Rev: 94020-3D5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
1
94020
Features • Suitable materials available for
corrosive/extreme temperatureservicepalletreactionlipforsmoothliftandreseating
• Palletreactionlipforsmoothliftand
reseating
• Vertical lift pallets assure reliableoperationandmaximumflow
• Floating diaphragm results in apositivesealandminimalblow-down
• “All weather” coating, insulationjacketsandsteamjacketingoptionsavailable
• CapacitycertifiedtoAPIStandards
The Shand& JursModel 94020ConservationVentisdesignedutilizingover 90 yearsofexperience inproducinghighqualityanddependableconservationfittings.Continueddesignimprovementsprovidetheseventswithhighefficiency,maximumflowcapacityandminimumleakage.Theeasilyserviceableconfigurationand lightweightconstruction reducesmaintenanceandinstallationcosts.
Standardmaterialsofconstructionare lowcopperaluminum,cast iron,ductile iron,caststeeland316stainlesssteelforbodymaterials.Aluminum,stainlesssteelandsteelbodyventscomestandardwithintegralseatsandhaveoptionalreplaceableseats.Castironandductileironbodiescomewithreplaceableseatsasstandarddesign.Replaceableseatsaremadeofcorrosion resistantmolded thermosettingphenolic,Teflon,aluminum,316stainlesssteelorstainlesssteelTefloncoatedandareeasilyreplaced.
DiaphragmsareaircushionseatedandareconstructedofFEPTeflonforreliabilityandextendedservicelife.Teflondiaphragms contribute tohigh resistance toadhesionof iceandgum formations, thusassuringprotection against pallet sticking to the seatingsurface.Thebodyisself-draininganddripringskeepcondensatesfromtheseatingsurfaces.Thecarefullyengineeredbody, seat,andpalletassembly resultsina superiorcombinationof tight sealingandhighcapacity at lowover-pressurewithminimal blowdown.
ConservationVentsareavailable ina full rangeofsizesandconfigurations,suchasclosedventhoods(pipe-away), cryogenic hoodsand flame snuffers.Standardpressureandvacuumsettingsare1/2oz./sq.in.The94020ConservationVentisavailablewithoptionalpressureandvacuumlimitswitchesandvisualindicators.
Expanda-Seal Shand&Jurs“Expanda-Seal”optionisavailableonallpressurepalletassemblies.Thisfeaturesignificantlyreducesleakage.TheballooningeffectoftheTeflondiaphragmeffectivelysealsthevalve.
The“Expanda-Seal”featureensureslessthan.5SCFHofairat95%ofthesetpoint.
94020 Conservation Vent (Pressure & Vacuum)
OpenVent
ClosedVent
Pressure Below Set Point Approaching Set Point Set Point Exceeded
5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
Rev: 94020-3D
2
94020
Conservation Vent Specifications:
Sizes: 2’’,3’’,4’’,6’’,8’’,10”&12”
Settings*:StandardPressure&Vacuum:1/2oz./in.2(.865in.W.C.)
Expanda-Seal Pressure Setting:1.5oz./in.2Minimum(ConsultFactoryforlowersettings)
Maximum Setting W/O Modification: (Pressure) (Vacuum)**2”: 18oz./in.2 8oz./in.23”: 18oz./in.2 9oz./in.24”: 18oz./in.2 11oz./in.26”: 12oz./in.2 12oz./in.28”: 10oz./in.2 14oz./in.210”: 8oz./in.2 17oz./in.212”: 6oz./in.2 21oz./in.2
Service and Body Material:Normal:CastLowCopperAluminumLowTemperature:CastLowCopperAluminumSevere:CastIron,DuctileIron,CastSteel,Cast316StainlessSteelIntegralSeats:Sameasbody;Aluminum,316SS,CastSteelwith316StainlessSteelseatoverlay
Temperature Range: BodyandSeal-40oFto220oF.OptionsforProcessTemperatureRangesof-300oFto500oF
Replaceable Seats:Rytonfor:2”sizePhenolicfor:3”Thru12”sizesAluminumfor:2”,3”,4”,6”,8”,10”&12”sizes316StainlessSteelfor:2”,3”,4”,6”,8”,10”&12”sizesTeflonfor:2”,3”,4”,6”,8”sizesSSTeflonCoatedfor:2”,3”,4”,6”,8”,10”&12”sizes
Type of Flange Connection:Screwedorflangedfor:2”&3”sizesFlangedfor:4”,6”,8”,10”&12”sizesRaisedfaceflangeavailable,exceptforaluminumbodymaterial.
Options Available:FlameSnuffer forall sizes (openvent)andmaterial,except lowtemperatureservice.Closedvent forallsizesandmaterials.Materialsubstitutionsasrequired.CleaningforLOX/LINservice.NOTES: **Modificationsmayberequiredtovacuumportforinstallationswhereproductcontaminationmayoccur.Seefigure4forPrincipleofOperation.Caution—anyobstructiontovacuumportmayalterthesetpoint.
Component Normal Aluminum Low Temperature SevereBody CastAluminum CastAluminum CastIron/DuctileIron CastSteel 316StainlessSteel
Cover Aluminum Aluminum Steel Steel 316StainlessSteel
Hood 18-8StainlessSteel,PA1 Aluminum2 18-8StainlessSteel,PA1 18-8StainlessSteel,PA1 316StainlessSteelSeats3 Aluminum Aluminum 316StainlessSteel C.S.with316SSOverlay 316StainlessSteel
StemGuide GalvanizedIron 316StainlessSteel GalvanizedIron GalvanizedIron 316StainlessSteelPallets Aluminum Aluminum 316StainlessSteel 316StainlessSteel 316StainlessSteel
PressureStem 316StainlessSteel 316StainlessSteel 316StainlessSteel 316StainlessSteel 316StainlessSteelVacuumStem Aluminum4 Aluminum4 316StainlessSteel 316StainlessSteel 316StainlessSteel
Screens GalvanizedSteel 304StainlessSteel 304StainlessSteel 304StainlessSteel 316StainlessSteelRetainer Aluminum Aluminum 316StainlessSteel 316StainlessSteel 316StainlessSteelHardware ZincPlatedSteel 316StainlessSteel 316StainlessSteel ZincPlatedSteel 316StainlessSteelDiaphragms FEPTeflon FEPTeflon FEPTeflon FEPTeflon FEPTeflon
Standard Materials of Construction
1.18-8SSfor2”,3”,4”,6”&8”sizes;spunalum.for10”&12”sizes.2.2”,3”,4”,6”,8”,10”&12”sizes;alum.enclosurew/flapper.
3.MaterialsameasbodyexceptCIandDI.4.316SSforelevatedsettings.
NOTES:
PA-SpunAluminum CS-CastSteel
Rev: 94020-3D5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
3
94020
Figures 1and3 show the relationof thepressureorvacuumpalletassemblytotheseatwhenatmosphericandtankpressuresareequal.The“wraparound”effectoftheresilientdiaphragmontheedgeoftheseatandtheresultinghighratioofseatingforcetoseatingareaaffordsatightseal.
Asthepressureorvacuumincreases,thepalletbeginsto rise.Because there is stillawrap-aroundeffectontheedgeoftheseat,goodsealingismaintained.Teflondiaphragmmemoryandlappedseatingsurfacefurtherenhancesealingcharacteristics.
As increasing pressure or vacuumcontinues to liftthepallet,thediaphragmisheldincloseproximitytotheseatbytheflatplanememoryof thediaphragmmaterial.
Assetpressureorvacuumisreachedthediaphragmleavestheseat(seeFigures2and4)andtheescapingvaporliftsthepalletevenfurther.
Thevacuumpalletisguidedinthesamemannerasthepressurepallet. Botharepallet stemandpallet sideguidedforsmoothmovement.
Steam Jacket Option:
Designed for useon tanks containing liquidswhosevaporscrystallizeatambient temperatures. Stainlesssteelpressureandvacuumpalletsarecasedinasteamheated jacket ensuring the valveswill be free fromplugging.Thejacketissteelorstainlesssteelconstruction.Thestandardjacketcanwithstandsteampressuresupto100psig.Higherpressureratingsareavailable.
Principle of Operation
5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
Rev: 94020-3D
4
94020
6”, 8”, 10” & 12” Cryogenic Hood Model
Vent Size* (In.)Dimensions in Inches
R Q S T U V W6 30 121/8 55/8 81/8 81/2 111/2 171/168 341/2 1411/16 73/8 95/8 10 121/2 211/410 41 171/2 83/8 113/8 115/8 143/16 251/212 441/2 193/4 10 125/8 13 153/8 297/8
Rev: 94020-3D5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
5
94020
Valve Size
Outlet Size “H” “J” “K” “L” “B”
2” 2” 13 111/8 51/32 41/4 83/42” 3” 13 111/8 51/32 41/4 83/43” 3” 163/8 131/4 59/16 51/4 111/83” 4” 163/16 133/4 531/32 51/4 1015/164” 4” 20 203/8 7 61/2 131/24” 6” 191/4 153/4 71/32 515/16 135/166” 6” 261/4 211/4 93/8 83/8 177/86” 8” 263/16 211/4 1011/32 81/4 1715/168” 8” 315/8 251/2 1111/16 93/4 217/88” 10” 315/8 263/16 1223/32 93/4 217/810” 10” 377/8 30 137/8 1119/32 269/3210” 12” 377/8 301/4 1429/32 1119/32 269/3212” 12” 433/8 337/8 161/4 1213/16 309/1612” 14” 433/8 337/8 1629/32 1213/16 309/16
94020 Open Vent
Alldesignssubjecttochange.Certifieddimensionsandspecificationsavailableuponrequest
NOTES:
1. ConnectionsizematchesANSI,DIN&JIS.2. MountingHolesstraddlecenterlineexcept:2”&3”sizes; holesareoncenterline.3. OptionalNPTAdapteravailablefor2”&3”.
NOTES:
1. ConnectionsizematchesANSI,DIN&JIS.2. MountingHolesstraddlecenterlineexcept:2”&3”sizes; holesareoncenterline.3. OptionalNPTAdapteravailablefor2”&3”.
*TableDoption5forsamesizeinletandoutletconnectionshasbeenobsoletedandreplacedbyTableDoption6.Dimensionsdonotmatch.ConsultFactoryforreplacementvalve.
94020 Closed Vent
Valve Size “B” “D” “E” Diameter
“F”2” 9 151/4 111/8 127/83” 111/8 1715/16 133/4 139/164” 131/2 211/2 153/4 1515/166” 1715/16 281/2 183/4 185/88” 217/8 313/16 211/4 185/810” 261/4 405/8 281/8 259/1612” 309/16 445/8 321/4 297/8
*
*
*
*
*
*
5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
Rev: 94020-3D
6
94020
• Lowcopperaluminumalloyconstructionreducesneedforspecialmaterialsincorrosiveandextremetemperatureservice
• Capacity certified in accordance with APIstandards
• Expanda-Sealdiaphramforreducedleakage
• Unique floatingdiaphragmconstructionassurespositive seal and minimal blowdown, thusconservingvaluabletankcontent
• Peripheralandstemguidedpressurepalletassuressmoothliftandclosure
ConservationVents providetankventingandbreathingwithhighefficiency,maximumflowcapacityandminimumleakage.Standardmaterialsofconstructionincludelowcopperaluminum,castiron,ductileiron,caststeel,and316StainlessSteel.The94020comesinopenorclosedventversions,andinsizes2”through12”.Cryogenichoods,flamesnuffers,limitswitchesandsteamjacketingandsteamtracingareavailable.
Benefits
Model Number Selection Themodelnumberwillhaveabasenumber94020followedby8digitnumbers.Thesedigitswillrepresent7setsofoptiontables.
94020 - AB - CD - EF - GH
*NOTE: IfATEX(A)Unitisrequired,pleaseuse94020AABCDEFGH.
IfCE(C)Unitisrequired,pleaseuse94020CABCDEFGH.
Ordering Information Specify:
1.Model94020ConservationVent2.SizeandBodyMaterial3.ScrewedorFlangedConnectionon2”and3”Size4.ClosedVentorVenttoAtmosphere(Withorwithoutflamesnuffer)5.PressureandVacuumSettings(ifotherthannormalsetting)6.TypeofCleaning(ifforoxygenservice)7.OptionalMaterialsofConstruction,asRequired8.ToSpecifyCEforOrdinaryEULocationsuse94020CABCDEFGH9.ToSpecifyATEXCertificationforGroupIIB,IIAEULocationsuse94020AABCDEFGH.ATEXCertificationincludesCEMark.
94020 Ordering Guide
Rev: 94020-3D5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
7
94020
Table AB - Size and Body MaterialOption
AB Size Type of Connection Body Material Option
AB Size Type of Connection Body Material
11 2” NPT Aluminum *35/45 4“ Flanged CastIron/DuctileIron12 2” Flanged Aluminum 55 4” Flanged CastSteel21 2” NPT Alum.CryoHood 75 4” Flanged 316StainlessSteel22 2” Flanged Alum.CryoHood 16 6” Flanged Aluminum
*31/41 2” NPT CastIron/DuctileIron 26 6” Flanged Alum.CryoHood*32/42 2” Flanged CastIron/DuctileIron *36/46 6” Flanged CastIron/DuctileIron51 2” NPT CastSteel 56 6” Flanged CastSteel52 2” Flanged CastSteel 76 6” Flanged 316StainlessSteel71 2” NPT 316StainlessSteel 17 8“ Flanged Aluminum72 2” Flanged 316StainlessSteel 27 8” Flanged Alum.CryoHood13 3” NPT Aluminum *37/47 8” Flanged CastIron/DuctileIron14 3” Flanged Aluminum 57 8” Flanged CastSteel23 3” NPT Alum.CryoHood 77 8” Flanged 316StainlessSteel24 3” Flanged Alum.CryoHood 18 10” Flanged Aluminum
*33/43 3” NPT CastIron/DuctileIron 28 10” Flanged Alum.CryoHood*34/44 3” Flanged CastIron/DuctileIron *38/48 10” Flanged CastIron/DuctileIron53 3” NPT CastSteel 58 10” Flanged CastSteel54 3” Flanged CastSteel 78 10” Flanged 316StainlessSteel73 3” NPT 316StainlessSteel 19 12” Flanged Aluminum74 3” Flanged 316StainlessSteel 29 12” Flanged Alum.CryoHood15 4” Flanged Aluminum *39/49 12” Flanged CastIron/DuctileIron25 4” Flanged Alum.CryoHood 59 12” Flanged CastSteel
79 12” Flanged 316StainlessSteel*3X=CastIron 4X=DuctileIron**ForNPTConnections,SpecifyTableC0
Option C Description0 FFANSI150lb1 *RFANSI150lb2 DINPN16FF3 DINPN16RF*4 JIS10KFF5 JIS10KRF*
Table C - Flange Type
*RFnotavailableinAluminum
Option D Description1 OpenVent
2 OpenVentw/FlameSnuffer
3 Closed,StandardOutlet>Inlet*
4 PipeAway,P&V
6 PipeAway,SameSizeInlet,Outlet,Seat
7 OpenVentwith“AllWeather”Coating
8 OpenVentwithFlameSnufferwith“AllWeather”Coating
9 Closed,StandardOutlet>Inletwith“AllWeather”Coating
A PipeAway,SameSizeInlet,Outlet,Seatwith“AllWeatherCoating
Table D - Vent Type
*Standardclosedvent(outeletisonesizelargerthantheinlet).Ex.2”InletX3”Outlet,6”InletX8”Outlet.NOTE: ReplacedOption5.Dimensionsarenotidetntical.ConsultFactoryifreplacementvalveisrequired.
5911 Butterfield Road Hillside, IL 60162 • tel: (708) 236-6000 • fax: (708) [email protected] • www.ljtechnologies.com • ISO 9001: 2008 Certified
Conservation Vent (Pressure & Vacuum)
Rev: 94020-3D
8
94020
Option E Description0 NormalFEP/N80901 Expanda-SealFEP/N80902 NormalFEP(All)3 Expanda-SealFEP(All)4 NormalViton5 Expanda-SealViton6 NormalPTFE8 NormalBuna9 Expanda-SealBuna
Option F Description Material
1 **StandardPressureandVacuumSetting=0.5oz/sq.in Lead
2 Over2.9oz/sq.in.toMaximumSetting Lead
3 >Standardto2.9oz./sq.in. Lead4 **StandardSetting 316SS
5 Over2.9oz/sq.in.toMaximumSetting 316SS
6 >Standardto2.9oz./sq.in. 316SS
7IncrementalWeightsPressureOnly2.9Oz.-14Oz.(5in.W.C.-24in.W.C.)
Lead
8
StandardIncrementalWeightSetPressureOnly6”-16”W.C.in1”IncrementsIncluding(1)-1/2In.and(2)-1/4In.W.C.Weights
Lead
**Expanda-Sealmin.pressuresetting:1.5oz/sq.in.Option G Seat Pallet0 Standard* Standard*+1 Teflon Standard*2 Aluminum Standard*+3 Phenolic Standard*4 StainlessSteel Standard*5 TeflonCoatedSS Standard*
A Standard* 316StainlessSteel+B Teflon 316StainlessSteelC Aluminum 316StainlessSteel+D Phenolic 316StainlessSteelE StainlessSteel 316StainlessSteelF TeflonCoatedSS 316StainlessSteel
*SeeMaterialsofConstruction+TheseOptionsnotAvailablewithATEXModelsOptionsA-FareapplicableforAluminumbodiesonly.316SSPalletisstandardonallotherbodyoptions.
Option H Cleaning Trim0 Normal Standard1 LOX Standard2 LIN Standard5 Normal 316StainlessSteel6 LOX 316StainlessSteel7 LIN 316StainlessSteel8 Normal Monel9 LOX MonelA LIN Monel
ForanATEXCertifiedValvechooseOption5,6,7.TrimincludesStem,StemGuides,SideGuides,Nuts,Bolts,andScreen.
NOTE:LOX/LINcleaningforCryogenicBreathersofaluminumconstructionincludesdegreasingbeforeassemblyonly!
Table E - Seal Type and Softgoods Table F - Pressure Range & Load Weight Material
Table G - Seat & Pallet Material
Table H - LOX (Liquid Oxygen) & LIN (Liquid Nitrogen) Cleaning, Trim