Technical Data281354Servicechilled, hot water, up to 60% glycolFlow Characteristicequal percentageControllable Flow Range75°Size [mm]0.5” [15]End FittingNPT female endsBodyforged brassBallstainless steelStemstainless steelSeatTeflon® PTFESeat O-ringEPDMCharacterized Discincorporated into the ballDiaphragmEPDMBody Pressure Rating [psi]360Media Temperature Range (Water)36°F to 212°F [2°C to 100°C]Maximum Allowable Operating Temperature212°F [100°C] *Media Temperature Limit250°F [121°C] *Diff. Pressure Range5 to 50 psiClose-Off Pressure200 psiWeight1.8 lb [0.8 kg]GPM1.9Leakage0%Servicingmaintenance free* If temperature exceeds 212°F operating range due to a boiler control failure the valve will safely contain the hot water but manufacturers product warranty becomes invalid. Valve and actuator replacement is at the expense of others.ApplicationThe PIQCV zone valves with its pressure independent technology are suited for large commercial buildings where higher close-off and dynamic balancing is required. Common applications include unit ventilators, fan coil units, VAV reheat coils, fin tube casing, radiant panels and duct coils. The valve fits in space restricted areas and can be assembled without the use of tools.Suitable Actuators Non-SpringElectronic Fail-SafeZ2050QPT-DCQCQKDimensions (Inches [mm])EFDBACABCDEF4.49” [114]3.78” [96]4.33” [110]3.31” [84]2.4” [61]1.93” [49]Z2050QPT-D, Pressure Independent ZoneTight Zone Valves (PIQCV)800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 04/03/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Dimensions (Inches [mm])EFDBACABCDEF4.49” [114]3.78” [96]4.17” [106]3.15” [80]1.93” [44]1.2” [26]Z2050QPT-D, Pressure Independent ZoneTight Zone Valves (PIQCV)800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 04/03/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Technical Data281359Power Supply24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%Power Consumption Running0.3 Power Consumption Holding0.15 W Transformer Sizing0.6 VA (class 2 power source)Electrical Connection3ft [1m], 18 GA plenum cable with 1/2” conduit connectorOverload Protectionelectronic thoughout 0° to 90° rotationOperating Range Y2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Ω, 1/4 W resistor)Angle of Rotation90°, adjustable with mechanical stopPosition IndicationpointerRunning Time (Motor)75 secAmbient Humidity5 to 95% RH non condensing (EN 60730-1)Ambient Temperature Range35°F to 104°F [1.7°C to 40°C]Storage Temperature Range-40°F to 176°F [-40°C to 80°C]HousingNEMA 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)max. 35 dB (A) Servicingmaintenance freeQuality StandardISO 9001Weight0.4 lb [0.2 kg]† Use flexible metal conduit. Push the listed conduit fitting device over the actuator’s cable to butt against the enclosure. Screw in conduit connector. Jacket the actuators input wiring with listed flexible conduit. Properly terminate the conduit in a suitable junction box. Rated impulse Voltage 800V. Type of action 1. Control pollution degree 3.ApplicationNon-Spring Return proportional ZoneTight actuator.Valve selection should be done in accordance with the flow parameters and system specifications. The actuator is mounted directly to the valve without the need for tools or additional linkage.The actuator operates in response to a 2 to 10 VDC or 4 to 20mA control signal.CQB24-SR-LModulating, Non-Spring Return, 24 V, 2 VDC Open 10 VDC Close or 4 to 20 mA800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 03/10/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Wiring DiagramsINSTALLATION NOTESActuators 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.Actuators with plenum cable do not have numbers; use color codes instead.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. Line VoltsControl SignalVDC/mABlk CommonRed + HotWht Y1 Input, 2 to 10V5002318572 VDCOpen10 VDCClose24 VAC TransformerCQB24-SR-LModulating, Non-Spring Return, 24 V, 2 VDC Open 10 VDC Close or 4 to 20 mA800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 03/10/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >