Technical Data2058Servicechilled, hot water, up to 60% glycolFlow CharacteristicA-port Equal percentage; B-port modified linear for constant flowControllable Flow Range75°Size [mm]0.5” [15]End Fittingnpt female endsBodyforged brass, nickel platedBallchrome plated brassStemnickel plated brassStem 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 psiCv3 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-SpringSpringB312BTR, LRTFB(X), LFDimensions (Inches [mm])H1EFBADCH2LRB, LRXABCDEFH1H28.5” [216]2.38” [60]5.19” [132]5” [127]1.3” [33]1.18” [30]1.1” [28]B312B, 3-Way, Characterized Control ValveChrome Plated Brass Ball and Nickel Plated Brass Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 08/14/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Dimensions (Inches [mm])ABDCEFTRABCDEF3.72” [95]2.38” [60]5.19” [132]4.61” [117]1.25” [32]1.29” [33]Dimensions (Inches [mm])BACDEFTFRB, TFRXABCDEF6.59” [167]2.38” [60]4.9” [124]4.71” [120]1.53” [38]1.29” [33]Dimensions (Inches [mm])BAEFDCLFABCDEF7.92” [201]2.38” [60]6.06” [154]5.48” [139]1.82” [46]1.89” [48]B312B, 3-Way, Characterized Control ValveChrome Plated Brass Ball and Nickel Plated Brass Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 08/14/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Technical Data2202Power Supply24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%Power Consumption Running5 WPower Consumption Holding2.5 WTransformer Sizing7 VA (class 2 power source)Electrical Connection(2) 3ft [1m], 18 GA appliance cables with 1/2” conduit connectorsOverload Protectionelectronic throughout 0° to 95° rotationOperating Range Yon/offAngle of Rotation90°Direction of Rotation (Motor)reversible with built-in switchDirection of Rotation (Fail-Safe)reversible with CW/CCW mountingPosition Indicationvisual indicator, 0° to 95° (0° is full spring return position)Running Time (Motor)<40 to 75 secRunning Time (Fail-Safe)<25 sec @ -4°F to 122°F [-20°C to 50°C], < 60 sec @ -22°F [-30°C]Ambient 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 2, IP54Agency Listings†cULus acc. To UL 873 and CAN/CSA C22.2 No. 24-93Noise Level (Motor)<50 dB (A) Noise Level (Fail-Safe)<62 dB (A) Servicingmaintenance freeQuality StandardISO 9001Auxiliary Switch1 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, adjustable 0° to 95° (double insulated)†Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 3LF24-S US, Valve ActuatorOn/Off, Spring Return, 24 VAC/DC800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 09/05/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Wiring DiagramsINSTALLATION NOTESAActuators with appliance cables are numbered.Provide overload protection and disconnect as required.Actuators may also be powered by 24 VDC.Actuators may be connected in parallel if not mechanically linked. Power consumption and input impedance must be observed.44One built-in auxiliary switch (1x SPDT), for end position indication, interlock control, fan startup, etc.Apply only AC line voltage or only UL-Class 2 voltage to the terminals of auxiliary switches. Mixed or combined operation of line voltage/safety extra low voltage is not allowed.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. Blk (1) CommonWht (2) + HotLine Volts131124 VAC TransformerAOn/Off S1S2S3NCNO0° to 95°144Auxiliary SwitchesLF24-S US, Valve ActuatorOn/Off, Spring Return, 24 VAC/DC800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 09/05/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >