Technical Data2107Servicechilled, hot water, up to 60% glycolFlow CharacteristicA-port equal percentage, B-port modified for constant common port flowControllable Flow Range75°Size [mm]0.5” [15]End FittingNPT female endsBodyforged brass, nickel platedBallstainless steelStemstainless steelStem PackingEPDM (lubricated)SeatTeflon® PTFESeat O-ringEPDM (lubricated)Characterized DiscTEFZEL®Body Pressure Rating [psi]600Media Temperature Range (Water)0°F to 250°F [-18°C to 120°C]Max Differential Pressure (Water)50 psi (345 kPa)Close-Off Pressure200 psiCv1.9 Weight0.7 lb [0.3 kg]Leakage0% for A to AB, <2.0% for B to ABServicingmaintenance freeFlow PatternApplicationThis valve is typically used in air handling units on heating or cooling coils, and fan coil unit heating or cooling coils. Some other common applications include Unit Ventilators, VAV box re-heat coils and bypass loops. This valve is suitable for use in a hydronic system with variable or constant flow.Suitable Actuators Non-SpringSpringB311TR, LR, NRB(X)TFB(X), LFDimensions (Inches [mm])H1EFBADCH2LRB, LRXABCDEFH1H28.5” [216]2.4” [61]5.19” [132]4.61” [117]1.3” [33]1.18” [30]1.1” [28]B311, 3-Way, Characterized Control ValveStainless Steel Ball and Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 10/27/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Dimensions (Inches [mm])H1EFBADCH2LRQB, LRQXABCDEFH1H28.9” [226]2.4” [61]5.74” [146]5.16” [131]1.58” [40]1.18” [30]1.3” [33]Dimensions (Inches [mm])BAEFDCLFABCDEF7.9” [201]2.4” [61]5.67” [144]5.09” [129]1.82” [46]Dimensions (Inches [mm])ABDCEFTRABCDEF3.72” [95]2.4” [61]4.79” [122]4.21” [107]1.25” [32]1.2” [31]Dimensions (Inches [mm]) DCBAEFNRB N4, NRX N4ABCDEF11.36” [289]2.4” [61]7.25” [184]6.67” [169]3.15” [80]Dimensions (Inches [mm])BACDEFTFRB, TFRXABCDEF6.59” [167]2.4” [61]4.9” [124]4.32” [110]1.53” [38]B311, 3-Way, Characterized Control ValveStainless Steel Ball and Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 10/27/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Technical Data2450Power Supply24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10%Power Consumption Running1.5 WPower Consumption Holding0.2 WTransformer Sizing3 VA (class 2 power source)Electrical Connectionscrew terminal (for 26 to 14 GA wire)Overload Protectionelectronic thoughout 0° to 90° rotationOperating Range Y2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Ω, 1/4 W resistor)Input Impedance100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω for 4 to 20 mAFeedback Output U2 to 10 VDCAngle of Rotation90°Direction of Rotation (Motor)reversible with built-in switchPosition Indicationintegrated into handleManual Overrideexternal push buttonRunning Time (Motor)90 secAmbient Temperature Range-22°F to 122°F [-30°C to 50°C]Storage Temperature Range-40°F to 176°F [-40°C to 80°C]HousingNEMA Type 1Agency Listings†cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/ECNoise Level (Motor)<35 dB (A) Servicingmaintenance freeQuality StandardISO 9001†Rated Impulse Voltage 800V, Type of Action 1, Control Pollution Degree 2.LRB24-SR-TModulating, Non-Spring Return, 24 V, for 2 to 10 VDC or 4 to 20 mA800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 11/30/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Wiring DiagramsINSTALLATION NOTESProvide overload protection and disconnect as required.Actuators may be connected in parallel. Power consumption and input impedance must be observed.Actuators may also be powered by 24 VDC.Only connect common to negative (-) leg of control circuits.A 500 Ω resistor (ZG-R01) converts the 4 to 20 mA control signal to 2 to 10 VDC.16Actuators are provided with a numbered screw terminal strip instead of a cable.Meets cULus requirements without the need of an electrical ground connection.!WARNING! LIVE ELECTRICAL COMPONENTS!During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury. Control Signal (+)VDC/mA(–)Feedback Signal (+)2 to 10 VDC(–) Ω 500LineVolts135167 Ω 24 VAC Transformer(1)(2)(3)(5)CommonHot +Y Input, 2 to 10VU Output22 to 10 VDC / 4 to 20 mA ControlLRB24-SR-TModulating, Non-Spring Return, 24 V, for 2 to 10 VDC or 4 to 20 mA800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 11/30/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >