3-day gen open 112003 2a [compatibility mode]
TRANSCRIPT
![Page 1: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/1.jpg)
B i O iB i O iBasic Operation Basic Operation
Conventional “Wet” Conventional “Wet” Mechanical SealsMechanical Seals
© 2003 John Crane EAA 858585
![Page 2: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/2.jpg)
Basic Mechanical SealBasic Mechanical Seal
868686
Loose ring set screwed to the shaftLoose ring set screwed to the shaft
![Page 3: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/3.jpg)
Basic Mechanical SealBasic Mechanical Seal
Wear here will create leakageWear here will create leakage
878787
OO--ring prevents leakage through the borering prevents leakage through the bore
![Page 4: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/4.jpg)
Basic Mechanical SealBasic Mechanical SealHeat generated hereHeat generated here Leak pathLeak path
Large componentLarge component
888888
Spring ensures automatic adjustmentSpring ensures automatic adjustment
![Page 5: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/5.jpg)
Basic Mechanical SealBasic Mechanical Seal
Gasket or OGasket or O--ringring
API Plan 2API Plan 2Inserted stationary componentInserted stationary component
![Page 6: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/6.jpg)
Basic Mechanical SealBasic Mechanical Seal
API Plan 2API Plan 2
![Page 7: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/7.jpg)
Basic Mechanical SealBasic Mechanical Seal
API Plan 2API Plan 2
![Page 8: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/8.jpg)
Basic Mechanical SealBasic Mechanical Seal
API Plan 2API Plan 2
![Page 9: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/9.jpg)
Heat control / removalHeat control / removal
..
![Page 10: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/10.jpg)
Heat control / removalHeat control / removal
Product recirculation line.Product recirculation line.API Plan 11API Plan 11
949494
![Page 11: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/11.jpg)
Basic Mechanical SealBasic Mechanical SealRecirculationRecirculationfor coolingfor cooling
959595
API Plan 11API Plan 11
![Page 12: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/12.jpg)
API Seal Flush PlanAPI Seal Flush Plan
![Page 13: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/13.jpg)
Seal Failure AnalysisSeal Failure Analysis
..
![Page 14: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/14.jpg)
Seal Failure AnalysisSeal Failure Analysis
..
![Page 15: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/15.jpg)
Basic Mechanical SealBasic Mechanical Seal
999999
Secondary SealSecondary SealPrimary SealPrimary Seal
Tertiary SealTertiary Seal
![Page 16: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/16.jpg)
Basic Mechanical SealBasic Mechanical Seal
Spring or Spring ForceSpring or Spring Force Mating Ring or SeatMating Ring or Seat
100100100
Primary Ring or FacePrimary Ring or Face
![Page 17: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/17.jpg)
Spring DriveSpring Drive
Left hand or right hand spring?Left hand or right hand spring?
![Page 18: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/18.jpg)
Mechanical SealMechanical SealMechanical Seal Mechanical Seal TheoryTheory
Primary SealPrimary Seal
© 2003 John Crane EAA 102102102
![Page 19: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/19.jpg)
Primary SealPrimary Seal
Mating Mating RingRing
Primary Primary RingRing RingRingRingRing
SpringsSprings
Higher pressure on outside diameterHigher pressure on outside diameter
SpringsSprings
Higher pressure on outside diameterHigher pressure on outside diameterHigher pressure holds faces closedHigher pressure holds faces closed
Fluid is forced between faces to lubricateFluid is forced between faces to lubricateSprings keep faces closed when no pressureSprings keep faces closed when no pressure
![Page 20: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/20.jpg)
Primary SealPrimary Seal
104104104Faces lapped flat to within 1 Faces lapped flat to within 1 -- 3 light bands3 light bands
![Page 21: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/21.jpg)
Film thickness = leakageFilm thickness = leakage
![Page 22: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/22.jpg)
Leakage Leakage -- Newtonian FluidsNewtonian FluidsDiameter (mm)
100
80
Speed (rpm)
80
60
4040
30
20
L e a k a g e (m l/h )Pressure (bar g)
0 2 4 6 8 10 12 14 16 18 20 0.01 0.1 1 10 100
Balanced Seal Unbalanced Seal
![Page 23: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/23.jpg)
Primary SealPrimary Seal
Fluid film thickness is very importantFluid film thickness is very importanttoo thintoo thin wear causing early seal failurewear causing early seal failuretoo thin too thin -- wear, causing early seal failurewear, causing early seal failuretoo thick too thick -- visible leakagevisible leakage
bbMust be:Must be:
present present -- beware dry runningbeware dry runningstablestableclean clean -- beware abrasive wear symptomsbeware abrasive wear symptomsreasonable viscosityreasonable viscositytemperature controlledtemperature controlledacceptable pressure.acceptable pressure.
![Page 24: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/24.jpg)
Abrasive WearAbrasive Wear
..
![Page 25: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/25.jpg)
Is this abrasive wear?Is this abrasive wear?
..
![Page 26: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/26.jpg)
Abrasives or no lubrication?Abrasives or no lubrication?
..
![Page 27: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/27.jpg)
Seal Failure AnalysisSeal Failure Analysis
![Page 28: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/28.jpg)
Primary Seal Primary Seal -- AbrasivesAbrasives
How do we prevent How do we prevent damage and failure damage and failure
d b b i ?d b b i ?caused by abrasives?caused by abrasives?
112112112
![Page 29: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/29.jpg)
Primary Seal Primary Seal -- AbrasivesAbrasives
![Page 30: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/30.jpg)
Primary Seal Primary Seal -- AbrasivesAbrasives
![Page 31: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/31.jpg)
Cyclone SeparatorCyclone Separator
To mechanical sealTo mechanical seal
From pump dischargeFrom pump discharge
To pump suctionTo pump suction
![Page 32: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/32.jpg)
Cyclone SeparatorCyclone Separator
..
116116116
![Page 33: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/33.jpg)
Abrasive WearAbrasive Wear
Cyclone separatorCyclone separator API Plan 31API Plan 31
Filtered recirculationFiltered recirculation API Plan 12API Plan 12
Clean flushClean flush API Plan 32API Plan 32
Reverse circulationReverse circulation API Plan 13API Plan 13
Pressurised double sealPressurised double seal API Plan 53 or 54API Plan 53 or 54Pressurised double sealPressurised double seal API Plan 53 or 54API Plan 53 or 54
UpUp--Stream Pumping sealStream Pumping seal
Hard facesHard faces
Seals designed for very heavy abrasivesSeals designed for very heavy abrasivesg y yg y y
![Page 34: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/34.jpg)
Seal for Heavy Abrasive ServiceSeal for Heavy Abrasive Service
Type 5860Type 5860
![Page 35: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/35.jpg)
ViscosityViscosity
Seal Type
VISCOSITY (cSt)
Up to
500 to
750 to
1000 to
3000 to
3500 and
1500 to
2000 to
2500 toto
500 to
750 to
1000 to
1500 to
3500 and
Above
Pusher Seals with Positive Drive
Standard Seal & Mating Ring
Standard Seal & Pinned or Clamped
Mating Ring
Refer to John Crane
to2000
to2500
to3000
Elastomer Bellows Non-Pusher Seals
Standard Seal & Mating Ring
Standard Seal & Pinned or Clamped
Mating Ring
Standard Seal with Hard Faces Pinned or Clamped Mating Ring
Limited Velocity - See Below
Refer to John Crane
PTFE Bellows Non Pusher Standard Seal & Clamped Mating Ring Refer to John CraneNon-Pusher p g g
Metal Bellows Non-Pusher
Standard Seal & Mating Ring
Standard Seal & Pinned or Clamped
Mating Ring
Standard Seal with Hard Faces Pinned or Clamped Mating Ring
Limited Velocity - See Below
Refer to John Crane
R d dRecommended Minimum Radial Seal Clearance
Standard 5 mm 10 mm
Heating at Start-Up Optional Recommended
R f tMaximum Shaft Velocity (m/s) 10 3
Refer to John Crane
Seal Design Maximum 8 6 4
![Page 36: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/36.jpg)
Seal Failure AnalysisSeal Failure Analysis
![Page 37: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/37.jpg)
Seal Failure AnalysisSeal Failure Analysis
![Page 38: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/38.jpg)
Stable Fluid FilmStable Fluid Film
![Page 39: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/39.jpg)
Coning Out Coning Out –– Positive RotationPositive Rotation
![Page 40: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/40.jpg)
Coning Out Coning Out –– Positive RotationPositive Rotation
![Page 41: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/41.jpg)
Coning In Coning In –– Negative RotationNegative Rotation
![Page 42: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/42.jpg)
CStedyCStedy
Type 48 Refinery SealType 48 Refinery SealCStedy simulation.CStedy simulation.
Click hereClick hereType48.aasto run…to run…
126126126
![Page 43: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/43.jpg)
Type 48 Primary RingsType 48 Primary Rings
Type 48LPType 48LPType 48 MPType 48 MPType 48 HPType 48 HP
![Page 44: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/44.jpg)
Hydropad Primary RingHydropad Primary Ring
![Page 45: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/45.jpg)
Latest DevelopmentLatest Development
© 2003 John Crane EAA
![Page 46: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/46.jpg)
LaserFace TechnologyLaserFace Technology
![Page 47: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/47.jpg)
LaserFace TechnologyLaserFace Technology
Principle of OperationPrinciple of Operation
![Page 48: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/48.jpg)
LaserFaceLaserFace
Available TAvailable TRequired TRequired T -- ReducedReduced
PP
RR
EE
VapourVapourPressurePressure
Required TRequired T ReducedReduced
EE
SS
SS
PressurePressureCurveCurve
AA BBCC
LaserFaceLaserFaceEffectEffect
SS
UU
RRGasGas
Seal OperatingSeal OperatingAreaArea
EE
T E M P E R A T U R E (Tp)T E M P E R A T U R E (Tp)
![Page 49: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/49.jpg)
LaserFaceLaserFace
Friction reducedFriction reduced
Face temperatures are lowerFace temperatures are lower
Leakage remains negligible / acceptableLeakage remains negligible / acceptable
S l lif i t d dS l lif i t d dSeal life is extendedSeal life is extended
Operate closer to boiling pointOperate closer to boiling pointOperate closer to boiling pointOperate closer to boiling point
Reduce/eliminate expensive cooling.Reduce/eliminate expensive cooling.
![Page 50: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/50.jpg)
Primary SealPrimary Seal
Excessive start / stop operationExcessive start / stop operation
will drastically reduce seal life (MTBF will drastically reduce seal life (MTBF -- Mean Mean
Time Between Failure)Time Between Failure)
wear occurs between faces at startwear occurs between faces at start--upup
no lubricating fluid film presentno lubricating fluid film presentno lubricating fluid film presentno lubricating fluid film present
wear on drive mechanismwear on drive mechanism
l kl k / b/ bcan cause lockcan cause lock--up / bayonetingup / bayoneting
Is start / stop operation necessary?Is start / stop operation necessary? .
134134134
![Page 51: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/51.jpg)
Primary SealPrimary Seal
If faces are not flat contact generates heatIf faces are not flat contact generates heatIf faces are not flat, contact generates heatIf faces are not flat, contact generates heatExcessive wear = short lifeExcessive wear = short life
1 light band = 0.00001181 inch or 0.0003 mm1 light band = 0.00001181 inch or 0.0003 mm
![Page 52: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/52.jpg)
LappingLapping
..
136136136
![Page 53: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/53.jpg)
LappingLapping
..
137137137
![Page 54: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/54.jpg)
LappingLapping
![Page 55: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/55.jpg)
Flatness Checking Flatness Checking -- ToolsTools
![Page 56: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/56.jpg)
Flatness CheckingFlatness Checking
..
140140140
![Page 57: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/57.jpg)
Flatness CheckingFlatness Checking
![Page 58: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/58.jpg)
Flatness CheckingFlatness Checking
Distance between dark bands only affected by angle
of Optical Flat
![Page 59: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/59.jpg)
Flatness CheckingFlatness Checking
![Page 60: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/60.jpg)
Flatness CheckingFlatness Checking
..
144144144
![Page 61: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/61.jpg)
Flatness CheckingFlatness Checking
![Page 62: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/62.jpg)
Flatness CheckingFlatness Checking
![Page 63: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/63.jpg)
Flatness CheckingFlatness Checking
![Page 64: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/64.jpg)
Flatness CheckingFlatness Checking
![Page 65: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/65.jpg)
Reconditioning SealsReconditioning Seals
Best to return to supplierBest to return to supplier
Expert checking of ALL componentsExpert checking of ALL components
Components replaced or reconditionedComponents replaced or reconditionedComponents replaced or reconditionedComponents replaced or reconditioned
Latest design upLatest design up--datesdates
Full knowledge of materialsFull knowledge of materials
Check dimensions within correct tolerancesCheck dimensions within correct tolerancesCheck dimensions within correct tolerancesCheck dimensions within correct tolerances
Pressure testedPressure tested
As new.As new.
![Page 66: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/66.jpg)
HandlingHandling
Do not unpack seal until ready to fitDo not unpack seal until ready to fit
Avoid touching or handling facesAvoid touching or handling faces
Place seal on bench with face uppermostPlace seal on bench with face uppermost
on tissue paperon tissue paperon tissue paperon tissue paper
do not place face down, nor on its sidedo not place face down, nor on its side
Keep hands clean when fitting sealKeep hands clean when fitting seal
150150150
![Page 67: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/67.jpg)
HandlingHandling
Always carefully wipe lapped faces clean with Always carefully wipe lapped faces clean with y y p ppy y p pp
tissue and tissue and approvedapproved solvent just before solvent just before
placing togetherplacing togetherplacing togetherplacing together
John Crane recommend KemetJohn Crane recommend Kemet COCO 4242John Crane recommend Kemet John Crane recommend Kemet COCO--4242
Do not use lubricant on the facesDo not use lubricant on the facesDo not use lubricant on the faces.Do not use lubricant on the faces.
![Page 68: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/68.jpg)
Primary SealPrimary Seal
Primary Ring (Narrow Primary Ring (Narrow -- Softer) MaterialsSofter) MaterialsCarbonCarbon graphitegraphiteCarbonCarbon--graphitegraphite
resin impregnatedresin impregnatedantimony impregnatedantimony impregnatedantimony impregnatedantimony impregnated
Carbon converted to Silicon CarbideCarbon converted to Silicon Carbideresin impregnatedresin impregnatedresin impregnatedresin impregnated
![Page 69: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/69.jpg)
Primary SealPrimary Seal
C b t d tC b t d tCarbon converted toCarbon converted toSilicon CarbideSilicon Carbide
……
![Page 70: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/70.jpg)
Primary SealPrimary Seal
Carbon converted to Silicon Carbide (121)Carbon converted to Silicon Carbide (121)
Oven at 1625 Oven at 1625 –– 2225 2225 °°CC
Silicon Monoxide vapourSilicon Monoxide vapour
Several hours to convertSeveral hours to convert
e.g. 2 hours @ 1925 e.g. 2 hours @ 1925 °°C C ≈≈ 0.5 mm SiC depth0.5 mm SiC depth
![Page 71: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/71.jpg)
Primary SealPrimary Seal
Primary Ring (Narrow Primary Ring (Narrow -- Softer) MaterialsSofter) MaterialsCarbonCarbon graphitegraphiteCarbonCarbon--graphitegraphite
resin impregnatedresin impregnatedantimony impregnatedantimony impregnatedantimony impregnatedantimony impregnated
Carbon converted to Silicon CarbideCarbon converted to Silicon Carbideresin impregnatedresin impregnated
Solid Silicon CarbideSolid Silicon Carbidepure sinteredpure sintered
resin impregnatedresin impregnated
pure sinteredpure sinteredreaction bondedreaction bonded
Tungsten CarbideTungsten Carbidenickel or cobalt bondednickel or cobalt bonded
![Page 72: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/72.jpg)
Primary SealPrimary Seal
Mating Ring (Wide Mating Ring (Wide -- Harder) MaterialsHarder) Materials
NiNi i t™i t™NiNi--resist™resist™
high nickel cast iron; austenitic cast ironhigh nickel cast iron; austenitic cast iron
CeramicCeramic
99.5% aluminium oxide99.5% aluminium oxide
![Page 73: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/73.jpg)
Mating Rings: CeramicMating Rings: Ceramic
..
![Page 74: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/74.jpg)
Mating Rings: CeramicMating Rings: Ceramic
..
![Page 75: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/75.jpg)
Primary SealPrimary Seal
Mating Ring (Wide Mating Ring (Wide -- Harder) MaterialsHarder) Materials
NiNi i t™i t™NiNi--resist™resist™
high nickel cast iron; austenitic cast ironhigh nickel cast iron; austenitic cast iron
CeramicCeramic
99.5% aluminium oxide99.5% aluminium oxide
Silicon CarbideSilicon Carbide
pure sintered or reaction bondedpure sintered or reaction bondedpure sintered or reaction bondedpure sintered or reaction bonded
Tungsten CarbideTungsten Carbide
b l i k l b d db l i k l b d dcobalt or nickel bondedcobalt or nickel bonded
![Page 76: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/76.jpg)
MaterialsMaterials
Material
JC Code
Vickers Hardness
Thermal Conductivity W/m°C@20°C
Expansion Coefficient
X 10-6/°C
Thermal Shock
000’s W/m
Density 000’s kg/m3
/ / /
Silicon Carbide Pure Alpha Sintered 277 2500 125 4.0 24 3.1
Silicon Carbide +10% Si. Reaction Bonded 088 2500
+ softer Silicon 150 4.6 35 3.1
Converted Silicon Carbide/Carbon 121 2500
+ softer carbon 50 4.0 30 2.0
Tungsten Carbide +6% Cobalt 025 1500-1600 100 5.2 48 14.7
Tungsten Carbide +6% Nickel 005 1300-1500 80 5.6 43 14.7
Aluminium Oxide 99.5% Alumina 059 1500+ 26 6.9 6 3.9
Austenitic Cast Iron 13% Ni, 6% Cu 007 200 40 19.3 - 7.3
Carbon-Graphite Resin Impregnated 171 90
(estimated) 12 3.7 10 1.8
![Page 77: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/77.jpg)
Primary Seal Primary Seal -- SummarySummary
A mechanical seal is selfA mechanical seal is self--adjusting for wearadjusting for wear
Has three main parts :Has three main parts :--Has three main parts :Has three main parts :
Primary ring (narrower running face) + Secondary sealPrimary ring (narrower running face) + Secondary seal
Mating ring (wider running faceMating ring (wider running face -- harder) + Tertiary sealharder) + Tertiary sealMating ring (wider running face Mating ring (wider running face harder) Tertiary sealharder) Tertiary seal
Spring(s) / Spring ForceSpring(s) / Spring Force
The liquid film between the primary ring & mating ring is only 0.5 The liquid film between the primary ring & mating ring is only 0.5 --
3.0 microns thick.3.0 microns thick.
There are three main sealing areas :There are three main sealing areas :--
Primary Seal Primary Seal -- Primary ring & Mating ringPrimary ring & Mating ring
Secondary Seal Secondary Seal -- Primary ring & ShaftPrimary ring & Shaft
Tertiary SealTertiary Seal -- Mating ring & Housing.Mating ring & Housing.
![Page 78: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/78.jpg)
S lf AS lf ASelf AssessmentSelf Assessment
Questions / AnswersQuestions / Answers
© 2003 John Crane EAA
![Page 79: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/79.jpg)
Question 1Question 1
What are the main What are the main Primary Ring with its Primary Ring with its components that are components that are required in any required in any mechanical seal?mechanical seal?
Secondary SealSecondary Seal
Mating Ring with its Mating Ring with its Tertiary SealTertiary Sealmechanical seal?mechanical seal? Tertiary SealTertiary Seal
Spring(s) or Spring Spring(s) or Spring ForceForceForceForce
![Page 80: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/80.jpg)
Question 2Question 2
What is the purpose of What is the purpose of To keep the faces To keep the faces the springs?the springs? closedclosed
When pump is offWhen pump is off
At low pressureAt low pressureAt low pressureAt low pressure
By assisting the By assisting the hydraulic pressurehydraulic pressurey py p
![Page 81: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/81.jpg)
Question 3Question 3
What assists the What assists the The spring(s), or spring The spring(s), or spring hydraulic pressure on hydraulic pressure on the Primary Ring to the Primary Ring to keep the faces closed?keep the faces closed?
force (e.g., from metal force (e.g., from metal bellows)bellows)
keep the faces closed?keep the faces closed?
![Page 82: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/82.jpg)
Question 4Question 4
In most seal designs, In most seal designs, h i th MAXIMUMh i th MAXIMUM
On the outside diameterOn the outside diameterwhere is the MAXIMUM where is the MAXIMUM pressure in relation to pressure in relation to the seal faces?the seal faces?
Where is the MINIMUM Where is the MINIMUM i l ii l i
On the inside diameterOn the inside diameterpressure in relation to pressure in relation to the seal faces?the seal faces?
Remember Remember -- RULE 1RULE 1
![Page 83: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/83.jpg)
Question 5Question 5
Does the liquid being Does the liquid being Yes, in all conventional Yes, in all conventional sealed provide sealed provide lubrication at the lubrication at the contact area betweencontact area between
wet sealswet seals
contact area between contact area between the Primary Ring and the Primary Ring and the Mating Ring?the Mating Ring?
![Page 84: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/84.jpg)
Question 6Question 6
What is the ideal What is the ideal 0.5 to 3.0 0.5 to 3.0 μμm (microns)m (microns)thickness of the fluid thickness of the fluid film between the film between the Primary Ring andPrimary Ring andPrimary Ring and Primary Ring and Mating Ring?Mating Ring?
![Page 85: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/85.jpg)
Question 7Question 7
Name the seal formed Name the seal formed The Primary SealThe Primary Sealat the contact area at the contact area between the Primary between the Primary Ring and the MatingRing and the MatingRing and the Mating Ring and the Mating Ring?Ring?
![Page 86: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/86.jpg)
Question 8Question 8
What term do we use to What term do we use to The Secondary SealThe Secondary Sealdescribe the component describe the component that seals the Primary that seals the Primary Ring to the shaft orRing to the shaft or
OO--ringring
PTFE Sealing RingPTFE Sealing Ring
B llB llRing to the shaft or Ring to the shaft or housing, but allows housing, but allows axial movement?axial movement?
BellowsBellows
![Page 87: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/87.jpg)
Question 9Question 9
What is the purpose of What is the purpose of To seal the Mating Ring To seal the Mating Ring the Tertiary Seal?the Tertiary Seal? into its housinginto its housing
On some designs, it is On some designs, it is also required to preventalso required to preventalso required to prevent also required to prevent the Mating Ring from the Mating Ring from rotatingrotatinggg
![Page 88: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/88.jpg)
Mechanical SealMechanical SealMechanical Seal Mechanical Seal TheoryTheory
Secondary SealSecondary Seal
© 2003 John Crane EAA
![Page 89: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/89.jpg)
Secondary SealSecondary Seal
![Page 90: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/90.jpg)
Secondary SealSecondary Seal
Three basic formsThree basic formsOO--ringsrings
Two groupsTwo groupsPusherPusherOO ringsrings
PTFE sealing ringsPTFE sealing ringsWedgesWedges
PusherPusherSliding oSliding o--ringsringsPTFE sealing ringsPTFE sealing rings
ChevronsChevrons‘C’ rings‘C’ ringsSleeved oSleeved o--ringsrings
g gg gNonNon--pusherpusher
BellowsBellowsgg
BellowsBellowsElastomerElastomerM t lM t lMetalMetal
formedformededge weldededge welded
PTFEPTFE
![Page 91: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/91.jpg)
Secondary Seal: PusherSecondary Seal: Pusher
Primary ring moves forward to take up wearPrimary ring moves forward to take up wearOO--ring moves forward with the primary ringring moves forward with the primary ringOO ring moves forward with the primary ringring moves forward with the primary ring
Pushed by the hydraulic and spring pressuresPushed by the hydraulic and spring pressures
![Page 92: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/92.jpg)
Secondary Seal: PusherSecondary Seal: Pusher
Positive drivePositive driveCompact multiple springsCompact multiple springs Optimised cooling flowOptimised cooling flow
Optimised primary ring designOptimised primary ring design
Typical pusher seal Typical pusher seal -- low emission dutieslow emission duties
![Page 93: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/93.jpg)
Pusher Seal: HangPusher Seal: Hang--upup
An An externalexternalexternal external quench quench will will prevent prevent hanghang--upup
Product leakage solidifies / crystallises / polymerisesProduct leakage solidifies / crystallises / polymerisesProduct leakage solidifies / crystallises / polymerisesProduct leakage solidifies / crystallises / polymerisesPrevents oPrevents o--ring pushing forward ring pushing forward -- leakage increasesleakage increases
![Page 94: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/94.jpg)
Pusher Seal: HangPusher Seal: Hang--upup
Or, ensure Or, ensure minimum minimum
clearance hereclearance here
Excessive pressure and / or heat:Excessive pressure and / or heat:Excessive pressure and / or heat:Excessive pressure and / or heat:permanent set or extrusionpermanent set or extrusion
![Page 95: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/95.jpg)
Secondary Seal: OSecondary Seal: O--RingRing
![Page 96: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/96.jpg)
Secondary Seal: OSecondary Seal: O--RingRing
Type 48LP Cartridge SealType 48LP Cartridge Seal
![Page 97: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/97.jpg)
Type 8B1 OType 8B1 O--Ring Pusher SealRing Pusher Seal
![Page 98: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/98.jpg)
Secondary Seal: OSecondary Seal: O--RingsRings
MaterialTypical Trade/
ISO/DIN/Minimum
temperatureMaximum
temperature CommentsMaterial ISO/DIN/Common names
temperature in seals
temperature in seals
Comments
Medium Nitrile NBRBuna N -40°C 100°C General purpose material.
Up to 120°C in hydrocarbons
CR Ideal for refrigeration dutiesChloroprene CRNeoprene -40°C 100°C Ideal for refrigeration duties.
Some specialist applications.
Ethylene Propylene EP; EPR; EPDMNordel™ -40°C 135°C Ideal for water up to 150°C.
Avoid oil/hydrocarbons.
FPM Maximum 135°C in waterFluorocarbon* FPMViton A™ -30°C 200°C Maximum 135 C in water.
Hardens in high temp steam.
Perfluoroelastomer* Isolast HT™ 20°C 315°C Wide range of chemical
Perfluoroelastomer* (Low temp. grades)
FFKM; Isolast™Kalrez™ -20°C 215°C Wide range of chemical
compatibility.
Perfluoroelastomer (High temp. grades)
Isolast HTKalrez™ -20°C 315°C Wide range of chemical
compatibility.
* Note Health and Safety warning* Note Health and Safety warning Note Health and Safety warning Note Health and Safety warning
![Page 99: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/99.jpg)
Secondary Seal: OSecondary Seal: O--ringsrings
FluorocarbonFluorocarbon
** > 275> 275°°C C -- Hydrogen Fluoride gas is a possibilityHydrogen Fluoride gas is a possibility> 316> 316°°C C -- Hydrogen Fluoride gas is a certaintyHydrogen Fluoride gas is a certainty
Open system Open system -- Hydrogen Fluoride vapourHydrogen Fluoride vapourClosed system (e.g., oClosed system (e.g., o--ring groove) condenses to ring groove) condenses to form liquidform liquid Hydrofluoric AcidHydrofluoric Acidform liquid form liquid Hydrofluoric AcidHydrofluoric Acid
Wear Neoprene or PVC glovesWear Neoprene or PVC glovesProtect eyesProtect eyesWash parts in Calcium Hydroxide solutionWash parts in Calcium Hydroxide solution
![Page 100: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/100.jpg)
Secondary Seal: OSecondary Seal: O--ringsrings
Perfluoroelastomer
* > 400°C - Hydrogen Fluoride gas is likely
Open system - Hydrogen Fluoride vapourp y y g pClosed system (e.g., o-ring groove) condenses to
form liquid Hydrofluoric Acid
Wear Neoprene or PVC glovesProtect eyesWash parts in Calcium Hydroxide solution
![Page 101: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/101.jpg)
Stainless Steel Colour ChartStainless Steel Colour Chart
Straw yellowStraw yellow 370 370 –– 425425°°CC
BrownBrown 480 480 –– 540540°°CC
BlueBlue 600600°°CC
BlackBlack 650650°°CC
ALLALL of these are of these are above the danger levelabove the danger level forforFluorocarbon and Perfluoroelastomer materialsFluorocarbon and Perfluoroelastomer materials
![Page 102: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/102.jpg)
Technical ComparisonsTechnical Comparisons
Compression Set after 70 hours at temperatureCompression Set after 70 hours at temperature
8080
9090
Compression Set after 70 hours at temperatureCompression Set after 70 hours at temperature
5050
6060
7070
8080
Kalrez 4079Kalrez 4079CompressionCompression
setset%%
2020
3030
4040 Chemraz 505Chemraz 505
Isolast 9503Isolast 9503
%%
00
1010
204204 218218 232232 246246 260260 °°CC..
400400 425425 450450 475475 500500 °°FF
TemperatureTemperature
400400 425425 450450 475475 500500 FF
![Page 103: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/103.jpg)
Chemical ResistanceChemical Resistance
350350
250250
300300
350350
150150
200200
250250Kalrez 4079Kalrez 4079Kalrez 1050LFKalrez 1050LFKalrez 2035Kalrez 2035
5050
100100
150150Isolast 9503Isolast 9503
00GeneralGeneralChemicalChemical
StrongStrongAcidsAcids
Amines,Amines,AmmoniaAmmonia
Steam,Steam,Hot WaterHot Water
EthyleneEthyleneOxideOxide
PropylenePropyleneOxideOxide
![Page 104: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/104.jpg)
Thermal ExpansionThermal Expansion
0.060.06
m/m
m)
m/m
m)
0.040.04
0.050.05
engt
h (m
men
gth
(mm
0.020.02
0.030.03IsolastIsolastKalrez*Kalrez*
ange
in L
ean
ge in
Le
00
0.010.01
Line
ar C
haLi
near
Cha
3838 9393 150150 204204 240240 260260
Temperature Temperature °°CC
*DuPont registered trademark*DuPont registered trademark
![Page 105: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/105.jpg)
Secondary Seal: WedgeSecondary Seal: Wedge
![Page 106: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/106.jpg)
Secondary Seal: WedgeSecondary Seal: Wedge
![Page 107: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/107.jpg)
PTFE Wedge Seal PTFE Wedge Seal –– Type 109Type 109
![Page 108: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/108.jpg)
Type 109B Wedge Pusher SealType 109B Wedge Pusher Seal
![Page 109: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/109.jpg)
Secondary Seal: ChevronsSecondary Seal: Chevrons
![Page 110: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/110.jpg)
Secondary Seal: Sleeved OSecondary Seal: Sleeved O--RingRing
![Page 111: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/111.jpg)
Secondary Seal: CSecondary Seal: C--RingRing
![Page 112: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/112.jpg)
Secondary Seal: PTFESecondary Seal: PTFE
Material
Minimum temperature
Maximum temperature
in seals in seals
Pure PTFE -40°C 230°C
Glass Filled PTFE 100°C 280°CGlass Filled PTFE -100°C 280°C
Exfoliated Graphite -40°C 500°C
PTFE Sleeved Fluorocarbon -20°C 200°CPTFE Sleeved Fluorocarbon 20 C 200 C
FEP Coated Fluorocarbon -20°C 150°C
Spring Energised Pure PTFE Envelope -20°C 200°CSpring Energised Pure PTFE Envelope 20 C 200 C
Spring Energised Glass Filled PTFE Envelope (Higher pressures) -20°C 200°C
![Page 113: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/113.jpg)
Secondary Seal: PusherSecondary Seal: PusherAdvantagesAdvantages
sudden failure very unlikelysudden failure very unlikely
higher pressure capability higher pressure capability –– Primary Ring not subject to Primary Ring not subject to external stressesexternal stresses
wide choice of materials for all componentswide choice of materials for all components
field repairablefield repairable
DisadvantagesDisadvantages
hanghang--up (not likely where oup (not likely where o--ring is well isolated)ring is well isolated)hanghang up (not likely where oup (not likely where o ring is well isolated)ring is well isolated)
permanent set / pressure problems (cause hangpermanent set / pressure problems (cause hang--up)up)
excellent shaft surface finish requiredexcellent shaft surface finish requiredexcellent shaft surface finish requiredexcellent shaft surface finish required
maximum temperature ~260maximum temperature ~260°°CC
![Page 114: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/114.jpg)
Secondary Seal: NonSecondary Seal: Non--PusherPusherNo contact hereNo contact here
Elastomer Bellows grips shaft tightlyElastomer Bellows grips shaft tightly
![Page 115: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/115.jpg)
Secondary Seal: NonSecondary Seal: Non--PusherPusher
Bellows flexes to take up wear, misalignment and axial playBellows flexes to take up wear, misalignment and axial playFine machined shaft surface requiredFine machined shaft surface requiredFine machined shaft surface requiredFine machined shaft surface required
Do not use “good” lubricant Do not use “good” lubricant -- never use silicon greasenever use silicon grease
![Page 116: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/116.jpg)
Elastomer Bellows SealElastomer Bellows Seal
![Page 117: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/117.jpg)
Elastomer Bellows SealsElastomer Bellows Seals
![Page 118: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/118.jpg)
HandsHands--on Exerciseon Exercise
Assemble a Type 2 Elastomer Bellows SealAssemble a Type 2 Elastomer Bellows SealAssemble a Type 2 Elastomer Bellows SealAssemble a Type 2 Elastomer Bellows Seal
..
![Page 119: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/119.jpg)
Elastomer Bellows SealElastomer Bellows Seal
![Page 120: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/120.jpg)
TwoTwo--Ply Rolled Metal BellowsPly Rolled Metal Bellows
![Page 121: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/121.jpg)
Rolled Twin Ply BellowsRolled Twin Ply Bellows
Twin ply tube formed into bellowsTwin ply tube formed into bellowsp yp y
![Page 122: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/122.jpg)
Additional benefits of SaflexAdditional benefits of Saflex
Higher pressuresHigher pressures
up to 30 bar gup to 30 bar g
Open convolutionsOpen convolutionspp
better on solids, food & pharmaceuticalsbetter on solids, food & pharmaceuticals
Higher torsional strengthHigher torsional strength
Ideal for specialsIdeal for specialsd a o sp a sd a o sp a s
minimal toolingminimal tooling
Any size up to 18” (or possibly more)Any size up to 18” (or possibly more)
![Page 123: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/123.jpg)
Technical details Technical details -- GL1BGL1B
DIN 24960 LDIN 24960 L1K1K
ANSIANSI
metric / inchmetric / inchmetric / inchmetric / inch
230 psi (16 bar)230 psi (16 bar)
up to 480up to 480°°F (250F (250°°C)C)
5/8” to 4”5/8” to 4”
up to 4500 rpmup to 4500 rpmup to 4500 rpmup to 4500 rpm
![Page 124: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/124.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
![Page 125: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/125.jpg)
Bellows DesignBellows DesignThe inside 45The inside 45°° Tilt Angle Tilt Angle developed for the NASA developed for the NASA space program.space program.
Drastically reduces the Drastically reduces the t t th ld dt t th ld dstresses at the weld and stresses at the weld and
heat affected zoneheat affected zone
This has been proven onThis has been proven onThis has been proven on This has been proven on test with fatigue failures test with fatigue failures
occurring away from occurring away from ldldweldweld
![Page 126: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/126.jpg)
Bellows DesignBellows Design
Why is the 45Why is the 45°° angle at the inside edge only?angle at the inside edge only?
The seals a e designed fo e te nal p ess eThe seals a e designed fo e te nal p ess eThe seals are designed for external pressure.The seals are designed for external pressure.
The outside weld is not so critical The outside weld is not so critical -- the pressure the pressure forces the plates together on the outside andforces the plates together on the outside andforces the plates together on the outside and forces the plates together on the outside and
apart on the insideapart on the inside
![Page 127: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/127.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Low Temperature SealsLow Temperature Seals
Type 680 Type 680 -- Alloy 20 BellowsAlloy 20 Bellows
Type 670 Type 670 -- Hastelloy CHastelloy C--276 Bellows276 Bellows
Type 675 Type 675 -- Titanium BellowsTitanium Bellows
Type 676Type 676 -- AM 350 BellowsAM 350 BellowsType 676 Type 676 AM 350 BellowsAM 350 Bellows
![Page 128: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/128.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Type 680: Alloy 20 Type 680: Alloy 20 -- 8 convolutions8 convolutions
Temperature:Temperature: --75ºC to 200ºC75ºC to 200ºCPressure:Pressure: vacuum to 20 bar gvacuum to 20 bar gSpeed:Speed: to 25 m/sto 25 m/s
Size RangeSize Range3/4” to 3.5/8”3/4” to 3.5/8”
18 mm to 100 mm18 mm to 100 mm Speed:Speed: to 25 m/sto 25 m/s18 mm to 100 mm18 mm to 100 mm
![Page 129: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/129.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Type 670: Alloy CType 670: Alloy C--276 276 -- 12 convolutions12 convolutions
Size RangeSize Range3/4” to 7”3/4” to 7”
18 mm to 150 mm18 mm to 150 mm
Temperature:Temperature: --75ºC to 200ºC75ºC to 200ºCPressure:Pressure: vacuum to 20 bar gvacuum to 20 bar gSpeed:Speed: to 25 m/sto 25 m/s18 mm to 150 mm18 mm to 150 mm Speed:Speed: to 25 m/sto 25 m/s
![Page 130: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/130.jpg)
Type 670 Welded Bellows SealType 670 Welded Bellows Seal
![Page 131: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/131.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
High Temperature SealsHigh Temperature Seals
Type 609 Type 609 -- Rotating Narrow Cross SectionRotating Narrow Cross Section
Type 606Type 606 -- Rotating Seal with Drive LugsRotating Seal with Drive LugsType 606 Type 606 Rotating Seal with Drive LugsRotating Seal with Drive Lugs
Type 604 Type 604 –– Stationary SealStationary Seal
![Page 132: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/132.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Type 609Type 609
Size RangeSize Range1” to 4”1” to 4”
25 mm to 100 mm25 mm to 100 mm
Temperature:Temperature: --75ºC to 425ºC75ºC to 425ºCPressure:Pressure: vacuum to 20 bar gvacuum to 20 bar g
(up to 65 bar g with double(up to 65 bar g with double--ply)ply)25 mm to 100 mm25 mm to 100 mm ( p g( p g p y)p y)
Speed:Speed: to 25 m/sto 25 m/s
![Page 133: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/133.jpg)
Type 609 Edge Welded BellowsType 609 Edge Welded Bellows
![Page 134: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/134.jpg)
DoubleDouble--Ply Welded BellowsPly Welded Bellows
![Page 135: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/135.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Type 606Type 606
Size RangeSize Range3/4” to 3.3/4”3/4” to 3.3/4”
19 mm to 95 mm19 mm to 95 mm
Temperature:Temperature: --75ºC to 425ºC75ºC to 425ºCPressure:Pressure: vacuum to 20 bar gvacuum to 20 bar g
(up to 65 bar g with double(up to 65 bar g with double--ply)ply)19 mm to 95 mm19 mm to 95 mm ( p g( p g p y)p y)
Speed:Speed: to 25 m/sto 25 m/s
![Page 136: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/136.jpg)
Type 606 Edge Welded BellowsType 606 Edge Welded Bellows
![Page 137: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/137.jpg)
Rotating High Temperature SealRotating High Temperature Seal
![Page 138: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/138.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Type 604Type 604
Size RangeSize Range3/4” to 4.5/8”3/4” to 4.5/8”
and 5 3/8”and 5 3/8”
Temperature:Temperature: --75ºC to 425ºC75ºC to 425ºCPressure:Pressure: vacuum to 20 bar gvacuum to 20 bar g
(up to 65 bar g with double(up to 65 bar g with double--ply)ply)and 5.3/8and 5.3/8 ( p g( p g p y)p y)
Speed:Speed: to 50 m/sto 50 m/s
![Page 139: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/139.jpg)
Type 604 Seal HeadType 604 Seal Head
![Page 140: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/140.jpg)
Edge Welded Metal BellowsEdge Welded Metal Bellows
Steam quench Steam quench first cleans bellows,first cleans bellows, then running faces,then running faces, then back to drainthen back to drain
Type 604 CartridgeType 604 Cartridge
![Page 141: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/141.jpg)
Secondary Seal: NonSecondary Seal: Non--PusherPusher
SummarySummary
No movement hereNo movement hereNo contact hereNo contact here
Bellows expands to take up wearBellows expands to take up wearNo contact hereNo contact here
![Page 142: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/142.jpg)
Secondary Seal: Metal BellowsSecondary Seal: Metal Bellows
Bellows MaterialsBellows MaterialsI l XI l X 750 d 718750 d 718Inconel XInconel X--750 and 718750 and 718Alloy CAlloy C--276 (e.g., Hastelloy C)276 (e.g., Hastelloy C)AM350 Stainless SteelAM350 Stainless SteelAM350 Stainless SteelAM350 Stainless SteelAlloy 20Alloy 20TitaniumTitaniumTitaniumTitanium
Shaft Seal MaterialsShaft Seal Materials
OO--rings rings -- full range, details as beforefull range, details as beforeExfoliated GraphiteExfoliated Graphite
~500~500°°CC
![Page 143: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/143.jpg)
Secondary Seal: Metal BellowsSecondary Seal: Metal Bellows
AdvantagesAdvantagestemperatures to 425temperatures to 425°°C (or more)C (or more)temperatures to 425temperatures to 425 C (or more)C (or more)no hangno hang--upupnonnon--cloggingclogginghygienichygienicfine machined shaft surface acceptablefine machined shaft surface acceptableelastomer bellows are rugged yet low costelastomer bellows are rugged yet low costelastomer bellows are rugged yet low costelastomer bellows are rugged yet low cost
DisadvantagesDisadvantagessudden failure possible, though unlikelysudden failure possible, though unlikely
(“flashing” or mis(“flashing” or mis--alignment)alignment)
not field repairablenot field repairablenot field repairablenot field repairablemaximum pressure 35 bar g maximum pressure 35 bar g (2(2--ply to 65 bar g)ply to 65 bar g)
![Page 144: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/144.jpg)
Secondary Seal: PTFE BellowsSecondary Seal: PTFE Bellows
![Page 145: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/145.jpg)
Secondary Seal: PTFE BellowsSecondary Seal: PTFE Bellows
![Page 146: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/146.jpg)
Secondary Seal: PTFE BellowsSecondary Seal: PTFE Bellows
Type 10TType 10TType 10TType 10T
Type 10RType 10R
![Page 147: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/147.jpg)
Secondary Seal: LeadSecondary Seal: Lead--in in
Seal Type (Example Only) Seal Size Y mm
Unbalanced Pusher Seals Up to 65 mm 2.5 mm
Unbalanced Pusher Seals Above 65 mm 4.0 mm
Elastomer Bellows Up to 26 mm 5.0 mm
Elastomer Bellows 26 mm — 60 mm 6.5 mm
Elastomer Bellows Above 60 mm 8.0 mm
For “Y” dimension see individual seal fitting instructionsFor “Y” dimension see individual seal fitting instructions
![Page 148: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/148.jpg)
S lf AS lf ASelf AssessmentSelf Assessment
Questions / AnswersQuestions / Answers
© 2003 John Crane EAA
![Page 149: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/149.jpg)
Question 1Question 1
Name the devices used Name the devices used OO--ringsringsfor Secondary Sealingfor Secondary Sealing PTFE Sealing RingsPTFE Sealing Rings
WedgesWedges
ChevronsChevrons
OthersOthers
BellowsBellowsBellowsBellowsElastomerElastomer
MetalMetalMetalMetal
PTFEPTFE
Packing RingsPacking Ringsg gg gExfoliated graphiteExfoliated graphite
![Page 150: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/150.jpg)
Question 2Question 2
OO--rings are often used rings are often used Marginal flexibilityMarginal flexibilityas Secondary Seals. as Secondary Seals. What, if any, are their What, if any, are their drawbacks?drawbacks?
ExtrusionExtrusion
HangHang--upupdrawbacks?drawbacks?
Permanent setPermanent set
Temperature limitsTemperature limitsHF acid possibleHF acid possible
![Page 151: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/151.jpg)
Question 3Question 3
Using a Bellows type Using a Bellows type The bellows expands or The bellows expands or Secondary Seal, Secondary Seal, describe how the describe how the component adjusts andcomponent adjusts and
flexesflexes
There is no relative There is no relative movement on themovement on thecomponent adjusts and component adjusts and
compensates for compensates for primary ring wear or primary ring wear or
movement on the movement on the shaft/sleeve.shaft/sleeve.
movement.movement.
![Page 152: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/152.jpg)
Question 4Question 4
With a Wedge Ring With a Wedge Ring d i f l thd i f l th
TrueTruedesign of seal, the design of seal, the Primary Ring rocks on Primary Ring rocks on the nose of the wedge the nose of the wedge ggto take up any to take up any misalignment.misalignment.
True / FalseTrue / False
![Page 153: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/153.jpg)
Mechanical SealMechanical SealMechanical Seal Mechanical Seal TheoryTheory
Tertiary Seal / Mating Tertiary Seal / Mating RingsRings
© 2003 John Crane EAA
![Page 154: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/154.jpg)
Basic Mechanical SealBasic Mechanical Seal
238238238
Secondary SealSecondary SealPrimary SealPrimary Seal
Tertiary SealTertiary Seal
![Page 155: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/155.jpg)
Tertiary SealTertiary SealFour basic typesFour basic types
OO--ringsringsOO ringsringselastomerselastomers
Sealing Rings (square / rectangular section)Sealing Rings (square / rectangular section)g g ( q / g )g g ( q / g )PTFEPTFEgraphitegraphite
Cup RingsCup Ringselastomerselastomers
Gaskets or Flat JointsGaskets or Flat JointsPTFEPTFE
d fibd fibcompressed fibre.compressed fibre.
![Page 156: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/156.jpg)
Tertiary SealTertiary Seal
P t l k d ti iP t l k d ti iPrevents leakage round mating ringPrevents leakage round mating ring
Sometimes also prevents rotationSometimes also prevents rotation
![Page 157: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/157.jpg)
Tertiary Seal: OTertiary Seal: O--ringring
![Page 158: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/158.jpg)
Tertiary Seal: OTertiary Seal: O--ringring
![Page 159: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/159.jpg)
Tertiary Seal: OTertiary Seal: O--ringring
![Page 160: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/160.jpg)
Tertiary Seal: OTertiary Seal: O--ringring
![Page 161: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/161.jpg)
Tertiary Seal: OTertiary Seal: O--ringring
![Page 162: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/162.jpg)
Tertiary Seal: Rectangular RingTertiary Seal: Rectangular Ring
![Page 163: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/163.jpg)
Tertiary Seal: Rectangular RingTertiary Seal: Rectangular Ring
![Page 164: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/164.jpg)
Tertiary Seal: Rectangular RingTertiary Seal: Rectangular Ring
PTFE or GraphitePTFE or Graphite
![Page 165: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/165.jpg)
Tertiary Seal: Cup RubberTertiary Seal: Cup Rubber
![Page 166: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/166.jpg)
Tertiary Seal: GasketTertiary Seal: Gasket
![Page 167: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/167.jpg)
Mating RingsMating Rings
A / AGA / AG
P / PG / PPP / PG / PP
![Page 168: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/168.jpg)
Mating RingsMating Rings
BOBOBOBO
BP / 248XBP / 248X
![Page 169: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/169.jpg)
Mating RingsMating Rings
N / NGN / NG
W / WGW / WG
WMWM
![Page 170: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/170.jpg)
Mating RingsMating Rings
V / VMV / VM
U / UMU / UM
![Page 171: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/171.jpg)
Special Mating RingsSpecial Mating RingsCECE
SCSC
BCBC
BDBD
![Page 172: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/172.jpg)
S lf AS lf ASelf AssessmentSelf Assessment
Questions / AnswersQuestions / Answers
© 2003 John Crane EAA
![Page 173: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/173.jpg)
Question 1Question 1
Describe the basic Describe the basic To prevent leakage To prevent leakage purpose of the ‘Tertiary’ purpose of the ‘Tertiary’ sealseal
round the mating ringround the mating ring
Also in some Also in some applicationsapplicationsapplicationsapplications
Prevent rotation of Prevent rotation of stationary mating ringstationary mating ringy g gy g g
Cushion mating ring Cushion mating ring from distortionfrom distortion
![Page 174: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/174.jpg)
Question 2Question 2
Name the forms of Name the forms of ‘T ti ’ li‘T ti ’ li
OO--ringsrings‘Tertiary’ sealing ‘Tertiary’ sealing components?components?
elastomerselastomersSeat Rings Seat Rings (square or (square or rectangular section)rectangular section)g )g )
PTFEPTFEgraphitegraphite
C RiC RiCup RingsCup Ringselastomerselastomers
Gaskets or Flat JointsGaskets or Flat JointsGaskets or Flat JointsGaskets or Flat JointsPTFEPTFEcompressed fibre.compressed fibre.
![Page 175: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/175.jpg)
Question 3Question 3
Explain why the oExplain why the o--ring ring If mating ring is made If mating ring is made groove is sometimes groove is sometimes machined into the machined into the mating ring housingmating ring housing
from hard materials from hard materials such as tungsten such as tungsten carbide or siliconcarbide or siliconmating ring housing mating ring housing
rather than the mating rather than the mating ring itself.ring itself.
carbide or silicon carbide or silicon carbide. Easier to carbide. Easier to machine accurate machine accurate groove into stainless groove into stainless steel. steel.
![Page 176: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/176.jpg)
Question 4Question 4
What item is essential What item is essential i th ti ii th ti i
AntiAnti--rotation pinrotation pinin the mating ring in the mating ring housing when using housing when using PTFE or exfoliated PTFE or exfoliated graphite tertiary seals?graphite tertiary seals?
![Page 177: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/177.jpg)
Question 5Question 5
To install a PTFE To install a PTFE t ti l h ldt ti l h ld
First install it onto the First install it onto the ti i th l itti i th l ittertiary seal, should you tertiary seal, should you
heat it up to soften it, heat it up to soften it, or cool it down to shrink or cool it down to shrink
mating ring, then cool it mating ring, then cool it down (cold running down (cold running water tap or place water tap or place
it?it?p pp p
refrigerator) to ease refrigerator) to ease installation into the installation into the mating ring housingmating ring housingmating ring housing.mating ring housing.
![Page 178: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/178.jpg)
HandsHands--on Exerciseon Exercise
Fit a Type 2 Elastomer Bellows SealFit a Type 2 Elastomer Bellows SealFit a Type 2 Elastomer Bellows SealFit a Type 2 Elastomer Bellows Seal
![Page 179: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/179.jpg)
Fitting a John CraneFitting a John CraneType 2Type 2Type 2Type 2
Elastomer Bellows SealElastomer Bellows Seal
![Page 180: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/180.jpg)
Type 2 Elastomer Bellows SealType 2 Elastomer Bellows Seal'X''X'L3L3
GasketGasket
22 1133
L3L3
= Scribed datum lines= Scribed datum lines
![Page 181: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/181.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)
1 Scribe first datum line (1) on shaft.
![Page 182: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/182.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)
2 Remove shaft from seal chamber.
![Page 183: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/183.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘X’‘X’
Gasket
3 Measure dimension ‘X’
![Page 184: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/184.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘X’
(1)(2)
4 Scribe line (2) ‘X’ mm inboard of line (1)
![Page 185: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/185.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘X’
(1)(2)(3)
L3
5 Scribe line (3) L3 mm inboard of line (2),L3 is the working length of the seal unit (See Fitting Instructions).
![Page 186: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/186.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)(2)(3)
6 E t ithd ffi i tl t l h ft d6 Ensure setscrews are withdrawn sufficiently to clear shaft and slide abutment ring into position abutting line (3).
![Page 187: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/187.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)(2)(3)
7 Ti ht t d i ft l b i t lid7 Tighten setscrews and, using soft soap as a lubricant, slide seal unit along shaft until it touches abutment ring.
![Page 188: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/188.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)(2)(3)
8 Replace shaft / seal in seal chamber. Ensure Primary Ring and Mating Ring are perfectly clean and dry.
![Page 189: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/189.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)(2)(3)
9 Insert gland plate into seal chamber.
![Page 190: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/190.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)(2)(3)
L3
10 Insert and evenly tighten 4 bolts, gently compressing seal to its working length (L3).
![Page 191: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/191.jpg)
Fitting a Type 2Fitting a Type 2Elastomer Bellows SealElastomer Bellows Seal
![Page 192: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/192.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)
1 Lightly scribe first datum line (1) on shaft.
![Page 193: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/193.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(1)
2 Dismantle pump – remove seal chamber.
![Page 194: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/194.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘X’
GasketGasket
3 Fit Mating Ring into Gland Plate.Measure dimension ‘X’.
![Page 195: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/195.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘X’
(2)(1) (2)
4 Scribe line (2) ‘X’ mm outboard of line (1).
![Page 196: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/196.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘Z’‘Z’
Note this dimension from line (3) to Note this dimension from line (3) to end of shaft or a shaft step.end of shaft or a shaft step.
‘Z’‘Z’
‘X’
(2)(1)(3) (2)
L3
5 Scribe line (3) L3 mm inboard of line (2),L3 is the working length of the seal unit (See Fitting Instructions).
![Page 197: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/197.jpg)
Fitting a Type 2 Elastomer Bellows Seal
Lubricate shaft with suitable lubricantOn single-ended pumps, first slide gland plate onto shaft, taking care not to damage the mating ring
(2)
Suitable pushing sleeve
(1)(3) (2)
6 Pushing on the tail of the bellows, slide seal head into position, passed line (3). NB: Spring and Locating Ring removed.
![Page 198: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/198.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(2)(1)(3) (2)
7 Replace spring and spring locating ring.
![Page 199: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/199.jpg)
Fitting a Type 2 Elastomer Bellows Seal
‘Z’‘Z’
Check this dimension from line (3) Check this dimension from line (3) to end of shaft or a shaft step.to end of shaft or a shaft step.
‘Z’‘Z’
(2)(1)(3) (2)
8 Ensure setscrews are withdrawn sufficiently to clear shaft and slide abutment ring into position abutting line (3).
![Page 200: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/200.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(2)(1)(3) (2)
9 Check ring is square. Tighten setscrews. Refit seal chamber. Ensure lapped faces are perfectly clean & dry.
![Page 201: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/201.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(2)(1)(3) (2)
10 Insert gland plate into seal chamber.
![Page 202: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/202.jpg)
Fitting a Type 2 Elastomer Bellows Seal
(2)(1) (2)(3)
L3
11 Insert and evenly tighten 4 bolts, gently compressing seal to its working length (L3).
![Page 203: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/203.jpg)
Pump AssemblyPump AssemblyPump Assembly Pump Assembly ChecksChecks
Tolerances to give Tolerances to give extended seal lifeextended seal life
© 2003 John Crane EAA
![Page 204: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/204.jpg)
Pump Assembly ChecksPump Assembly Checks
Shaft/Sleeve Maximum Shaft/Sleeve Secondary Seal Diametral
Tolerance Ovality Surface Finish Description
PTFE Pusher Seals ±0.05 mm 0.025 mm 0.1-0.25 µm Ra Ground and polished free from any machining marks
Elastomer O-Ring Pusher Seals ±0.05 mm 0.05 mm 0.3-0.6 µm Ra Polished free from any
machining marks
Elastomer Bellows ±0.05 mm 0.10 mm 0.8-1.2 µm Ra Fine machined. High quality finish is undesirable
PTFE Bellows ±0.05 mm 0.05 mm 0.8-1.2 µm Ra Fine machined. High quality finish is undesirable
Metal Bellows ±0.05 mm 0.05 mm 1.2 µm Ra or better Fine machined or better
Cartridge Seals ±0.05 mm 0.05 mm 1.2 µm Ra or better Fine machined or better
![Page 205: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/205.jpg)
Pump Assembly ChecksPump Assembly Checks
Rotating assembly correctly balancedRotating assembly correctly balancedRotating assembly correctly balancedRotating assembly correctly balancedVDI 2060 and ISO 1940VDI 2060 and ISO 1940
![Page 206: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/206.jpg)
Pump Assembly ChecksPump Assembly Checks
Shaft should be straightShaft should be straightMaximum TIR 0 05 mmMaximum TIR 0 05 mmMaximum TIR 0.05 mmMaximum TIR 0.05 mm
![Page 207: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/207.jpg)
Pump Assembly ChecksPump Assembly Checks
Shaft run outShaft run out1450 0 08 TIR 2900 0 05 TIR1450 0 08 TIR 2900 0 05 TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR
![Page 208: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/208.jpg)
Pump Assembly ChecksPump Assembly Checks
Axial and radial bearing clearancesAxial and radial bearing clearances1450 0 08 TIR 2900 0 05 TIR1450 0 08 TIR 2900 0 05 TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR
![Page 209: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/209.jpg)
Pump Assembly ChecksPump Assembly Checks
![Page 210: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/210.jpg)
Pump Assembly ChecksPump Assembly Checks
As square as possibleAs square as possible1450 rpm 0 08 mm TIR; 2900 rpm 0 05 mm TIR1450 rpm 0 08 mm TIR; 2900 rpm 0 05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR
> 8,000,000 times a day> 8,000,000 times a day
![Page 211: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/211.jpg)
Pump Assembly ChecksPump Assembly Checks
Clearance in bore of stationary face = 0.4 to 0.5 mmClearance in bore of stationary face = 0.4 to 0.5 mmSt ffi B t i ithi 0 15 TIRSt ffi B t i ithi 0 15 TIRStuffing Box concentric within 0.15 mm TIRStuffing Box concentric within 0.15 mm TIR
![Page 212: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/212.jpg)
Pump Assembly ChecksPump Assembly Checks
Check seal area Check seal area andand coupling shaft endcoupling shaft end1450 pm 0 08 mm TIR 2900 pm 0 05 mm TIR1450 pm 0 08 mm TIR 2900 pm 0 05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR1450 rpm 0.08 mm TIR; 2900 rpm 0.05 mm TIR
![Page 213: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/213.jpg)
Pump Assembly ChecksPump Assembly Checks
Check coupling alignmentCheck coupling alignment accuratelyaccuratelyCheck coupling alignment Check coupling alignment accuratelyaccuratelyWhich method do Which method do youyou use?use?
![Page 214: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/214.jpg)
Pump Assembly ChecksPump Assembly Checks
Accurately align Accurately align pipe workpipe workpipe workpipe work
Pipe strain will Pipe strain will cause premature cause premature seal and bearing seal and bearing failurefailurefailurefailure
1 hour spent 1 hour spent ppaligning pipe work aligning pipe work = 1 year extra seal = 1 year extra seal lifliflife.life.
![Page 215: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/215.jpg)
Pump Assembly ChecksPump Assembly Checks
Attach piping to the correct connectionsAttach piping to the correct connections
![Page 216: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/216.jpg)
Pump Assembly ChecksPump Assembly Checks
Shaft surface must be in good condition:Shaft surface must be in good condition:gg
no pits, scratches or no pits, scratches or grubscrew marksgrubscrew marks
fine machined or better for nonfine machined or better for non--pusher sealspusher seals
d d li h d ith hi id d li h d ith hi iground and polished with no machiningground and polished with no machining
marks for pusher sealsmarks for pusher seals
No pipe strain.No pipe strain.
![Page 217: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/217.jpg)
HandsHands--on Exerciseon Exercise
A bl d Fit T 109 PTFE W d S lA bl d Fit T 109 PTFE W d S lAssemble and Fit a Type 109 PTFE Wedge SealAssemble and Fit a Type 109 PTFE Wedge Seal
![Page 218: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/218.jpg)
Fitting a Type 109Fitting a Type 109PTFE Wedge SealPTFE Wedge SealPTFE Wedge SealPTFE Wedge Seal
![Page 219: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/219.jpg)
Fitting a Type 109 Wedge Seal
(1)
1 Scribe first datum line (1) on shaft.
![Page 220: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/220.jpg)
Fitting a Type 109 Wedge Seal
(1)
2 Remove shaft from seal chamber.
![Page 221: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/221.jpg)
Fitting a Type 109 Wedge Seal
‘X’‘X’
Gasket
3 Measure dimension ‘X’.
![Page 222: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/222.jpg)
Fitting a Type 109 Wedge Seal
‘X’
(1)(2)
4 Scribe line (2) ‘X’ mm inboard of line (1).
![Page 223: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/223.jpg)
Fitting a Type 109 Wedge Seal
‘X’
(1)(2)(3)
L3
5 Scribe line (3) L3 mm inboard of line (2),L3 is the working length of the seal unit (see Fitting Instructions).
![Page 224: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/224.jpg)
Fitting a Type 109 Wedge Seal
(1)(2)(3)
6 Ensure setscrews are withdrawn sufficiently to clear shaft and slide seal into position abutting line (3).
![Page 225: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/225.jpg)
Fitting a Type 109 Wedge Seal
(1)(2)(3)
7 Tighten setscrews and replace shaft / seal in seal chamber. Ensure running faces are perfectly clean and dry.
![Page 226: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/226.jpg)
Fitting a Type 109 Wedge Seal
‘A’
(1)(2)(3)
8 Insert gland plate into seal chamber. Check gap ‘A’.
![Page 227: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/227.jpg)
Fitting a Type 109 Wedge Seal
(1)(2)(3)
L3
9 Insert and evenly tighten 4 bolts, gently compressing seal to its working length (L3).
![Page 228: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/228.jpg)
Holding Clips Holding Clips -- Wedge SealsWedge Seals
![Page 229: 3-Day Gen Open 112003 2a [Compatibility Mode]](https://reader033.vdocuments.net/reader033/viewer/2022042518/54a16c91ac7959b5708b4747/html5/thumbnails/229.jpg)
Holding Clips Holding Clips -- Wedge SealsWedge Seals