Gefa Prospekt Armaturentechnik Teil 01 Klappen engl RZ · DIN EN 12266 P10 P11 P12 Leakage rate A Type K 19 DN 350 – DN 500 Technical data Wafer type butterfly valve for installation

VALVE TECHNOLOGYPRODUCT OVERVIEW

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CONTENTS

Valves

Ball valves

Gate

Non return valves

ll pressure and temperature specifications are maximum application limits, which are influenced by the interaction of all application factors. Therefore, without technical design and without our confirmation, the specifications are without commitment.

Butterfly valve resilient-seated | series K 2

Butterfly valve with inflatable seat ring | type KS9 | KS7 8

Butterfly valve centric | type KG 2 | KG 4 10

Butterfly valve PTFE-lined | series K 14

High performance butterfly valve double offset design | type HG 20

High performance butterfly valve triple offset | type HGT 26

Throttle and regulating valve type KGT 32

Actuation/automation for 90° valves 34

Ball valve 3-piece | series DG | full/reduced bore 36

Multiple way ball valve 3-piece | series DG 42

Ball valve 3-piece | series DG 1 | with orbital weld ends 46

Flanged ball valve 2-piece | type FG 48

Flanged ball valve 2-piece | type FG | PFA-lined 52

Knife gate valve series Domino 56

Non return valve series RF | short length 68

1Subject to technical modifications

CONTENTSGEFA VALVE TECHNOLOGY | PRODUCT OVERVIEW

AdvantagesCentricvalvediscwithfirm, clearance-freedisc/stemconnection

Veryservice-friendly:Veryquickchangeoftheseatring duetothetwo-piecebodydesign

Completebodyislinedwithelastomerwiththeseatringasamultifunctionalsealingelement

Canbeusedforalmostallmedia,fromusewithacidstothesensitivefoodandpharmaceuticalindustries

Controlandregulationofprocesseswithouthysteresis

CorrespondstothenormEN593

VDI 2440EPDM

BUTTERFLY VALVEResilient-seated|seriesK

BUTTERFLY VALVES

1 Automation · StandardmountingflangeaccordingtoENISO5211· Directactuatormountingwithoutinterruptionofthestem· Variableandexchangeableforanyactuatorsize· Actuatorprotectionagainstleakage

2 Two-piece body Standardface-to-facedimension,veryservicefriendly,simpleexchangeofinternalpartsonlypossiblebecause ofthetwo-piecebodydesign.

3 Bearing bush with O-ring seal

4 Primary sealing Integratedintheseatring,guaranteesthecavity-free andpressure-resistantsealingtotheoutside,additionallabyrinthlayout.

5 Seat ring Multifunctionalsealingelement,easytoreplace,maintenance-free,longservicelife,tightsealingintheseat,totheflangesandatthestempassage;securelockinginthedovetail,embeddedinthebodywithoutedgeprotrudingovertheflangearea.

6 Valve disc and stem One-piecedesign,absolutelyclearance-free,largefreecross-section,minimalpressureloss.

Efficientandsafeautomationwiththe interchangeableflangeGEFA-MULTITOP

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TECHNICAL FEATURESButterflyvalve|resilient-seated|seriesK

Type KG 9 DN50–DN300

Technical dataWafertypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.Two-piecebody,self-centring,one-piece discandstem,bubble-tightupto16bar,vacuum-tight.

Face-to-face dimensionDINEN558line20API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12LeakagerateA


Technical data LugtypebutterflyvalveforinstallationbetweenflangesEN1092,DN50-DN150:PN10/16,DN200-DN300:PN10,DN200-DN300:PN16,ASMEclass150. Two-piecebodywiththrea-dedcamsforafirmflangeconnectionfrombothsides. Thepipelinecanberemovedfromtheflangeononeside, vacuum-tight.


Type K 19 DN350–DN500

Technical dataWafertypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.Two-piecebody,self-centring,one-piecediscandstem,bubble-tightupto16bar,vacuum-tight.



Technical data LugtypebutterflyvalveforinstallationbetweenflangesEN1092, PN10,ASMEclass150. Two-piecebodywith threadedcamsforafirmflangeconnectionfrombothsides.One-piecediscandstem,bubble-tightupto 16barandvacuum-tight.Thepipelinecanberemovedfromtheflangeononeside.


THE TYPESButterflyvalve|resilient-seated|seriesK

BUTTERFLY VALVES


Technical data DoubleflangedbutterflyvalveforinstallationbetweenflangesEN1092,PN6/10.One-piecebodyindoubleflangedesign,suitablefordead-endservice.Conti-nuousvalvestem,internallyconnectedwiththevalvediscbydowelpins.Theconnectionisshieldedfromthemedium.Changeableseatringwithadditionalsteelsupportringasfirmrubbermetalconnectionincompliancewithasolid elastomerthicknessofapprox.15–17mm.



Technical data Wafertypebutterflyvalveforinstallationbetween flangesEN1092-1, PN6/10/16.One-piecebody.Continuousvalvestem, internallyconnectedwiththevalvediscbydowelpins. Theconnectionisshieldedfromthemedium.Change-ableseatringwithadditionalsteelsupportringasfirmrubber-metalconnectionincompliancewithasolid elastomerthicknessofapprox.15–17mm.



Technical data Wafertypebutterflyvalveforinstallationbetween flangesEN1092,PN10/16,ASMEclass150.Two-piecestainlesssteelbodywithcentringlugs.IncompliancewithalltheadvantagesofthebasicseriesKG9,thiscompletelystainlesssteelversionisofferedforallareas,whichalsodemand acorrosion-freeuseoftheexternalcomponents.This isthecaseinthefood/ beverageindustryandintheareaofpharmacy,aswellasinchemistryandincaseofseawaterapplications.


Type KSDN80–DN500SeatringinflatableTechnical dataWafertypebutterflyvalveorlugtypebutterflyvalveforinstallationbetweenflangesEN1092PN10/16orASMEclass150.Secureshut-offofsolidswithoutfrictionintheseat.DuetothepneumaticpressurisationoftheseatringinpositionCLOSED,thevalveswitcheswithoutfrictionandwithoutpreloadbetweenseatandvalvedisc.Signsofwearareavoidedinthisway.



1 Theactuatorremainsinstalledattheupperpartofthebody. 2 Afterlooseningthetwobodyscrews,thelowerpartofthebodyispulledoutdownwardstogetherwiththeinternalparts.3Simplypulltheseatringfromthevalvedisc. 4 Pullthenewseatringontothevalvedisc–thisisverysimple!5 Pressthelowerpartofthebodytogetherwiththeinternalpartsandtightenthetwobodyscrews.6 Finished!

Seatringchange

1 2 3 4 5 6

One-piecedisc/stemconnection–withoutclearanceandhysteresis,cavity-freeandcleanableinasterileway.Bacteriaformationduetocavitiesandallother disadvantagesofthe“plugged”stemconnectionscanbeexcluded.Thevalvediscisimplementedinasphericalformfortheprimarysealingofthestempassagethroughtheseatring.Thisensuresauniformcontactpressureofthevalvediscsealingsurfacetotheseatringandthusamoresecuresurfacesealing.Asecondsealingfunctionisachievedviatheadditionallabyrinthfunctionbetweenthevalvediscstemandtheseatring.

Stable,thick-walleddimensioningoftheseatringinthesealingareaontheinsideandtotheedges.Theedge-free,roundedpassagetothedovetailguide(clampingzonetotheflanges)ensuresasecurelockingwithhightearresistance.Highflowvelocities,crustformationsandabrasivemediaareperfectlyundercontrol.Noformationofbulgesontheinsidebecausetheseatringispulledoutwardsthroughtheflangeclampingintothedovetail.

Zug

Zug

DETAILED SOLUTIONSButterflyvalve|resilient-seated|seriesK

BUTTERFLY VALVES

Pressureandtemperaturerangediagram

Availablematerials

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0 50 100 150 200

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EPDMNBR

FPM

MVQ

PU

Druck/Temperatur-Diagramm

Temperature °C

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rControl range20°–60°openingangleVacuum-tightupto10 -2mbarValves from DN 200 Incaseofadifferentialpressureofmorethan13bar,itisnecessarytouseseatringswithahigherShorehardnessValves from DN 600max.differentialpressure10bar,availableseatringmaterials:EPDMandNBRLug style bodyIfitisremovedfromtheflangeononeside,max.differentialpressure6bar

Thepressureandtemperaturerangediagramshowstheapplicationlimits ofthedifferentseatringmaterials. Theselimitsapplytotheintendeduse. Processvariablesandcharacteristics ofthemediumcaninfluencethevaluesofthediagram.Temperaturesbelow 0°Cuponrequest.

Code Body

22 GreycastironGG25,ENGJL-250

44 CaststeelGS-C25,ENGP240H+N

24 DuctileironGGG40.3EN-GJS-400-18-LT

66 Stainlesssteel1.4408

Code Seat ring

E EPDM

Ew EPDMwhite

B NBR

S MVQ(silicone)

V FPM

PU PU(polyurethane)

H CSM

Code Valve disc


31 Stainlesssteel1.4517,polished

13 Bronze


77 PTFE-lined

78 E-CTFE-coated

79 EPDM-rubberlined

93 AlloyC22

94 Titanium

EPDM (Ethylene-Propylene-Terpolymer)Operatingtemperature:-20°Cto+130°C

NBR(nitrilerubber)Operatingtemperature:-20°Cto+110°C

MVQ (siliconerubber)Operatingtemperature:-30°Cto+200°C

FPM (fluorineelastomer)Einsatztemperatur:- 10°Cto+ 180°C

PU (polyurethane)Operatingtemperature:-20°Cto+80°C

CSM(chlorosulfonatedpolyethylene)Operatingtemperature:-10°Cto+130°C


TECHNICAL DATAButterflyvalve|resilient-seated|seriesK

AdvantagesLow-wearfunction

Secureshut-offofsolidswithoutfrictionintheseat

Thevalveopensandcloseswithoutseatcompression

Veryservice-friendly:Veryquick changeofseatringduetothetwo-piecebodydesign

Longservicelifeoftheseatringduetostablethick-walleddimensioningoftheelastomer

Thevalvesareavailableaswafer version(typeKS9)andaslugversion(typeKS7)

BUTTERFLY VALVEWithinflatableseatring|typeKS9|KS7

BUTTERFLY VALVES

Valvecloseswithoutseatcompression

Thebutterflyvalveswithinflatableseatringarepreferablyusedfortheshut-off,dischargeanddosingofabrasive bulkmaterials.

Duetothepneumaticpressurisationoftheseatringin positionCLOSED,thevalveswitcheswithoutfrictionand withoutpreloadbetweenseatandvalvedisc.Signsof wearareavoidedinthisway.

Theactuatorisdesignedaccordingtothelowrunning torquesofthevalveinunloadedcondition.

Gentlehandlingofsensitivemediabetweendiscandcollar.

Valveclosedseatringpneumatically preloadedandbubble-tight

Valveopenswithoutfrictionwhentheseat isunloaded

Compressed air inlet

Compressed air ventilation


DETAILED SOLUTIONSButterflyvalve|withinflatableseatring|typeKS9|KS7

AdvantagesCentricbutterflyvalvefortheeffectiveandsafeindustrialapplication

Economicequipmentwiththe one-piecebodydesign

Completebodyislinedwithelastomerwiththeseatringasamultifunctionalsealingelement

VDI 2440EPDM

BUTTERFLY VALVES

BUTTERFLY VALVECentric|typeKG2|KG4


2 Additional O-ring seal Sealsthestemguidetotheoutside.

3 Two-piece, anti-blowout stem Providesastablebearingofthevalvedisc.

4 Primary sealing Integratedintheseat,guaranteesapressure-resistantsealing totheoutside,additionallabyrinthlayout,sealstowardsthestem.

5 Body One-piecewithcentringlugsorthreadedcamsasflangeversion.

6 Valve disc Withhighall-roundfinish.

7 Seat ring Multifunctionalsealingelement,easytoreplace,maintenance-free, longservicelife,tightsealingintheseat,totheflangesandatthe stempassage,securelockinginthedovetail,embeddedinthehousing withoutedgeprotrudingovertheflange.

8 Seat tightness Anabsoluteseattightnessupto10barisachievedduetothespecialdesignofthevalvediscsealingsurface.


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TECHNICAL FEATURESButterflyvalve|centric|typeKG2|KG4


Technical DataWafertypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.One-piecebody,self-centring,two-piecediscandstemconnection,bubble-tightupto10bar,vacuum-tight.

Face-to-face dimensionDINEN558line20API609table1

Mounting flangeDINENISO5211

TestDINEN12266P10P11P12LeakagerateA

Type KG 2/4 DVGWwaterDN50–DN500Technical Data WafertypebutterflyvalveorlugtypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.One-piecebody,selfcentring,two-piecediscandstemconnection,bubble-tightupto10bar,vacuum-tight.DVGW-approvedforwateraccordingto DINEN1074-1/-2 DVGWW270KTWtestKA0076/12.





Technical Data LugtypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16, ASMEclass150.One-piecebody,selfcentring,two-piecediscandstemconnection,bubble-tightupto10bar,vacuum-tight.Thepipelinecanberemovedfromtheflangeononeside.




Type KG 2/4 DVGWgasDN50–DN500Technical DataWafertypebutterflyvalveorlugtypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.One-piecebody,self-centring,two-piecediscandstemconnection,bubble-tightupto10bar,vacuum-tight.DVGW-approvedforgasaccordingto DINEN13774.




BUTTERFLY VALVES

THE TYPESButterflyvalve|centric|typeKG2|KG4

Code Body

23 DuctileironGGG40/EN-GJS-400-15

Code Valve disc


Code Valve stem

Stainlesssteel1.4021

Code Seat ring

E EPDM

Ew EPDMwhite

B NBR

S MVQ(silicone)

V FPM

PU PU(polyurethane)

ED EPDMDVGWwater

BD NBRDVGWgas


Availablematerials

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EPDMNBR

FPM MVQ

PU


Temperature °C

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rControl range20°–60°openingangle

Vacuum-tightupto10-2mbar(a)

Valves DN 50 to DN 500max.differentialpressure10bar

Lug style bodyIfitisremovedfromtheflange ononeside,max.differential pressure=6bar

Thepressureandtemperaturerangediagramshowstheapplicationlimits ofthedifferentseatringmaterials.

Theselimitsapplytotheintendeduse.

Processvariablesandcharacteristicsofthemediumcaninfluencethevaluesofthediagram.

Temperaturesbelow0°Cupon request.


TECHNICAL DATAButterflyvalve|centric|typeKG2|KG4

AdvantagesCentricvalvediscwithfirm,clearance-freedisc/stemconnection

CompletebodyislinedwithPTFE(min.3mm)

Permanentsealingwithfullchemicalresistance

Veryaggressiveandcorrosivemediaaretransportedsafely

Option:Pharmaceuticalversion/ cavityfreewithsmoothPTFEsealingsurfacestotheflangealsoas conductiveversionwithFDAapproval

VDI 2440EPDM

BUTTERFLY VALVES

BUTTERFLY VALVEPTFE-lined|seriesK

1 Standard mounting flange · StandardmountingflangeaccordingtoENISO5211· Directactuatormountingwithoutinterruptionofthestem· Variableandexchangeableforanyactuatorsize· Actuatorprotectionagainstleakage

2 Two-piece body Standardface-to-facedimension,veryservicefriendly,simpleexchangeofinternalpartsonlypossiblebecause ofthetwo-piecebodydesign.

3 Bearing bush with O-ring seal

4 PTFE-seat ring Insoliddesign(3mm),diffusion-resistant,ensuresapermanentsealingatthestempassage,intheshut-offandtotheflanges.

5 Elastomer spring element ExactlyfittedflexibleringofMVQorEPDMbehindthePTFEseatringensuresflexiblesealingoftheshut-off.

6 PTFE valve disc Solid(4mm)PTFE-/PFA-coatedstainless-steelcarrierwithstemprotectionintheprimarysealingarea.

7 Primary sealing Integratedintheseatring,guaranteesthecavity-free andpressure-resistantsealingtotheoutside.Pressure isappliedbythespring-loadedthrustbearings.


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TECHNICAL FEATURESButterflyvalve|PTFE-lined|seriesK


Technical DataWafertypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.

Two-piecebody,selfcentring,one-piecevalvediscandstem,bubble-tightupto 10bar.





Technical Data LugtypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.


Thepipelinecanberemovedfromtheflangeononeside.





Technical Data LugtypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16, ASMEclass150.


Thepipelinecanberemovedfromtheflangeononeside.





Technical DataWafertypebutterflyvalveforinstallationbetweenflangesEN1092,PN10/16,ASMEclass150.





BUTTERFLY VALVES

THE TYPESButterflyvalve|PTFE-lined|seriesK

Type KG 6 / KG 8 DN50–DN300

Seat ringPTFE standard

PTFEstandardseatringofpurePTFEinsoliddesign(3mm),completelydiffusion-resistant.

Elastomerspringelement asexactlyfittedflexibleringofMVQorEPDMbehind thePTFEseatringensures aflexiblesealingofthe shutoff.

Ensuresthepermanent sealingatthestempassage,intheshut-offandtotheflanges.

Rangeofapplication-30°Cto180°Cdependingontheelastomer.

Type KG 6/KG 8 DN50–DN300

Seat ringPTFE carbon/conductivepharmaceutical version

SeatringofPTFEcarbon insoliddesign(3mm),completelydiffusion-resistantwithoutreturnattheflangesealingsurfaceaccordingtotheFDAdirectives.

Fortheuseinthefood productionandinthepharmaceuticalindustry,whereaconductivity accordingtotheATEX directiveandconformity withtheFDAisrequired.



Seat ringPTFE carbon/PTFE conductive

PTFEcarbonseatringas amixturewithacarbon contentof25%foran increasedstrengthand improvedtemperature resistance.

PTFEconductiveseatringasamixturewithacarboncontentofapprox.1%.

Ensurestheelectricalconductivity,whichmeetstherequirementsoftheATEXdirective.

Rangeofapplication-30°Cto200/180°Cdependingontheelastomer.


Seat ringPTFE pharmaceuticalversion

PTFEseatringofpure PTFEinsoliddesign(3mm),completelydiffusion-resistantwithoutreturnattheflangesealingsurface.

Therefore,completely cavityfreestructurefortheuseinthefoodproductionorinthepharmaceuticalarea.



Primarysealing

Theprimarysealingofthestem passageisadjustedtoadefinedvalueviathespring-loadedstainlesssteelthrustbearing.Themediumisalreadyshutoffsecurelyatthiscontactsurface(supportedbyanadditionalPTFE- flexiblesealing)betweentheprimarysealingsurfaceofthevalvediscandthepreloadedPTFElining.

Thevalvestemdoesnotcomeintocontactwiththemedium.Agaslockatthestemoutletisphasedasadditional–third–barrierdirectlybehindthe primarysealing.This“threefoldsealing”ensuresthecompletelytightfunctiontotheoutsideandpreventsleakagesintothespaceinsidethebodybehind. Thisisthemostsecureandeffective methodinordertocounteracttheemissionsaccordingtotheTA-Luft(GermanTechnicalRegulationsonEmissions).

ThePTFE-linedbutterflyvalvesarealreadytestedandcertifiedaccordingtothestandardversionofthecurrentdirectivesoftheTA-Luft/VDI2440.

Aggressiveandcorrosivemediaareshutoff,controlledandregulatedsafelywiththechemicalvalve–PTFE-linedandcentric.ThematerialPTFEensuresanalmostunlimitedusewithfullchemicalresistance.Theminimummaterialthicknessisevenexceededinimportantareas,inordertoensureahighdiffusionresistance.Onlytwocomponentscomeintocontactwith themedium:valvediscandseatring.

Atypicalapplicationistheuseinthefoodproductionandinthepharmaceuti-calareathankstothecompletelycavity- freestructureandthephysiologicallyneutralcharacteristicofthePTFEmate-rialwhereproductcontactcanoccur.

Thedualspring-loadingprinciplebehindtheseatringensureapermanentsealingintheshut-off.

Thesealingfunctionisachievedreliablyatthefullcircumferenceof theshut-offwiththe“springelement”elastomerinsertbehindthePTFElining.

Theprimarysealingofthestem passageisspring-loadedseparatelybymeansofpreciselyadjusteddiscspringwashers.

BUTTERFLY VALVES

DETAILED SOLUTIONSProcessvalve|PTFE-lined|seriesK

Sitzring PTFEElastomer EPDM

Elastomer MVQSitzring PTFE/Kohle

ElastomerMVQ

SitzringPTFE

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Temperatur °C

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Druck/Temperatur-DiagrammPressureandtemperaturerangediagram

Control range20°–60°openingangle

Valves DN 50 to DN 500max.differentialpressure10bar

Vacuum-tightDN50–toDN300:upto1mbar(a)fromDN350to200mbar(a)forthetemperaturerange-10°Cto+100°C

PTFE (polytetrafluorethylene)with EPDM elastomer Operatingtemperature: -20°Cto+130°C withMVQorFPMelastomer Operatingtemperature:upto+180°C

PTFE / carbon(Reinforcedpolytetrafluorethylenewithacarboncontentof25%asfillermaterial)withsiliconeelastomerOperatingtemperature:upto+200°C

Thepressureandtemperaturerangediagramshowstheapplicationlimitsofthedifferentseatringmaterials.

Theselimitsapplytotheintendeduse.Processvariablesandcharacteristicsofthemediumcaninfluencethevaluesof

thediagram.Temperaturesbelow0°Cuponrequest.

Availablematerials

Code Body

22 GreycastironGG25/ENGJL-250

24DuctileironGGG40.3 EN-GJS-400-18-LT

44 CaststeelGS-C25/ENGP240H+N


6A Stainlesssteel1.4408

Code Seat ring

T PTFE

TK PTFE/carbon

TT PTFEpharmaceuticalversion/cavity-free

TL PTFE,conductive

TF TFM

U UHMWPE

TLT PTFE,conductive,cavity-free

Code Valve disc


31 Stainlesssteel1.4517,poliert

69 1.4529

77 PTFElined

76 PFAlined

75 PTFE,conductive,lined

93 AlloyC22

94 Titanium


TECHNICAL DATAButterflyvalve|PTFE-lined|seriesK

AdvantagesReliablesealingagainsthighpressuresandlowtorquesduetothedouble offsetdesign

Low-wearswitchingcharacteristics

Securestemsealing(Option:TA-Luft)

Variableseatringmaterials

GEFA-MULTITOPEfficientautomationwithvariableinterfacewithoutinterruptionofthestem

Pivotinganglelimitationandopticalpositionindicatoratthestempreventswrongpositionofthestemduringservicing

VDI 2440EPDM

CRYO-AUSFÜHRUNG-196°C

BUTTERFLY VALVES

HIGH PERFORMANCE BUTTERFLY VALVEButterflyvalvedoubleoffsetdesign|typeHG


2 Safety (option: TA-Luft) Stemsealingcanbere-tensionedbeneaththemountingflange; thus,itcanbereadjustedwithoutdismountingtheactuator.

3 Long service life Theinsertringofthebodyefficientlyprotectstheseatringfromthe directmediumflowandpreventswearsuchaserosionandabrasion.

4 Reliability Thedoubleoffsetdesignwithsphericalsealingsurfaceatthediscallowsswitchingwithminimumwearandoffersthehighestleveloftightnessandlowtorquesatthesametime.

5 Exact and variable Face-to-facedimension:EN558line20/25/16Option:Designwithgroove/springEN1092,formD

6 Precise mounting Easymountingduetocentringaidsforallstandardflanges.

7 Service-friendly Theaxialcentringofthestemcanbereachedeasilyandisprepared forlaterservice.

8 Efficient and safe Thecylindricalscrewsfixthemountingflangewithouttransferring torques(drivingtorques).

9Theclampingsleevesguaranteeaclearance-freeconnectionbetween themountingflangeandthebodyandtransferthedrivingtorques.


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TECHNICAL FEATURESButterflyvalvedoubleoffsetdesign|typeHG

Type HG 1 DN50–DN600

Doubleoffsetvalveaswafertypebutterflyvalveforhighpressureandtemperatureloads

Wafer style

Technical DataForinstallationbetweenflangesEN1092, PN10/16/25/40,PS25 ASMECl150/300,PS25Temperature range-50°Cto+450°CVacuum:upto1mbar(abs)Face-to-face dimensionDINEN558line20Optional:line25andline16API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000

Type HG 7 DN50–DN600

Doubleoffsetvalvewithlugsforhighpressureandtemperatureloads

Can be removed from theflange on one side


Type HG 7 ...BK DN50–DN600

Doubleoffsetvalvewithlugsforhighpressureandtemperatureloads

Can be removed from theflange on both sides


Type HGF DN50–DN600FireSafe version

Doubleoffsetvalvefor theuseintheFireSafe areaaccordingto DINENISO10497,API607undBS6755Part2

Wafer or lug style

Technical DataForinstallationbetweenflangesEN1092,PN10/16/25/40,PS25ASMECl150/300,PS25Temperature range -50°Cto+450°CFace-to-face dimensionDINEN558line20Optional:line25andline16API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000

THE TYPESButterflyvalvedoubleoffsetdesign|typeHG

BUTTERFLY VALVES

Type HGC DN50–DN600Cryo version

Doubleoffsetvalvefortheusedownto-200°Cwithcryogenicstemextension aspressurechamber

Wafer or lug style


Type HGH DN50–DN600Valve with heating jacket

Doubleoffsetvalvewith heatingjacketwithtwochambersconnections:flange,weldingsocket,threadedsocket


Type HGHL DN50–DN600Welded valve

Doubleoffsetvalvewithdoubleshellforheatingwithoutinterruptionofthepipelineheating.

Technical DataForinstallationbetweenflangesEN1092,PN10/16/25/40,PS25ASMECl150/300,PS25Temperature range-50°Cto+450°CFace-to-face dimensionaccordingtocustomerspecificationsMounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000

Type HG1 /7 L DN50–DN600Food

DoubleoffsetvalvefortheuseinthefoodindustryaccordingtotheregulationEC1935/2004

Technical DataForinstallationbetweenflangesEN1092,PN10/16/25/40,PS25ASMECl150/300,PS25Temperature range-20°Cto+200°CVacuum:upto1mbar(abs)Face-to-face dimensionDINEN558line20Optional:line25andline16API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000VO(EG)1935/2004


Theseatringsystem

Highly flexible with optimisedrestoring forceIfitisinstalledintherecommendedflowdirection,thedifferentialpressureeffi-cientlysupportsthebubble-tightsealing

Options· Lowtemperatureseatring· Seatringmadeofhighperformanceplasticsforextremecasesofapplication

R-PTFE seat ring Highlyflexibledesign–chemicallyalmostunlimitedresistant.Pressure-resistantduetoglassfibrereinforce-mentevenathightemperatures. TightnessEN12266,leakagerateA.

Metal seat ringExcellentspringcharacteristicsduetothespecialform.Hightemperature-resistantduetotheseatringconstruction of:1.4571nitrated,tightnessupto+450°C,EN12266,leakagerateB.

Firesafe seat ringDoubleseatPTFE/1.4571certifiedaccordingtoENISO10497:2010-06API607,6thedition.

Thedoubleoffsetdesignallowsareliable,almostwear-freeshut-off. Duetothedoubledisplacementofthepivot,thevalvediscisliftedfromtheseatatthebeginningoftheopeningmovement.Theseatisthenfreefromheavypressureoverthewholecircumference.

The 90 ° turning is frictionless ateven reduced torques.

Thesedesigncharacteristicsallowanextremelylongfunctionallife–even athighswitchingfrequencies.Therecommendedpressuredirection(arrowmarkatthebody)ensurescompletetightness.

Theactivepressure(differentialpressure)ofthemediumadditionallysupportsthesealingfunctionviathepressingeffectoftheseatringagainstthesealingsurfaceofthedisc.Theinsertringandthebodyadditionallyprotecttheflexibleseatringefficientlyagainstnegativeflowinfluences.

Thedoubleoffsetdesign

DETAILED SOLUTIONSButterflyvalvedoubleoffsetdesign|typeHG

BUTTERFLY VALVES

Position Designation Material

≤ DN 300≥ DN 350

HG 4466 TGHG 4444 TG

HG 6666 TG HG 4435 MHG 4444 M

HG 6635 MHG 4435 HMHG 4444 HM

HG 6635 HM HGF 4466 TM HGF 6666 TM

max. operating temp. +220°C +220°C +220°C +220°C +450°C +450°C +200°C +200°C

1 Body 1.0619 1.4408 1.0619 1.4408 1.0619 1.4408 1.0619 1.4408

2 Valvedisc≤DN300≥DN350

1.44081.0619/nickel-plated

1.44081.4408

1.4408/ nitrated1.0619/ nickel-plated

1.4408/ nitrated1.4408/ nitrated


1.4408/ nitrated1.4408/ nitrated


1.44081.4408

3 Welle 1.4571 1.4571 1.4571 1.4571 1.4571 1.4571 1.4571 1.4571

4* Seatring PTFE/Glas PTFE/Glas 1.4571/nitrated/ Graphite**

1.4571/nitrated/ Graphite**



PTFE/1.4571/nitrated+ Graphite

PTFE/1.4571/nitrated+ Graphite

5 Bearingbush 1.4401/PTFE 1.4401/PTFE 1.4401/PTFE 1.4401/PTFE 1.4571/nitrated 1.4571/nitrated 1.4571/nitrated 1.4571/nitrated

6* Package PTFE PTFE PTFE PTFE Graphite Graphite Graphite Graphite

7 Insertring C-steel 1.4571 C-steel 1.4571 C-steel 1.4571 1.4571 1.4571


Dif

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0-40 50 100 150 200 250 300 350 400 4500

5

10

15

20

25

30

35

500

Body

40

45

50

55

POM seat

PEEK seat

Saturated steam

DN 50 - DN 300

PTFE seat PTFE/glass seat

PTFE/carbon seat

Metal seat

PN 25

PTFE seat

0

5

10

15

20

25

POM seatPTFE/glass seat

DN 600

Dif

fere

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ssur

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r

0-40 50 100 150 200 250 300 350 400 450 500

PTFE/carbon seat

Metal seat

Body

Saturated steam

Temperature °C

PN 10

Metal seat

PTFE/glass seat

40

35

30

25

20

15

10

5

0

POM seat

PTFE/carbon seat

Body Saturated steam

DN 350 - DN 500

Dif

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0-40 50 100 150 200 250 300 350 400 450 500

PTFE seat

PN 16

Temperature °C

Temperature °C


Dif

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0-40 50 100 150 200 250 300 350 400 4500

5

10

15

20

25

30

35

500

Body

40

45

50

55

POM seat

PEEK seat

Saturated steam

DN 50 - DN 300


PTFE/carbon seat

Metal seat

PN 25

PTFE seat

0

5

10

15

20

25


DN 600

Dif

fere

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ssur

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r

0-40 50 100 150 200 250 300 350 400 450 500

PTFE/carbon seat

Metal seat

Body

Saturated steam

Temperature °C

PN 10

Metal seat

PTFE/glass seat

40

35

30

25

20

15

10

5

0

POM seat

PTFE/carbon seat


DN 350 - DN 500D

iffe

rent

ial p

ress

ure

bar

0-40 50 100 150 200 250 300 350 400 450 500

PTFE seat

PN 16

Temperature °C

Temperature °C


Dif

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0-40 50 100 150 200 250 300 350 400 4500

5

10

15

20

25

30

35

500

Body

40

45

50

55

POM seat

PEEK seat

Saturated steam

DN 50 - DN 300


PTFE/carbon seat

Metal seat

PN 25

PTFE seat

0

5

10

15

20

25


DN 600

Dif

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ssur

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r

0-40 50 100 150 200 250 300 350 400 450 500

PTFE/carbon seat

Metal seat

Body

Saturated steam

Temperature °C

PN 10

Metal seat

PTFE/glass seat

40

35

30

25

20

15

10

5

0

POM seat

PTFE/carbon seat


DN 350 - DN 500

Dif

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0-40 50 100 150 200 250 300 350 400 450 500

PTFE seat

PN 16

Temperature °C

Temperature °C


Availablematerials


Vacuum-tightupto1mbar(a)

Flange surfacesaccordingtoDINEN1092-1formB1

Thepressureandtemperaturerangediagramshowstheapplicationlimitsofthedifferentseatringmaterials. Theselimitsapplytotheintendeduse.Processvariables andcharacteristicsofthemediumcaninfluencethevaluesofthediagram.Temperaturesbelow-50°Cuponrequest.

Nominal size Nominal pressuremax. operating pessure

DN50–DN300PN10/16/25/40ANSI150/300

25bar

DN350–DN500PN10/16/25ANSI150

16bar

DN600–DN1000PN10/16ANSI150

10bar

Themaximumoperatingpressuredependsontheoperatingtemperature.

*Sparepart/wearpart,**Option:1.4571/nitrated/PTFE


TECHNICAL DATAButterflyvalvedoubleoffsetdesign|typeHG

AdvantagesTightshut-offinbothpressuredirections

Temperaturerangeupto+450°C

Frictionlessswitchingtothelaminatedseat

Installationofthelaminatedseatinthebody

Securestemsealing(Option:TA-Luft)

GEFA-MULTITOP

Efficientautomationwithvariableinterfacewithoutinterruptionofthestem

Pivotinganglelimitationandopticalpositionindicatoratthestempreventswrongpositionofthestemduringservicing

VDI 2440EPDM

BUTTERFLY VALVES

HIGH PERFORMANCE BUTTERFLY VALVETripleoffset|typeHGT

1 Automation · Standardizedmountingflangeacc.toDIN3337/ISO5211· Directmountingofactuator,allowingcorrectalignment· Variabletopworksarrangements,allowingfordifferentactuator sizestobemounted

2 TA-Luft tested safety (optional)Adjustablestemsealing,locatedbelowthetopflange,allowingadjustment withoutremovingtheactuator.

3 Long service life Theinsertring,mountedwithitsorientationagainstthedirectionofflow,activelyprotectstheintegratedlaminatedseat/sealfromprematureerosionandwear,providinglongerservicelifeandreducedcostsanddowntime.

4 Insert ring Pressure-sealedbolteddesign–locatedoutsideoftheflangesealingsurfaceaccordingtoTA-Luft.

5 Reliability Duetothedesignoftheseat,tripleoffsetvalvesaretorque-seated.Therefore theactuatortorqueisconstantlyusedtoensurecontactpressurebetween theseatingsurfaces.Thisisnecessarytoprovidezeroleakageperformance.

6 Exact and variable Face-to-facedimension:EN558,line20(25/16)

7 Bearing · Stembearingsabsorbadverseloadsandsecurelysupportthestem· Continuoussecuredstemguidanceprovidesmaximumsupportforthe single-pieceshaftconstructedofhigh-tensilematerials

8 Precise mounting Simpleandprecisemountingusingwaferbodylocationholesforall face-to-facedimensions.

9 Axial securing Axialsecuringdeviceandhardenedaxialsecuringringensureperfectstem anddiscalignment,positionedawayfromthemediumandbuiltintothe bottomflange.


1

2

3

4

56

7

8

9


TECHNICAL FEATURESHighperformancebutterflyvalve|tripleoffset|typeHGT

Type HGT 1 DN80–DN300

Tripleoffsetvalveaswafertypebutterflyvalveforhighpressureandtemperatureloads

Wafer style

Technical DataForinstallationbetweenflangesEN1092,PN10/16/25/40,PS25,ASMECl150/300,PS25Temperature range-50°Cto+450°CVacuum:upto1mbar(abs)FireSafeaccordingto:DINENISO10497andAPI607Face-to-face dimensionDINEN558line20Optional:line25andline16API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000

Type HGT 7 DN80–DN300

Tripleoffsetvalvewithlugsforhighpressureandtemperatureloads

Can be removed from the flange on both sides

Technical DataForinstallationbetweenflangesEN1092,PN10/16/25/40,PS25,ASMECl150/300,PS25Temperature range-50°Cto+450°CVacuum:upto1mbar(abs)FireSafeaccordingto:DINENISO10497andAPI607Face-to-face dimensionDINEN558line20Optional:line25andline16API609table1Mounting flangeDINENISO5211TestDINEN12266P10P11P12F20MarkingDINEN19,AD2000

THE TYPESHighperformancebutterflyvalve|tripleoffset|typeHGT

BUTTERFLY VALVES

Laminatedseat

Thelaminatedstainlesssteel/graphiteseatensuresbidirectional,zeroleakageshut-offthroughoutthefulltemperaturerangeof-50°Cto+450°C.

· Bidirectionalzeroleakageshut-off

· Metal-Metal,frictionlessnon-interferencediscoperation

· Continuoussmoothjam-freeoperationduetotheoffsetangleofthesealingsurface

· Laminatedseat/sealsystem,madeofstainless steel/graphite

· Seat/sealsystemintegraltovalvebody–notonthedisc

· Theinsertring,mountedagainstthedirectionofflow, activelyprotectsthelaminatedseat/sealsystemagainst wear.

· Additionallythelaminatedseatwillnotwearprematurelyasitiscommonwithlaminateddiscsealsystems.

· Theflexiblemetallaminatedseat/sealissecurelyfastenedbytheinsertringpositionedinfront.Thefloating,self- centreddesignofthelaminatedseat/sealsystemensuresaccuratemountinginthevalvebody.

· Whenre-seatingthedisc,thelaminatedseat/sealsystemself-centrestothedisc.

· Theelasticityofthelaminatedseat/sealsystemensuresuniformperipheralsealingwiththedisc.

· Zeroleakageacc.toDINEN12266-part1,leakagerateAaswellaslowtorquesandcontinuoussmoothoperation.

BearingStembearingsabsorbadverseloadsandsecurelysupportthestem.

Continuoussecuredstemguidanceprovidesmaximumsupportforthesingle-pieceshaftconstructedofhightensilematerials


DETAILED SOLUTIONSHighperformancebutterflyvalve|tripleoffset|typeHGT

Thetripleoffsetprinciple

Thetripleoffsetbutterflyandregulatingvalvesarethe advancementofthedoubleoffsettechnology.

Inadditiontothedescribeddoubledisplacementsofthe sealingsurfacefromthestempivot,thethirdeccentricity isachievedbythedisplacementoftheaxialsymmetryof thesealingsurfaces(theseataxisisdisplacedfromthe tubeaxis).

Asacubicbody,theconeisthestartingpointforthis function.

Theconeisnotcutinthestraight,centriclevel,bute.g. (asshownontheschematicdrawing),atarightangleto theexternalbodyline.

Thevalvediscisnotswitchedtotheseatthroughthisgateuntilthelastpossiblemoment.Thecontactofthetwosealingsurfacestakesplacewithoutfrictionandwithoutjamming.Thisdesignprincipleensuresalowswitchingtorquewithhighpressuresandtemperaturesatthesametime.

ConeTheconesectionisthebasisforthefunctionofthethirdeccentricity.

DETAILED SOLUTIONSHighperformancebutterflyvalve|tripleoffset|typeHGT

BUTTERFLY VALVES

Designation Material

HGT 4435 MG HGT 6635 MG

Body 1.0619 1.4408

Valvedisc 1.4408,hardened 1.4408,hardened

Stem 1.4542 1.4542

Seatring* Laminated1.4571/Graphite Laminated1.4571/Graphite

Bearingbush 1.4571,nitrated 1.4571,nitrated

Packing1) Graphite Graphite

Pressure class/max. working pressure

Nominal size Nominal pressure max. working pressure

DN80-DN300 PN10/16/25/40ASMEclass150/300

25bar

Availablematerials

Flange surfaces accordingtoDINEN1092-1formB1

* Sparepart/wearpart1) Alternative:PTFE/LATTYflon(TA-Luft)/graphiteTA-Luftapproved

Themaximumoperatingpressuredependsontheoperatingtemperature.


-50 0 50 100 150 200 250 300 350 400 450 5000

5

10

15

20

25

30

35

40

45

50

55

Temperature °C

Dif

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Body

DN 80 - DN 300

Metal / graphite seat

Saturated steam

PN 25


Vacuum-tightupto1mbar(a)

Thepressureandtemperaturerangediagramshowstheapplicationlimitsofthemetal/graphiteseatring.

Theselimitsapplytotheintendeduse.

Processvariablesandcharacteristicsofthemediumcaninfluencethevaluesofthediagram.

Valvefortemperaturesbelow-50°C:uponrequest.


TECHNICAL DATAHighperformancebutterflyvalve|tripleoffset|typeHGT

AdvantagesGoodcontrolbehaviour

Throttlevalvecompletelymade ofstainlesssteel1.4408

Smoothsurfacesduetoprecision castingtechnology

Innercontouradditionallyprocessedinacleanmechanicalway

Directmountingofallactuators–efficientandsafe

BUTTERFLY VALVES

THROTTLE AND REGULATING VALVETripleoffset|typeKGT

Type KGT DN80–DN250

Technical DataWafertypebutterflyvalveforinstallationbetween flangesEN1092,PN10,one-piecebodywithcentringlugs, end-to-endvalvestem,flatdiscdesignwithexcellentflowcharacteristics.

Face-to-face dimensionEN558line20

Mounting flangeENISO5211

Thesettingrange0°–70°isusedfornormaloperation. Intheareaof20°–60°,thevalvehasanalmostlinear flowcharacteristiccurve.

Technical Features

Availablenominalsizes DN80–DN250

Installationbetweenflanges EN1092,PN10

max.differentialpressure∆p 8bar

LeakagerateinpositionCLOSED 1–2%

max.temperature 180°C

DN kvs 90°

80 520

100 850

150 1.900

200 3.200

250 5.500

Opening angle °

Flow

rat

e in

%

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90


TECHNICAL DATAThrottleandregulatingvalve|typeKGT

GEFAautomatesallofferedvalveswithdevicesfromourownrangeofproductsor

accordingtocustomerrequestsandspecifications

Advantage:

Efficientprocessinganddeliveryofcompletefunctionalunits,whichareadjustedtechnically

tooneanotherandaretestedwithregardtoproperfunctioningpriortodelivery

MOUNTING PARTS

ACTUATION / AUTOMATION90°valves

Hand leverAluminiumorstainlesssteel,notchplatemadeofsteel,galvanisedorstainlesssteel

Worm gear with handwheelAluminium,greycastiron, stainlesssteel, marineversion/C5M

Electric actuators (on/off and modulating) ForOPEN/CLOSE function,inchingandnormaloperation(option:normaloperationwithvariablespeed),Profibus,ATEX,SIL

Pneumatic actuatorDouble-/singleactingwithsafety positionincaseofenergy/compressedairfailure,optionalendposition adjustmentOPEN/CLOSE, hightemp.version/lowtemp.version, stainlesssteel/C5M,ATEX,SIL

Electro-pneumatic positionerOptions:analogue/digitaldiagnosticssoftwareIndustrie4.0,ATEX,SIL

End position feedbacksHousingmadeofaluminium/plastic/VESTAMID/stainlesssteelwithopticalpositionindicator,mechanicSPDTswitchesOPEN/CLOSE,inductiveproximitysensors,slottedproximitysensors,REEDcontacts,ASI-Bus,ATEX,SIL

Solenoid valves3/2-5/2-ways,5/3-waysoptionallywithairchokes,throttleblock,quickexhaustvalves,ATEX,SIL

Limit switchMountedlimitswitchesorinductive proximityswitches,ASI-Bus,ATEX,SIL


THE TYPES

AdvantagesProven and reliable ball valve even in case of high pressures

Very service-friendly:Very quick replacement of seals due to the center section, which can be swivelled out

For applications with corrosive media the DG-valves can be supplied in material 1.4529

The ball valves can be adjusted to yourapplications and requirements due tothe wide range of end connectors

VDI 2440EPDM

BALL VALVES

BALL VALVEFull/reduced bore | 3-piece | series DG

1 Automation · StandardmountingflangeaccordingtoENISO5211· Direct actuator mounting without interruption of the stem· Pneumatic, electric or manual actuation possible

2 SafetyLow-maintenanceduetospring-loadedV-ringsmadeofPTFEorgraphitepacking.Optional:TA-Luft

3 Primary sealingTogether with the complex design of the anti-blowoutstem, the internal seal ensures a leakage-free application,even in case of a high number of cycles.

