friction clutches - Arten Freios e Embreagens Industriais

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Table of Contents◗TENSION CONTROLSEN 50Electro-PneumaticConverterThe EN 50 is designed toaccept a low power 4-20 mAor 0-10 volt signal, and toconvert this signal into a proportionalpneumatic pressure.Standard Features• High pneumatic pressureoutput• Excellent linearity and responseWeb ProductsELECTRO-PNEUMATIC CONVERTERSConverts an electric current input signal into a pneumatic signal.FunctionThe electro-pneumatic converter,Model EN 50, converts acurrent or voltage signal into aproportional pneumatic output.The typical application is controllinga pneumatic clutch orbrake from an electronic controller.Nexen tension controllers,either the open loop orclosed loop types, require theEN 50 as an interface to controla pneumatic clutch or brake.FilteringInstrument quality air, per ISAStandards D7.3-1981, isrequired. Use a filter to removedirt and liquid from the air lineahead of the transducer ifnecessary. If an air linelubricator is used, it must belocated downstream, beyondthe transducer.Product NumberDescription912142 See page 305• Temperature compensated• Compact size• Simple Installation andMaintenance• Flexible mounting optionsAvailable in threeoutput rangesThe EN 50 Electro-pneumatictransducer is available in 3 outputranges to match yourrequirements.Air Volume BoosterFor those rare applicationswhere long air lines requireextra air volume, a volumebooster is available. Order partnumber 964228.EN 50 & EN 40Dimensionspage 305• Field reversible for reverseoutput operation• Optional volume boosteravailable for even more flowcapacity• CE markedModel Product Number Signal Input Air OutputEN 50-15 964229 4-20 mA 0-15 psi (0-100 kPa)EN 50-60 964230 4-20 mA 0-60 psi (0-420 kPa)EN 50-85 964231 4-20 mA 0-85 psi (0-595 kPa)EN 50-85V 964232 0-10 volts 0-85 psi (0-595 kPa)SpecificationsFUNCTIONALSPECIFICATIONS EN 50-15 EN 50-60 EN 50-85 EN 50-85VOutput Range 0-15 psig (0-100 kPa) 0-60 psig (0-420 kPa) 0-85 psig (0-595 kPa) 0-85 psig (0-595 kPa)Supply Pressure 20-150 psig (140-1050 kPa) 65-150 psig (455-1050 kPa) 90-150 psig (630-1050 kPa) ➀ 90-150 psig (630-1050 kPa)Effects on Output .5 psig (4 kPa) @ 25 psig (175 kPa) 1.0 psig (7 kPa) @ 25 psig (175 kPa) 1.5 psig (10.5 kPa) @ 25 psig (175 kPa) 1.5 psig (10.5 kPa) @ 25 psig (175 kPa)Minimum Span 12.5 (84) 25 (175) 50 (350) 50 (350)Air Consumption (SCFM) 12.0 (0.34m 3 /Hr) 13.0 (0.36m 3 /Hr) 6.0 (0.48m 3 /Hr) 6.0 (0.48m 3 /Hr)Flow Rate (SCFM)11 SCFM (3.19 m 3 /Hr) @ 150 psig (1050 kPa) and 9 psig (63 kPa) outputImpedance/Input Signal 250 Ohms 256 Ohms 270 Ohms 893 Ohms➀ If the supply pressure is less than the lower pressure, The maximum output pressure is reduced proportionly.PERFORMANCESPECIFICATIONS EN 50-15 EN 50-60 EN 50-85 EN 50-85VImpedance/Input Signal (%FS) ±0.75 ±1.0 ±1.0 ±1.0Hysteresis and Repeatability
Table of ContentsWeb ProductsELECTRO-PNEUMATIC CONVERTERSConverts an electric current input signal into a pneumatic signal.EN 40Electro-PneumaticConverterThe EN 40 is designedto input a DC signal inthe ranges of 4-20 mAor 10-50 mA, and toconvert this signalinto a proportionalpneumatic pressure.Flow vs. PressureEN 40-1D @ 20 psi input-138 kPaStandard Features• High pneumatic pressure output• Excellent linearity and response• Compact size• Simple installation and maintenance• External zero adjustment• Can be mounted at angles of up to 15°• Temperature compensated• Volume booster incorporated• Can be applied to manifold circuitsTENSION CONTROLS ◗FunctionThe electro-pneumaticconverter, Model EN 40,converts a current signalinto a proportional pneumaticoutput. It alsoincorporates a volumebooster to assure theflow rate and pneumaticpressure required bypneumatic equipmentfor industrial use.Flow vs. PressureEN 40-1A @ 70 psi input-483 kPaApplicationsTension ControlModel EN 40 is employed in web tension controlsystems using an air brake or clutch.EN 40-1B & EN 40-2B@ 92 psi input-634 kPaRider Roll ControlControl roll hardness at the winder by means of a rider roll.Specifications EN 40Product No. Model No. Current Input Air Output Air Input AirMaximum Consumption912001 EN 40-1D 4-20 mA 0-15 psi 20 psi .18 SCFM @20 psi10-100 kPa 138 kPa 5 kPa912004 EN 40-2B 10-50 mA 0-85 psi 100 psi .42 SCFM @85 psi0-595 kPa 690 kPa 12 kPa912028 EN 40-1B 4-20 mA 0-85 psi 100 psi .42 SCFM @85 psi0-595 kPa 690 kPa 12 kPa912035 EN 40-1A 4-20 mA 0-57 psi 70 psi .32 SCFM @57 psi0-343 kPa 483 kPa 9 kPaLoad Resistance 450 Linearity ± 1% Weight 4.4 lbsFiltrationThis converter must be usedwith an air supply filtered to0.10 micron. We recommendNexen filters.Product Number912142Description3 micron prefilter and.1 micron final filter305
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Table of ContentsPRODUCTCAT ALOG10-
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Table of Contents◗PRODUCT NUMBER
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Table of Contents◗FAMILY OF PRODU
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Table of Contents“Air Champ” ®
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Table of ContentsWeb ProductsGUIDE
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Table of Contents◗ MICRO FRICTION
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Table of Contents◗ BW MODEL BRAKE
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Table of Contents◗CALIPER BRAKES
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Table of Contents◗DRUM BRAKES“A
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Table of ContentsDRUM BRAKES “Air
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Table of ContentsDRUM BRAKES “Air
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Table of Contents◗HEAVY DUTY BRAK
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Table of Contents◗METRIC BRAKES
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Table of Contents◗BRAKESWeb Produ
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Table of Contents◗TENSION CONTROL
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Table of Contents◗CLUTCH/BRAKES
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Table of Contents◗CLUTCH/BRAKESFM
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Table of Contents◗CLUTCH/BRAKESA
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