Technical Data61889Servicechilled, hot water, up to 60% glycolFlow Characteristicequal percentageControllable Flow Range75°Size [mm]5” [125]End FittingPattern to mate with ANSI 125 flangeBodycast iron - GG25Ballstainless steelStemstainless steelStem PackingEPDM (lubricated)SeatTeflon® PTFESeat O-ringEPDM (lubricated)Characterized Discstainless steelBody Pressure Rating [psi]ANSI 125, standard class BANSI ClassANSI 125, standard class BNumber of Bolt Holes8Media Temperature Range (Water)0°F to 250°F [-18°C to 120°C]Max Differential Pressure (Water)50 psi (345 kPa)Close-Off Pressure100 psiCv290 Weight75 lb [34 kg]Leakage0% for A 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-SpringElectronic Fail-SafeB6500S-290GRB(X)GKRB(X)Dimensions (Inches [mm])BACDGEFIGRB, GRXABCDEFGI13.3” [338]10.33” [262]14.4” [366]9.4” [239]5” [127]8.5” [217]0.88” [22]B6500S-290, 2-Way, Characterized Control ValveStainless Steel Ball and Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 02/27/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Dimensions (Inches [mm])DBACEFGIGKRB, GKRXABCDEFGI13.5” [343]10.33” [262]14.4” [366]9.7” [246]5” [127]8.5” [217]0.88” [22]Dimensions (Inches [mm])DCBAGEFIGRX, GKRXABCDEFGI17.5” [444]10.33” [262]17.03” [433]13.60” [345]5” [127]8.5” [217]0.88” [22]Dimensions (Inches [mm])DCBAGEFIGRX, GKRXABCDEFGI17.5” [444]10.33” [262]17.03” [433]13.60” [345]5” [127]8.5” [217]0.88” [22]B6500S-290, 2-Way, Characterized Control ValveStainless Steel Ball and Stem800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 02/27/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Technical Data68749Power Supply24 VAC ± 20%, 50/60 HzPower Consumption Running12 W Power Consumption Holding3 W Transformer Sizing21 VA (class 2 power source)Electrical Connection3 ft [1 m], 10 ft [3 m] or 16 ft [5 m] 18 GA appliance cables, with 1/2” conduit connectorOverload Protectionelectronic throughout 0° to 95° rotationOperating Range Yon/off, floating pointInput Impedance100 k ΩAngle of Rotationmax. 95°, adjustable with mechanical stopDirection of Rotation (Motor)reversible with built-in switchDirection of Rotation (Fail-Safe)reversible with switchPosition Indicationintegrated into handleManual Overrideexternal push buttonRunning Time (Motor)150 sec constant, independent of loadRunning Time (Fail-Safe)35 secBridge Time2 sec delay before fail-safe activatesPre-charging Time5 to 20 secondsHumidity5 to 95% RH non condensing (EN 60730-1)Ambient Temperature Range-40°F to +176°F [-40°C to +80°C]Storage Temperature Range-22°F to +122°F [-30°C to +50°C]HousingNEMA 2, IP54, UL enclosure type 2Housing MaterialUL94-5VAAgency Listings†cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EC and 2006/95/ECNoise Level (Motor)<45 dB (A) Noise Level (Fail-Safe)<45 dB (A) Servicingmaintenance freeQuality StandardISO 9001Weight4 lb [1.8 kg]Electric Frequency50/60 Hz†Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 3GKRX24-3On/Off, Floating Point, Electronic Fail-Safe, 24V800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 09/01/2016 - 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 be connected in parallel if not mechanically linked. Power consumption and input impedance must be observed.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. Y2 Input24 VAC Transformer (AC Only)Blk (1) - CommonRed (2) + Hot Wht (3) LineVoltsY1 InputPnk (4) 111On/Off 24 VAC Transformer (AC Only)Y2 InputBlk (1) - CommonRed (2) + HotWht (3) Y1 Input LineVoltsPnk (4) 1112Floating PointGKRX24-3On/Off, Floating Point, Electronic Fail-Safe, 24V800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 09/01/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >