PUMP TYPE SERIES SLM AVP ACCORDING TO API 685 PRODUCT CATALOGUE Pumps with shaft sealing Chemical centrifugal pumps according to DIN EN 22858 E Multistage pumps E Horizontal and vertical propeller pumps E Bottom-flange propeller pumps E Submerged centrifugal pumps E Double-suction chemical pumps Production range agitators: E Agitator drives with magnet drive Production range valves: E Valves, T-pattern E Valves, Y-pattern E Gate valves, isomorphous construction series E Gate valves, wedge or wedge plates E Relief valves E Check valves E Sight glasses E Strainers E Filters E Bottom valves Production range pumps: Pumps with magnet drive E Chemical centrifugal pumps according to DIN EN 22858 E Centrifugal pumps according to ANSI B73.3 E Centrifugal pumps for refinery and petrochemical applications according to API 685 E Centrifugal pumps for high pressure applications E Centrifugal pumps for high temperature applications E Centrifugal pumps for liquid containing solids E Centrifugal pumps, self-priming E Multistage pumps E Side channel pumps, self-priming E Screw pumps E Submerged centrifugal pumps E Double-suction chemical pumps motralec . 4 rue Lavoisier . ZA Lavoisier . 95223 HERBLAY CEDEX. Tel. : 01.39.97.65.10 / Fax. : 01.39.97.68.48 Demande de prix / e-mail : [email protected] . Site Internet : www.motralec.com
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PUMP TYPE SERIES SLM AVP ACCORDING TO API 685 · SERVICE S E R V I C E KU-Logo für farbigen HG PUMP TYPE SERIES SLM AVP ACCORDING TO API 685 PRODUCT CATALOGUE Pumps with shaft sealing
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PUMP TYPE SERIES SLM AVPACCORDING TO API 685PRODUCT CATALOGUE
Pumps with shaft sealing
Chemical centrifugal pumps according to DIN EN 22858
E Multistage pumpsE Horizontal and vertical propeller pumpsE Bottom-flange propeller pumpsE Submerged centrifugal pumpsE Double-suction chemical pumps
Production rangeagitators:
E Agitator drives with magnet drive
Production rangevalves:
E Valves, T-patternE Valves, Y-patternE Gate valves, isomorphous
construction seriesE Gate valves, wedge or wedge platesE Relief valvesE Check valvesE Sight glassesE StrainersE FiltersE Bottom valves
Production rangepumps:
Pumps with magnet drive
E Chemical centrifugal pumps according to DIN EN 22858
E Centrifugal pumps according to ANSI B73.3
E Centrifugal pumps for refinery and petrochemical applications according to API 685
E Centrifugal pumps for high pressure applications
E Centrifugal pumps for high temperature applications
E Centrifugal pumps for liquid containing solids
E Centrifugal pumps, self-primingE Multistage pumpsE Side channel pumps, self-primingE Screw pumpsE Submerged centrifugal pumpsE Double-suction chemical pumps
motralec . 4 rue Lavoisier . ZA Lavoisier . 95223 HERBLAY CEDEX. Tel. : 01.39.97.65.10 / Fax. : 01.39.97.68.48
Demande de prix / e-mail : [email protected] . Site Internet : www.motralec.com
This pump for refineries and the petro-chemical industry is the consistent furtherdevelopment of the proven Klaus Unioncentrifugal pumps with magnet drive andwithoutshaftseal.
TheKlausUnionpumptypeseriesSLMAVPfulfils the high technical and economicdemandsthatrefineriesandthepetrochemi-cal industryimposetodayonpumpswithoutshaftseals.
Fromasafety-engineeringpointofview,theSLM AVP is an enhancement of the pumpswithmechanicalsealformerlyutilised,whicharedescribedintheAPI610standard.
Theconstructiontypewithoutshaftsealbutwithmagnetdriveguaranteesthatthepumpis absolutely leak free, in accordance withthe TA-Luft specification (German TechnicalInstructiononAirQualityControl),andmain-tenance-free in operation, compared to theversionwithmechanicalseal.
Thethrustandradialjournalbearingsareself-lubricatedandinthestandarddesignconsistsofpuresinteredsiliconcarbide(SSiC).Thejournalbearingcomponentsarefixedandsecuredinboththeaxialandradialdirections.Compensation for the different thermalexpansion coefficients of the metallic andceramiccomponents isensuredby thecon-structionaldesign.
The magnet drive is configured concentri-cally and transmits torque without slip viathe field of the permanent magnets. Thethermally stable samarium-cobalt material(Sm2Co17) withstands operating tempera-turesofupto400°C.Themagneticmaterialaluminium-nickel-cobalt (AlNiCo) is utilisedforhighertemperaturesofupto450°C.
Asecondpressurisedflushflow is takenoffat a high pressure location in the hydraulicsystemandfedtothemagnetdrive,whereitprovides for the necessary heat dissipation.Thepressurisedflushflowensures that thetemperature rise in the isolation shell areadoesnot lead toevaporationof thepumpedliquid(seeFig.2).
Thedesignofpumpcasinghasbeencalcula-tedwiththehelpofthefiniteelementmethod(FEM) for 50barmaximum internal pressu-reat120°Candanozzleloadcorrespondingto double the values specified in API 685.Thecorrosionallowanceof3mmstipulatedaccording to § 6.3.3 has been taken intoconsideration. The flange connections aredesigned according to ANSI/ASME B16.5,Class300.
The highest level of operational reliability throughout the process
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Klaus Union-Standard: Single isolation shell with leakage monitoring and drain at the in-termediate lantern. (API-§ 3.66)
The standard version of the SLM AVP pumpisequippedwithasingle isolationshell.Theintermediate lantern is equipped with alabyrinth system to the atmosphere,a leakage monitoring system and a drainconnection. A pressure gauge or a liquidsensor can be utilised as a leakagemonitor. The labyrinth seal upstream of theanti-friction bearings serves as a throttlingpoint in the event of isolation shell damageleading to product escaping into the inter-mediate lantern. The pressure rise or thepresence of liquid is detected by the moni-toringsystem.ThisdesigncorrespondstothesecondarycontrolsystemdescribedinAPI685(§3.66).
Driveunitwithsecondarycontrolsystem
Optional: Double isolation shell with pressure monitoring. (API-§ 3.64)
In this version, the pressure-containingsecond (outer) isolation shell serves assecondary containment and thus fulfils theAPI definition of the secondary containmentsystemaccordingto§3.64.Theouterisolationshellisarrangedconcen-tricallyaround the inner isolationshell.Thepressureismonitoredinthecavitybetweenthetwocontainmentshellsandisconfiguredwithapressurebelowatmosphereinthestateofthepumpasdelivered. It is thuspossible todetect isolation shell damage from outsideandfrominside.Intheeventofdamagefromoutside, the pressure monitor will indicateatmosphericpressure;whereasintheeventofdamagefrominside,thesystempressurewillbeindicated.
Doubleisolationshellassecondarycontainmentsystem
Outer magnet carrier protection (API-§ 9.1.3.5) and rubring zones (API-§ 9.1.3.3)
To protect the isolation shell, rubring zonesareprovidedonboththeoutermagnetcarrierandtheinnermagnetcarrier.Intheeventofadeflectionofthemagnetrotors,thiseffectivelyavoidscontactoftherotorswiththeisolationshelltoavoiddamagingtheshell.
Themountingzoneintheintermediatelanternensuresthattheoutermagnetcarrierissafelyguided during assembly and disassembly.Thispreventsaccidentaldamagetotheoutermagnet carrier.By virtue of this design, theoutermagnetcarriersheathingrequestedbyAPI685isnotrequired.