838 Cons Guide - carotek.com

1 REACTORM akeup WaterCondensateCondensatefrom PlantHP steam to PlantWATERTREATMENTPOLISHERPOLISHERLP steam to PlantLP SteamDEAERATORVENTCONDENSERBURNERLP SteamHP SteamLP SteamCondensate ReturnCondensate ReturnCondensate ReturnHP Condensate ReturnBOILER 1 BOILER 2LP SteamTANK HEATERJACKETEDKETTLEROTATINGDRYERFLASHTA NKSEPARATORPUMPRECEIVEREXHAUST HEADPUMPRECEIVERPUMPRECEIVERTURBINEFLASH TANKS team Conservation Guidelines for Condensate DrainageArmstrongSteam and Condensate Group, 816 Maple St., Three Rivers, MI 49093 USA Phone: (269) 273-1415 Fax: (269) of Contents3 Recommendation Charts and Instructions for Inverted Bucket steam Float & Thermostatic steam Controlled Disc steam Thermostatic steam Automatic Differential Condensate Trap to Trap: steam Distribution Tracer steam Heating Air and Tube Heat Stationary steam Chamber Dryers Requiring Syphon Absorption Selection and Safety and Sizing steam Supply and Condensate Return Engineering Heat - Specific 2011 Armstrong International, N101-Revised 2/8/11 10:13 AM Page 5 Bringing Energy Down to EarthSay energy.

2 Think environment. And vice company that is energy conscious is also environmentallyconscious. Less energy consumed means less waste, feweremissions and a healthier short, bringing energy and environment together lowers the cost industry must pay for both. By helping companiesmanage energy, Armstrong products and services are alsohelping to protect the has been sharing know-how since we invented the energy-efficient inverted bucket steam trap in 1911. In theyears since, customers savings have proven again and againthat knowledge notshared is energy s developments and improvements in steam trapdesign and function have led to countless savings in energy,time and money. This section has grown out of our decades of sharing and expanding what we ve learned. It deals with theoperating principles of steam traps and outlines their specificapplications to a wide variety of products and industries.

3 You ll find it a useful complement to other Armstrong literatureand the Armstrong steam -A-ware software program for sizingand selecting steam traps, pressure reducing valves andwater heaters, which can be requested through Armstrong sWeb site, section also includes Recommendation Charts that summarize our findings on which type of trap will give optimum performance in a given situation and and Condensate Group, 816 Maple St., Three Rivers, MI 49093 USA Phone: (269) 273-1415 Fax: (269) :This section is intended to summarizegeneral principles of installation and operation of steamtraps, as outlined above. Actual installation and operationof steam trapping equipment should be performed only by experienced personnel. Selection or installationshould always be accompanied by competent technicalassistance or advice.

4 This data should never be used as a substitute for such technical advice or encourage you to contact Armstrong or its local representative for further N101-Revised 2/3/11 12:24 PM Page CG1 ArmstrongSteam and Condensate Group, 816 Maple St., Three Rivers, MI 49093 USA Phone: (269) 273-1415 Fax: (269) for Using the Recommendation ChartsA quick reference Recommendation Chart appears throughoutthe HOW TO TRAP sections of this catalog, pages CG-17 feature code system (ranging from A to Q) supplies youwith at-a-glance information. The chart covers the type of steam traps and the majoradvantages that Armstrong feels are superior for each particular example, assume you are looking for information concerning the proper trap to use on a gravity drained jacketed kettle.

5 You to the How to Trap Jacketed Kettles section, pages CG-35 to CG-36, and look in the lower right-handcorner of page CG-35. The Recommendation Chartlocated there is reprinted below for your convenience.(Each section has a Recommendation Chart.) Jacketed Kettles, Gravity Drain in the first column under Equipment Being Trapped and read to the right for Armstrong s 1st Choice and FeatureCode. In this case, the first choice is an IBLV and the feature code letters B, C, E, K, N are refer to Chart CG-2 below, titled How VariousTypes of steam Traps Meet Specific OperatingRequirements and read down the extreme left-hand column to each of the letters B, C, E, K, N. The letter B, for example, refers to the trap s ability to provideenergy-conserving the line for B to the right until you reach the column that corresponds to our first choice, in this casethe inverted bucket.

6 Based on tests and actual operatingconditions, the energy-conserving performance of theinverted bucket steam trap has been rated Excellent. Follow this same procedure for the remaining Inverted Bucket TrapIBLV Inverted Bucket Large VentBM Bimetallic TrapF&T Float and Thermostatic TrapCD Controlled Disc TrapDC Automatic Differential Condensate ControllerCV Check ValveT Thermic BucketPRV Pressure Reducing Valve(1) Drainage of condensate is continuous. Discharge is intermittent.(6) Cast iron traps not recommended.(2) Can be continuous on low load.(7) In welded stainless steel construction medium.(3) Excellent when secondary steam is utilized.(8) Can fail closed due to dirt.(4) Bimetallic and wafer traps good.(9) Can fail either open or closed, depending upon the design(5) Not recommended for low pressure the BeingTrapped1st Choice andFeature CodeAlternate ChoiceJacketed KettlesGravity DrainIBLVB, C, E, K, NF&T or ThermostaticJacketed KettlesSyphon DrainDCB, C, E, G, H, K, N, PIBLVC hart CG-1.

7 Recommendation Chart (See chart below for Feature Code References.)FeatureCodeCharacteristicIBB MF&TDiscThermostaticDCAM ethodofOperation(1) Intermittent (2) Intermittent ContinuousIntermittent (2) IntermittentContinuousBEnergyConservatio n(TimeinService)ExcellentExcellentGoodPo orFair(3) ExcellentCResistancetoWearExcellentExcel lentGoodPoorFairExcellentDCorrosionResis tanceExcellentExcellentGoodExcellentGood ExcellentEResistancetoHydraulicShockExce llentExcellentPoorExcellent(4) PoorExcellentFVents Air and CO2at steam TemperatureYesNoNoNoNoYesGAbilitytoVentA iratVeryLowPressure(1/4psig)Poor(5) NRExcellent(5) NRGoodExcellentHAbilitytoHandleStart-UpA irLoadsFairExcellentExcellentPoorExcelle ntExcellentIOperationAgainstBackPressure ExcellentExcellentExcellentPoorExcellent ExcellentJResistancetoDamageFromFreezing (6)

8 GoodGoodPoorGoodGoodGoodKAbilitytoPurgeS ystemExcellentGoodFairExcellentGoodExcel lentLPerformanceonVeryLightLoadsExcellen tExcellentExcellentPoorExcellentExcellen tMResponsivenesstoSlugsofCondensateImmed iateDelayedImmediateDelayedDelayedImmedi ateNAbilitytoHandleDirtExcellentFairPoor PoorFairExcellentOComparativePhysicalSiz e(7) LargeSmallLargeSmallSmallLargePAbilityto Handle FlashSteam FairPoorPoorPoorPoorExcellentQMechanical Failure(OpenorClosed)OpenOpenClosed(8) Open(9)OpenChart CG-2. How Various Types of steam Traps Meet Specific Operating Requirements13808 N101-Revised 2/3/11 12:24 PM Page CG2 ArmstrongSteam and Condensate Group, 816 Maple St., Three Rivers, MI 49093 USA Phone: (269) 273-1415 Fax: (269) They to Use ThemThe heat quantities and temperature/pressure relationships referred to inthis section are taken from the Propertiesof Saturated steam table.

9 Definitions of Terms UsedSaturated Steamis pure steam at thetemperature that corresponds to theboiling temperature of water at the existing and Gauge PressuresAbsolute pressure is pressure inpounds per square inch (psia) above a perfect vacuum. Gauge pressure ispressure in pounds per square inchabove atmospheric pressure, which pounds per square inch pressure (psig) plus equalsabsolute pressure. Or, absolute pressureminus equals gauge Relationship(Columns 1, 2 and 3). For every pressure of pure steam there is a corresponding temperature. Example:The temperature of 250 psig puresteam is always 406 of Saturated Liquid(Column 4).This is the amount of heat required to raise the temperature of a pound of water from 32 F to the boiling pointat the pressure and temperatureshown.

10 It is expressed in British ther-mal units (Btu).Latent Heat or Heat of Vaporization(Column 5). The amount of heat(expressed in Btu) required to change a pound of boiling water to a pound ofsteam. This same amount of heat isreleased when a pound of steam is condensed back into a pound of heat quantity is different for everypressure/temperature combination, asshown in the steam Heat of steam (Column 6). Thesum of the Heat of the Liquid (Column4) and Latent Heat (Column 5) in Btu. It is the total heat in steam above 32 Volume of Liquid(Column 7).The volume per unit of mass in cubicfeet per Volume of steam (Column 8).The volume per unit of mass in cubicfeet per the Table Is UsedIn addition to determining pressure/temperature relationships, you cancompute the amount of steam that willbe condensed by any heating unit ofknown Btu output.