Desiccant Dryers Table - Ingersoll Rand Air

Desiccant Air DryersHeatless, Heated and Heated Blower

Desiccant Dryers.When we designed the Ingersoll Rand heatless, heatedand heated blower desiccant dryers we set our sights oncreating the most reliable desiccant dryers you canoperate. And our success was extraordinary. We set anew standard, and, in fact, rewrote the book.DesiccantOur reliable high strength, non-acidicdesiccant provides maximumperformance and is easily stored andhandled. Environmentally friendly, iteliminates worries associated with othertypes of dryers, such as refrigerantleaks, spills and disposal.2 Desiccant Dryers

Designed for ReliabilityOne look tells you that these dryers are like noTraditional Designothers extremely low silhouette manifoldsand valves within an arm’s reach of theoperator readily accessible fill and drainNew Low Profile Designports just a few of the differences apparenton the outside. Both externally and internally,each model combines innovative engineeringand technically advanced, highly durablecomponents to provide easy installation,operation, maintenance, and simply the mostreliable desiccant dryers available.Easy to Maintain High-Performance ValvesWith manifolds angled toward the center at theoperator level, the valves are easily accessedfor maintenance. A typical diaphragm valvein a heatless dryer can be rebuilt in less thanten minutes, without removing the valve fromthe manifold.Low Profile DesignOur easy access design places key maintenancepoints at operator level for faster servicing andless downtime. The lower silhouette also allowsupright shipment and facilitates installation.State of the Art ControllerThe advanced microprocessor controllermaintains dryer performance at optimum levels.It constantly monitors dryer functions andprovides an alert when maintenance is requiredso downtime is minimal.Desiccant Dryers 3

Selecting An Ingersoll RandDesiccant DryerEach Ingersoll Rand desiccant dryer incorporates high-strengthdesiccant and durable, easily maintained valves for unsurpassedreliability, performance and customer value.All three technologies – heatless, heated andoff-line tower is purged of moisture and readiedheated blower – use twin desiccant towersfor use. The basic difference in the threeand strategically positioned valves to dry thetechnologies is the manner in which moisturecompressed air.is desorbed from the desiccant, also knownWhether using a heatless, heated or heatedas regeneration.blower dryer, the compressed air producedTo air systemis thoroughly dried as it is directed throughthe on-line desiccant-filled tower of the dryer.As the desiccant in this tower adsorbs moisturefrom the air, the desiccant in the dryer’sHeatless DryersSimplest of the three technologies, the heatlessdryer diverts a portion of the dried compressedair to the off-line tower. This dry air then flowsthrough and regenerates the desiccant. Thepurge air, now moisture laden, is harmlesslyexhausted through a muffler to the atmosphere.Lowest in capital investment, this technologymay be more expensive to operate because itrequires a portion of the dried compressedair to be diverted from the air system fordesiccant regeneration.4 Desiccant DryersHL heatless desiccant dryerHeatless dryers offer the lowestcapital investment.From air compressor

From air compressorHeatedThese dryers operate similarly to heatless dryers,with a big exception. Dried air diverted from theair system is first passed through a high-efficiencyexternal heater before entering the off-line towerto regenerate the desiccant. Since this heated aircan hold considerably more moisture thanunheated air, only about half the amount of driedcompressed air is needed for regeneration.Although the addition of the heater andassociated components raises the initial capitalinvestment for a heated dryer, less divertedcompressed air means lower operating costs.Heated BlowerEH heated desiccant dryerHeated dryers offer a compromise betweenoperating efficiency and capital investment.To air systemThis type of dryer does not divert driedcompressed air from the air system to removemoisture from the desiccant in the off-line tower.From air compressorRather, it employs its own high performancecentrifugal blower to direct ambient air through aheater and then through the off-line tower.There, the stream of heated air regenerates thedesiccant. Heated blower technology requires thehighest initial capital investment, but with no orlittle diversion of compressed air from the systemfor regeneration, it offers significantly loweroperating costs than the other two desiccantdryer technologies.So, how do you select the right desiccant dryertechnology? That depends on the variables,such as system demand, compressed air capacity,air quality requirements and applicable life cyclecosts that are unique to your compressedHB heated blower desiccant dryerHeated blower dryers offer the lowestoperating cost.air system.Desiccant Dryers 5To air system

Ingersoll Rand HL HeatlessDesiccant Dryerentering the dryer, and an after-filter to makesure that only clean dried air exits the dryer.As an additional design precaution, the dryer’sswitching valves are normally open and purgevalves normally closed to allow air flowthrough the dryer in case of power loss.A standard feature of every Ingersoll Randheatless desiccant dryer is its NEMA 4 package,providing increased protection of electricalcomponents, as well as advanced digital dryercontrols and displays. It includes a NEMA 4electrical enclosure to protect against water andcondensation, a UL/ULC panel and an advanceddigital electronic controller. In addition, everyHL comes standard with a compressor interlockfeature. This substantially prolongs compressorlife and improves reliability.HL heatless desiccant dryerAvailable in flows ranging from 2.5 nm3/min.While reliability has been a key focus of its(90 scfm) to 141.6 nm /min. (5,000 scfm),design, the Ingersoll Rand HL heatless desiccantIngersoll Rand HL heatless desiccant dryers aredryer is also a leader in its class for energydesigned to ensure a constant -40 C (-40 F) orefficiency and the health and safety ofoptionally -70 C (-100 F) pressure dew point,operating personnel and the environment.3virtually eliminating costly interruption ofproduction due to moisture. Clean air is furtherassured by use of strategically placed filters: apre-filter to remove oil and contaminants in air6 Desiccant Dryers

Ingersoll Rand EH Heated andHB Heated Blower Desiccant DryersThe EH and HB dryers use high-performanceball or butterfly valves for switching andpurge operations. These non-lubricated valvesare designed specifically for high temperatureapplications and feature stainless steelinternals as well as filled PTFE seats andinclude double-acting pneumatic actuators.EH heated desiccant dryerIngersoll Rand EH heated desiccant dryersincorporate an external heater to heat drypurge air. This allows EH dryers to divertsignificantly less dry air from the air systemfor regenerating desiccant than is required byheatless dryers.Both EH heated and HB heated blower modelsprovide the reliability and safety features ofheatless dryers, withincreased energyefficiency. Thesefeatures includeheatless back-upmode in the event of aAvailable in sizes ranging from 4.2 nm3/min.heater or blower(150 scfm) to 226.5 nm3/min. (8,000 scfm),malfunction and anIngersoll Rand EH dryers deliver -40 C (-40 F)innovative solid-statepressure dew point air for critical applications.relay heater controlto extend valve andIngersoll Rand HB heated blower desiccantheater life. NEMA 4dryers are equipped with dedicated durableelectrical enclosurescentrifugal blowers to provide purge air forare standard andregeneration, eliminating the need to divert dryinclude an advancedcompressed air from the air system. Instead,multi-functionthe blower directs ambient air through andigital controller.external heater and then through the off-linetower to regenerate the desiccant. This meansmore compressed air is available for criticaldownstream applications. Available in sizesfrom 4.2 nm3/min. (150 scfm) to 226.5 nm3/min.(8,000 scfm), Ingersoll Rand HB dryers deliverHB heated blower desiccant dryer-40 C (-40 F) pressure dew point air.Desiccant Dryers 7

Benefits Of Desiccant DryersAll of our desiccant dryers are designed withenergy efficiency, reliability, productivityand safety in mind: Engineered for low pressure drop throughvalve selection, tower size and filter design.and provides ready access to fill and drain Optional Energy Management System (EMS)ports, increasing operator safety and easereduces purge consumption while maintaininga constant dew point, monitors the dew pointHigh efficiency heaterreduces air needed toregenerate desiccant. Low profile places valves at operator’s levelof maintenance. Pre-filter and after-filter protect desiccantand extends the dryer cycle to greatlyand downstream air from oil contaminationreduce energy costs.and particulates to help improve air quality, Large sound attenuating purge mufflersminimize noise and include built-in reliefvalves to enhance safety.increasing productivity. Easy to replace stainless steel desiccantscreen keeps downtime to a minimum. Heater and/or blower controlled by outletregeneration temperature that shuts off toAfter-filters help improveair quality, increasingproductivity.save electrical power once desiccant hasbeen thoroughly regenerated (available withEMS on heated dryers).Stainless steel desiccantscreens preventcontamination ofthe downstream airsystem and are easilyremoved for cleaning.Low profile design with angled manifoldsmakes maintenance a snap!8 Desiccant Dryers

Ingersoll Rand DesiccantDryer ControlsAll Ingersoll Rand desiccant dryers, models HL,EH and HB, are supplied with a digitalelectronic multi-function controller as standardequipment. This is the dryer’s command center.The advanced digital controller is programmedto execute all valve switching functions, as wellas to completely monitor dryer operations.Further, it is MODBUS compatible permittingconnection to MODBUS-capable networks andmaking some remarkable enhanced dryeroperating functions. The controller’sfull-featured panel includes: Backlit LCD display for viewing criticaldryer parameters in all lighting conditions Integrated keypad, providing user withaccess to all internal functions andselectable displays Schematic depiction of dryer offering visualindication of current operating status Remote alarm contact Failure code storage Multiple displays, from “Dryer On/OffControl” to “Regeneration Sequence Status”Desiccant Dryers 9

Ingersoll Rand.At Your ServiceNo matter where your facility is located, Ingersoll Randis committed to serving you 24 hours a day, seven daysa week. We’re available to support you with innovative andcost-effective service solutions that will keep you runningat peak performance.Count on Ingersoll Rand forAll Your Air System RequirementsAir Quality Filtration Point-of-useair treatment Dryers Air sampling test kits Dew point metersLet Ingersoll Rand handle the pressures of owning a compressedair system with our signature service contract.With PackageCare, you can.Environmental Condensatemanagement Lubricants Water filtrationInstallation SimplAir piping Intelliflow systempressure control Drains Fusible disconnectsMaintenance Hard parts Consumables Service contractsPower Management Variable speed drives Line reactors System controllers Safety switchesEnergy Efficiency System airpressure controllers Automated airsystem controls No-loss drains System audits10 Desiccant Dryers Control costs and keep yourequipment running at peakefficiency. Protect yourself from all repairand replacement expenses overthe life of the agreement. Maintain or improve theoperational efficiency of anycompressor, regardless of age,make or model. Ensure long-term value andsatisfaction from your system.