800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANTechnical DataMediachilled or hot water, glycol, 35# steamFlow characteristicmodified equal percentageAction90° rotation valve open CW, valve closed CCWSizes½”, ¾”, 1”, 1¼”, 1½”, 2”Type of end fittingSAE NPT (female connections)Materials:Stem packingreinforced PTFEStem bearing reinforced PTFEBall316 stainless steel4Seat (x2)reinforced PTFE w/ Durafi llRetainerB16 (¾” - 1”) stainless steelB584 (1¼” - 2”) stainless steelGlandB16 brass7Stem 316 stainless steelJam nut stainless steelBody sealPTFE (1-1/4” to 2”)10Body B584-C84400 bronze10Pressure rating600 psig WOGMedia temp. range-22°F to +280°F (-30°C to +138°C)Close-off pressure600 psig @ 100°FMaximum differentialpressure (P)<600 psigFlow PatternsB2...VS Series, 2-way, Ball ValveBronze Body, Stainless Steel Ball and Stem• Live-load packing set• Stainless steel ball & stem• Blow-out proof stem designApplicationThis 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 includeUnit Ventilators, VAV Box re-heat coils and bypass loops. This valve is suitablefor use in a hydronic system with variable flow.This valve is designed with MFT functionality which facilitates the use of various control input.• Up to 35 psi steam• ½” - 600 PSIG WOG, Cold Non-Shock.• Federal Specification: WW-V-35C,Type II Composition: BZ Style: 3Valve Nominal SizeTypeSuitable ActuatorsCvInchesDN [mm]2-way NPTSpring ReturnNon-Spring Return15B2050VS-01LF SeriesLM SeriesSY Series15B2050VS-0215B2050VS-04115B2050VS-1532B219VSNFNM51¾20B220VS425B224VSAF SeriesAM Series625B225VS41¼32B232VS814B239VSGM Series17714B240VS1050B249VSTech.Doc - 11/14 - Subject to change. © Belimo Aircontrols (USA), Inc.800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN10ModelsLF24 USLF24-S US w/built-in Aux. SwitchLF120 USLF120-S US w/built-in Aux. SwitchTechnical DataControlon/off, floating pointPower supplyLF24(-S) US24 VAC ± 20% 50/60 Hz24 VDC ± 10%LF120(-S) US120 VAC ± 10% 50/60 HzPower consumptionLF24(-S) USrunning5 Wholding2.5 WLF120(-S) USrunning5.5 Wholding3.5 WTransformer sizing7 VA, class 2 power sourceElectrical connection(-S models have 2 cables)½” conduit connector3 ft. [1m], 18 GA appliance cableElectrical protection120V actuators double insulatedOverload protectionelectronic throughout rotationAngle of rotation95° Spring return directionreversible with CW/CCW mountingPosition indicationvisual indicator 0° to 90°Running time<40 to 75 sec. (on/off)spring <25 sec. @ -4°F to +122°F [-20°C to +50°C]<60 sec. @ -22°F [-30°C]Ambient temperature-22° F to +122° F [-30° C to +50° C]Housing Agency listings†UL 873, CSA C22.2 No. 24 certified, CEQuality standardISO 9001Noise levelmax. 62 dB(A)LF...-S USAuxiliary switch1 x SPDT, 6A (1.5A) @ 250 VAC, UL Listed,adjustable 0° to 95° (double insulated)† Rated impulse voltage 800V (4kV for 120V model), Control pollution degree 3,Type of action 1.AA (1.AA.B for -S models)LF Actuators, On/OffDimensions with 2-Way ValveValve Nominal SizeDimensions (Inches)Valve BodyCOPInchesDN [mm]B2050VS-0150156.752.006.752.254.00B2050VS-025156.752.006.752.254.00B2050VS-0450156.752.006.752.254.00B2050VS-1550156.702.008.002.256.25Dimensions with 3-Way ValveValve Nominal SizeDimensions (mm)Valve BodyCOPInches [mm]BB315L5012.63” [67]1.73” [44]1.42” [36]B320L50 ¾203.01” [78]1.81” [46]1.63” [42]B325L5023.42” [87]1.81” [46]1.77” [45]Tech.Doc - 11/14 - Subject to change. © Belimo Aircontrols (USA), Inc.800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN11Wiring DiagramsProvide overload protection and disconnect as required.2CAUTION Equipment damage!Actuators may be connected in parallel.Power consumption must be observed. Actuator may also be powered by 24 VDC.For end position indication, interlock control, fan startup, etc.,LF24-S US and LF120-S US incorporates a built-in auxiliary switch:1 x SPDT, 6A (1.5A) @ 250 VAC, UL listed, adjustable 0° to 95°.Meets cULus or UL and CSA requirements without theneed of an electrical ground connection.WARNINGLive Electrical Components!During installation, testing, servicing and troubleshooting of this product, it maybe necessary to work with live electrical components. Have a qualifi ed licensed electricianor 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.LF Actuators, On/Off1 Common2 + Hot224 VAC TransformerLF24 USLine Volts3047On/Off wiring for 24 VAC/DC049-LF-08On/Off wiring for 120 VAC048-AUXAuxiliary SwitchTech.Doc - 11/14 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >