GARLOCK KLOZURE GPA Seal Catalog - Beacon Gasket

GPA SEAL CATALOGGARLOCK KLOZURE GPA Seal Catalog

GPA Seal Catalog1

B A C K G R O U N DAlumina ProcessingIn the alumina production process, the bauxite and hydrated alumina in suspension are pumped over long distances by very largeslurry pumps. Stuffing boxes are the most common type of barrierbetween the process and the atmosphere used on these pumpsand other rotating equipment such as mixers and agitators. Stuffingboxes require continuous water flushing for cooling and cleaning, avery expensive process which generates costs quite often overlooked in cost analysis; further the extraneous flush water must beremoved from the pumped media and environment if leaks occur.GPA seals do not require flushing, are environmentally friendly,and reduce operating costs.DescriptionPump CasingdcsealStuffing boxes have a limited life expectancy, experiencing frequentoutage and requiring continuous monitoring by maintenancepersonnel. Frequent leakage, splashing, and spilling of suspensionsgenerate local pollution which can sometimes cause serious damage to pump shafts and bearings leading to premature failures.GPA seals, after proper set up, can be operational without anymonitoring for months.Operating ParametersUnlike other mechanical seals, the GPA does not clog or wearquickly. GPA seals have acquired an unequaled reputation inalumina refineries throughout the world. The GPA key features area simple, sturdy, proven design and cost effectiveness.Temperature (Min/Max): 32-310ºF / 0-160ºCPressure: Up to 300 psi / 20 barShaft Size: 0.788" to 7.085" / 20 to 180 mmSolid Content: Up to 70 Oz / GAL or 500 gr/LShaft Speed: Up to 50 ft/sec or 15 m/secOther ApplicationsOther industries faced with similar problems related to pumpingabrasive, corrosive, clogging, or crystallizing fluids have successfully used GPA seals for both slurry and liquors. Applicationsinclude Phosphoric acid for fertilizers, Cellulose, Pulp and Paper,Calcium carbonate, Coal mining, Sugar refining, Limestone for cement manufacturing, and the mining and processing of Zinc, Lead,Nickel and Gold.GPA seals can be adapted to almost all commercially availablecentrifugal pumps, mixers, agitators, drilling heads and other similar equipment. Our engineering staff is able to direct all modifications required to the standard stuffing box, and the retrofitting ofequipment in the field.2GPA Seal CatalogegbaLocking nutSpring diaphram compressionadjusted by screwing the sleevealong the pump shaftGPA Seals: Simplicity and PrecisionThe GPA seal is basically comprised of two components: TheFixed Ring (a) inserted in a housing (c) integral with the pump body.The Rotating Seal Sleeve Assembly (RSSAI consisting of a rotatingring) (b) inserted in a housing (d). Special drive rings (g) force therotating housing to rotate integral to the seal sleeve (e). The springdiaphragm or membrane (f) connecting the rotating ring to thesleeve has three key functions: Acts as a static seal between the seal sleeve and the rotatinghousing Ensures consistent load between the fixed and rotating rings Aligns the housing to ensure that the rotation is perfectlyparallel to the shaft and perpendicular to the shaft axisAs shown on the diagram, there is adequate clearance betweenthe outside of the seal sleeve and the inside of the rotating housingto prevent any risks of clogging of the membrane and damage byloose crystals. A water flush port can be added on all seal types ifdesired.

M A T E R I A LS E L E C T I O NMaterialsDepending on the process and the fluid to be pumped, the GarlockKlozure engineering staff will assist you in selecting the best materials for the following key components:Figure 1ROTATING and FIXED RING INSERTS (seal faces): U5: Tungsten carbide with Cobalt U6: Tungsten carbide with Nickel U8: Silicon Carbide C4: Siliconized GraphiteThese inserts are thermally fit directly into the rings providing astrong mechanical bond between the housings and the insert, adefinite advantage in case of cavitation or temporaryoverheating.O-RINGS:The GPA was the first mechanical seal specifically designedto handle highly abrasive slurries. GPA seals are very forgivingbecause of their simple design. There are currently two optionsavailable: Threaded type, where the sleeve is threaded on one end,allowing the compression on the spring diaphragm to be adjustedprecisely by moving it along the mating thread on the shaft or shaftsleeve. The threaded type allows for some fine tuning in the field.(Figure 1)Cartridge type, which is preset at the factory and can beinstalled without further adjustment. It does not require specialmachining of the shaft or shaft sleeve for installation. The easeof installation of the cartridge type seal makes it ideal for the firsttime user. As your maintenance personnel become familiar with theoperation of the GPA seal, the threaded type should be considered.(Figure 2) B: Buna E: Ethylene polypropylene V: Viton N: NeopreneThese are the most common elastomers used on the GPA ; otherstatic seal material can be utilized upon request.MEMBRANE: N: Neoprene M5: PTFE coated P1: Therban (HNBR) E: Ethylene polypropyleneMembrane systems are constantly being developed and tested inour laboratory to optimize the sealing and loading characteristics ofthe GPA .SLEEVES: D: Carbon Steel E: Chrome Steel G: 316 L Stainless steel T: Cr-Ni-Mo-Cu steel for phosphoric serviceAny other machinable metallic materials are available upon request.COATINGS: W: Chromic oxide X: NickelAll metallic surfaces exposed to the media can be hard surfaced toprovide better abrasion resistance. A wide variety of coatings areavailable upon request.Figure 2GPA Seal Catalog3

S P E C I F I CA P P L I C A T I O N SGPA seals are used in the most demanding environments. A selection of specific applications is listed in the table below.ApplicationsALLUMINA REFINERIESBayer ProcessSlurry-LiquorParametersTemp.: up to 284ºF/140ºCP: up to 150psi/10 barGPA TypesGPA/GPACGPADUS U5 ENDWPump ManufacturersAllis ChalmersBharat PumpsCanada PumpsDenver SalaDresser Jeumont SchneiderDresser WorthingtonFraser ChalmersGIW- HazletonGoulds PumpsIngersoll Rand-KestnerKrogh Pump - KSN - LICARMorris - SchabaverSulzer - Weise - Warman Int'lAlumina liquorUp to 500g/1 Solid contentsUS U5 E M5 FWPhosphoric acidP205Gypsum and phosphateTemp.: up to 176ºF/80ºCP.: up to 87psi/6 barSolid contents: 300g/lGPA - GPACGPACPU8 U8 VM5TXDresser JSEnsivalPulp - LiquorsTemp.: up to 176ºF/80ºCP.: up to 87psi/6 barGPAU5 U5 ENDWSchabaverMoretCalcium carbonateRoom TemperatureP.: up to 87psi/6 barGPAU5 U5 E M5 FWDresser JSSala PumpsPulverized CoalP.: up to 87psi/6 bar AirN: 30rpmGPACPGPECHaslerWater and CoalP.: up to 87psi/6 barN: 180rpmGPA/GPACU5 U5 E M5 FWWarmanFapmoOre TreatmentAbrasive and corrosivesolutions (H2SO4)GPACPU8 U8 V M5 TXDresser JSSand/MudSilica SlurriesRoom TemperatureP.: up to 87psi/6 barSolid contents: 100 to 600 g/lGPAGPACU5 U5 ENDWEssa MicoSchabaverNeyrtecMoineau PCMLinatexSihiPainting - PigmentsRoom TempP.: up to 87psi/6 barU5 U8 E M5 GNetzschBornemannNatural Gas TreatmentRoom TempP.: up to 87psi/6 bar (sulfur)GPA/GPACU5 U5 ENDWU8 U8 E M5 GWSchabaverSihiSugar IndustryTemp.: up to 194ºF/90ºCP: up to 87psi/6 barSolid contents: up to 300g/lGPA/GPCA/GPACPU5 U5 E N GWSchabaverToyoIndustrial PowdersEnvironmental dry or humidP.: 43psi/3 barTemp.: less than 212ºF/100ºCGPACPU5 U5 E M5 GMixer Guedu4 GPA Seal Catalog

G P AT H R E A D E DT Y P EGPA Threaded Type — Style 03 Stationery RingL0 MinL2 MinPitchØA g6ØD6 holes ØE on ØF BCL3ØCØ B H8L1Style 03 is one of the most popular designs on the market. The fixed ringis installed on the drive side. The characteristic table below lists standardsizes. Special sizes are available upon 82.5.079-.1182-3Final sealing performance test at 85psi, 6 bar.Schabaver pump, Pechiney Aluminum, France.GPA Seal Catalog5

G P AT H R E A D E DT Y P EGPA Threaded Type — Style 13 Stationery RingL2 MinL0 MinPitchØA g6ØCØ B H8L1Style 13 available only in the threaded version is very easy to install. Thefixed ring is mounted on the impeller side. The characteristic table belowlists standard sizes. Special sizes are available upon 62.0982.5.079-.1182-3GPA threaded type installed on a KSB pump,alumina plant, Greece6L1In.GPA Seal Catalog

G P A CC A R T R I D G ET Y P EGPAC Cartridge Type — Style 03C Stationery RingL0 MinL2 Min6 holes ØE on ØF BCPitchØA g6ØCØ B H8ØDL3L1Style 03C is a cartridge seal with the fixed ring installed on the drive side.These seals are preset at the factory. The characteristic table below listsstandard sizes. Specific sizes are available upon 2.86622Installation of a GPAC 03C on a Warman pump,mud treatment plant, Belgium.GPA Seal Catalog7

G P A CC A R T R I D G ET Y P EGPAC Cartridge Type — Style 43C Stationery RingL0 MinL2 MinL1ØA g6ØCØ B H8ØDL3Style 43C is a cartridge seal with the fixed ring on the impeller side. Theseseals are preset at the factory. The characteristic table below lists standardsizes. Specific sizes are available upon .3158Worthington M pump on a high capacitydecanting unit, Alcan, Canada8L0In.GPA Seal Catalog

G P A C PP rotectedcartridgetypeGPACP Protected Cartridge Type — Style 03CP Stationery RingL0 MinL2 MinØA g6ØD6 holes ØE on ØF BCL3ØCØ B H8L1Style 03CP is a protected cartridge with the fixed ring installed on the drive side. Thisdesign is recommended for aggressive fluids; a lip seal is mounted in the fixed ring.Grease or flush water is used as barrier .661931.65442Jeumont Schneider pump used in themanufacturing of fertilizers. GPACP 03resistant to phosphoric acid, FranceGPA Seal Catalog9

G P A CP R O T E C tedC A R T R I D G ET Y P EGPAC Cartridge Type — Style 43CP Stationery RingL0 MinL2 MinL1ØA g6ØCØ B H8ØDL3Style 43CP has a protected cartridge with the fixed ring on the impeller side.This design prevents dry friction and leakage of corrosive fluids. A lip seal ismounted in the fixed ring. Grease or flush water is used as barrier 158Hasler blast furnaces, GPACP 43 equips thescrew-feeder conveyor systems handlinggranular coal at 85psi. Lorraine basin, France10L0In.GPA Seal Catalog

specialdesignsGPEC Rotating HousingStationaryHousingDrive RingsSpring MembraneOil SealBall BearingSeal SleeveShaftStationary InsertRotating InsertThe GPEC is a cartridge type seal which has a built in ball bearing system. This providesexcellent centering of the seal, since the bearing is very close to the friction surfaces.GPAD Double-SealRotating RingStationaryHousingDrive RingsSpring MembraneRotating HousingSpring MembraneStationery InsertSeal Sleeve ShaftMultistage pumping of alumina slurries,Ingersoll-Dresser and SIHI-Schabaverpumps, India.Rotating InsertThe GPAD is a double seal arrangement used on multistage pumping stations, allowing asmooth transfer of pressure between the pumps.GPA Seal Catalog11

specialdesignsChamfered Face GPA Rotating HousingStationaryHousingDrive RingsSpring MembraneSet ScrewShaft AdaptorSeal SleeveChamfered face GPA seal. Thisspecific design has reduced sealface contact area resulting inlower breakout torque. Popularin latex paint manufacturing.Operating conditions are 100ºF /40ºC, up to a 1000 rpm, pressure30psi / 2.5bar.ShaftChamfered Stationary InsertRotating InsertExternal GPAFrom DischargeRecircultingAdaptorPump face to beMachinedStationaryHousingRotating HousingSet ScrewSpring MembraneSeal SleeveDrive RingsShaftGPA cartridge type, thisspecific design can be mountedoutside of the pump body, inthis particular case, operating at200ºF / 95ºC, 1400 rpm, Suctionpressure 25 PSI / 1.8 bar,discharge pressure 90 PSI / 6bar. The seals replace thepacking rings withoutmodifications to the pump.Stationery InsertRotating InsertDouble bearing external set upon 10LR pumps, Aluminaprocessing, green liquor,Australia.12GPA Seal Catalog