Oil-free, water-injected screw compressors LENTO ... - Duncan Rogers

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Data, Facts, Analysesvariable speedfixed speedType Operating Flow* to Motor-rated Length Width Height Weightoverpressure ISO 1217 (Appendix C-1996) outputbar min. max. kW mm mm mm kg(m 3 /min) (m 3 /min)LENTO 15 5 – 10 1.01 2.34 15 1880 850 1660 850LENTO 18 5 – 10 1.01 2.87 18.5 1880 850 1660 860LENTO 22 5 – 10 1.01 3.38 22 1880 850 1660 870LENTO 30 5 – 10 1.01 4.30 30 1880 850 1660 920LENTO 31 5 – 10 2.04 5.08 30 2300 1400 1560 1470LENTO 37 5 – 10 2.04 6.14 37 2300 1400 1560 1520LENTO 45 5 – 10 2.04 7.13 45 2300 1400 1560 1550LENTO 55 5 – 10 2.04 8.19 55 2300 1400 1560 1590LENTO 18 D 5 – 7 2.68 18.5 1880 850 1660 840LENTO 22 D 5 – 10 2.68 22 1880 850 1660 850LENTO 31 D 5 – 8 4.90 30 2300 1400 1560 1450LENTO 37 D 5 – 10 4.90 37 2300 1400 1560 1500.* V referred to operating overpressure of 7 barLENTO, the system solution for:water-cooled/air-cooled optionallyApplication 1 Application 2Application 3oil-lubricatedoil-freeLENTO, the oil-free compressed airprovider as a free-standing system or asa multi-unit solution for economical, oilfreecompressed air production in the mediumoutput range.The benefits for you: cost-effective,operationally safe with low maintenancecompressed air productionLENTO, the oil-free, speed-controlledcompressed air provider is best suited totake over in existing oil-free compressedair stations as the master “command”system.The benefits for you: the entire stationbecomes more economical immediately,and peaks in consumption can be bufferedby “governing”.LENTO, the oil-free compressed air producer,as safe alternative to replaceoil-lubricated with oil-free compressedair cost-effectively in critical sectors(such as foodstuffs, chemicals andpharmaceuticals).The benefits for you: high security for yourproducts (no oil present) and fewer wastedisposal problemsintelligent compressed air ... everywhere intelligent compressed air ... everywhere intelligent compressed air ... everywhere
Intelligent technology at the point of delivery!The LENTO concept offerstechnological advantages with no compromise:HIGHLIGHTHIGHLIGHTHigh quality, 100% oil-free compressed air isdemanded not only in pharmacy, foodstuffs,electrical engineering and medical industries,but is very important in all applications whereproducts of highest quality are produced.Only water, the most natural of all raw materials,is used in the compression process. The result is:clean, environmentally friendly compressedair with no oil; dirt and other dust particlesdrawn in are being cleaned by the watertreatment systemclean condensate (pure water) can be feddirectly into the drains systemlowest temperatures during compressionthrough optimum heat transfer via the waterand this with minimum energy consumptionHIGHLIGHTHIGHLIGHTHIGHLIGHTThe LENTO range of speed-controlled directdrive compressors provide optimum economyby: exactly matching the flow from thecompressor to the compressed airrequirements at any time avoidance of switching cycles and theconsequent costly no-load periods energy-saving start-up, with no current surge freely selectable operating pressure from5 – 10 bar in 0.1 bar incrementsThe reduced pressure produced saves youmoney!The combination of the “energy-saving duo”is unbeatable:The integrated dryer:the LENTO with “fixed speed” covers the basicload for a compressor stationthe LENTO with “variable speed” takes upany additional requirement, e. g. peaks inconsumptionensures minimum compressed air outputtemperatures, i. e. a separate dryer may notbe requiredreduces costs and simplifies installation asno additional water is requiredCompressedairrequirementConventionalno loadcontrol100 %50 %0%100 %50 %0%(Closed loop/ 100 %variable) speedcontrol by 50 %means of SCD0%technologyFull loadcurrent drainMotor (A)Pressure range(bar)9.29.08.88.68.48.28.07.8876543210upper switching pointlower switching pointno load periodsDirect start-up Star/DeltaConventional no load controlsavingspotentialTracking timeLENTOtimetimetimeClean start-upStart-up time (s)LENTOHIGHLIGHTMinimised service and maintenance costs comparedwith other oil-free compression systemswith fewer service items
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Oil-free, water-injected screw compressors LENTO ... - Duncan Rogers

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