-SR delivers the reliability and precision required for accurate hydronic flow modulation and dependable fail-safe valve control in HVAC systems.\u003c\/p\u003e","brand":"Belimo","offers":[{"title":"Default Title","offer_id":51048787673386,"sku":"B349+AFRB24-SR","price":1367.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/CCV_B3_AFR-product_retina_29f7bc06-54ab-4013-8d3c-d6ccd0acbf04.jpg?v=1768248391","url":"https:\/\/iqelectro.com\/products\/b349-afrb24-sr-belimo-three-way-characterized-control-valve-with-spring-return-actuator-24v","provider":"IQElectro","version":"1.0","type":"link"}