4 Service-friendly and exact mountingThe center section is guided through the fully centred screwguidancetothecorrectpositionattheflanges.

5 Shut-off valve The surface of the ball is high-gloss polished andextremely accurate (roundness)

6 Body sealSecure sealing due to the separate, fullyencapsulated body seal.

7 Seat ringCompletely leak-tight in the bore due to the special form ofthe seat rings. The preload of the seat rings causes a springeffect, which results in a reliable sealing in all pressureranges.Materials:PTFE,PTFE/glass,PTFE/carbon,PEEK,UHMWPE,POM,PVDF.

8 Variable end connectors· Butt weld end, short· Butt weld end, long· Orbitalweldends· Threadedend/femalethread/NPT· Full bore / reduced bore· Weldingflanges

1

2

34

7

5

6

8


TECHNICAL FEATURESBall valve | full/reduced bore | 3-piece | series DG

Series DG 1 type 2 Short butt weld endsDN8–DN150

Full and reduced bore

Technical dataBall valve for welding, short version, 3-piece body, pressure class depending on the nominal size up to PN125,floatingball, vacuum-tight.

Pipe dimensionsCan be adapted tocustomerspecifications.


TestDINEN12266P10,P11,P12Leakage rate A

Series DG 1 type 3 Threaded ends DN8–DN100


Technical dataBall valve with female thread ends according to DIN2999-Rp(pipethread),ISO228/1-GorNPT, 3-piece body, pressure class depending on the nominalsizeuptoPN125,floatingball, vacuum-tight.



Series DG 1 type 7 Long butt weld ends DN8–DN50

Full bore

Technical dataBall valve for welding, long version, 3-piece body,pressure class depending on the nominal size up to PN125,floatingball, vacuum-tight.

Special featuresNodisassemblynecessaryfor welding.

Pipe dimensionsCan be adapted tocustomerspecifications.



Series DG 1 type 1 Welding flanges DN8–DN150


Technical dataBall valve for installationbetweenflangesaccordingtoDINEN1092orASME,3-piece body, pressure classdepending on the nominalsizeuptoPN125,floatingball, vacuum-tight.

Face-to-face dimensionEN5581line1(DIN3202F1)Otherface-to-face dimensions are possible.



THE TYPESBall valve | full/reduced bore | 3-piece | series DG

BALL VALVES

Series DG 1 type 8 ORBITALweldendsDN8–DN100

Full bore

Technical dataBall valve for welding inORBITALweldingprocess,3-piece body, pressure classdepending on the nominalsizeuptoPN125,floatingball, vacuum-tight.

Special featuresFor the application withultra-clean media.

Pipe dimensionsCan be adapted to customerspecifications.



Series DG 5 Version with almost no cavitiesDN8–DN100


Technical dataBall valve with seat ringsfillingthecavities,3-piecebody, pressure classdepending on the nominalsizeuptoPN125,floatingball, vacuum-tight.

Special featuresCan be combined with allkinds of end connectors.



Series DG F Firesafe versionDN8–DN100


Technical dataBall valve with Firesafeapproval according toBS6755-2,3-piecebody,pressure class depending onthenominalsizeuptoPN40,floatingball,vacuum-tight.

Special featuresCan be combined with allkinds of end connectors.Functional safety due tometallic emergency sealing.Nodisassemblynecessaryfor welding.



Series DG H Heating jacket DN8–DN150


Technical dataBall valve with heating jacketfor all common heating media (pressure pmax = 20bar),3-piecebody, pressure class depending on the nominal size up to PN125,floatingball, vacuum-tight.

Special featuresCan be combined with allkinds of end connectors. For constant temperatures in the interior of the valve.




The Firesafe principle Option:Pressurereliefbore

Ifliquidandthusnotcompressiblemediaaretransported,the pressure in the cavity of the ball valve may increaseconsiderably in case of an increase in temperature. This may be the case, e.g. in case of liquid and thus coldCO2. The pressure relief bore ensures that the space between ball and body is connected with a pipeline section and that the pressure in the cavity can never increase above the pipeline pressure. As standard, the pressure relief bore is made from the convex surface of the ball to the ball bore. As an alternative it is also possible to make the pressure reliefboretowardsthestem.Inthiscase,however,there will only be a pressure relief in the passage position of the ball.

Option:PassagewithfewcavitiesInordertopreventproduct residues and to prevent the interior from running completely empty,theseatringsfillingthecavitiesenclosetheballandfillthe otherwise present cavity.

All common compounds are available as seat ring materials.

IfPTFEsealedvalvesareexposedtoflamesincaseoffire,this may cause the melting of the sealing materials, whichwill inevitably result in leakages to the outside and in thebore.Inordertobesuitablefortheserequirements,the ball valve DGF is equipped with a special sealing system.

The stem packing as well as the body seal are made ofgraphite in order to also withstand high temperatures. Due to the groove and tongue system of the end connector and of the body, the encapsulated body seals are safely pressed and the tightness of the valve to the outside remains ensured.

The contour of the end connectors to the ball are designedin a way, that the ball will press against a metallic sealingedge, if the seat ring melts and that an emergency sealingfunction is achieved in the passage.

downstream side pressure side

pressurereliefsealing

surface

marking of the pressure flow on the body and stem

BALL VALVES

DETAILED SOLUTIONSBall valve | full/reduced bore | 3-piece | series DG

Pressure and temperature range diagram

Dif

fere

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Body

PTF

DN 8 – DN 25140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350Temperature °C

POM

/PVD

F

140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Temperature °C

Dif

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POM

/PVD

F

PEEK

POM

PTFE

PTFE/

PTFE/PEEK

DN 32 – DN 50

PVD

F

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Dif

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PVD

F

DN 65 – DN 150

POM

/PVD

F

PEEK

POM

PTFE/

PTFE/PEEK

Temperature °C

PTFE

E/glass

PTFE/carbon

PEEK

PVD

F

POM

PEEK


PTFE

UH

MW

PEU

HM

WPE

UH

MW

PE

Body

Body

carbon

carbon

glass

glass

Dif

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Body

PTF

DN 8 – DN 25140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350Temperature °C

POM

/PVD

F

140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Temperature °C

Dif

fere

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POM

/PVD

F

PEEK

POM

PTFE

PTFE/

PTFE/PEEK

DN 32 – DN 50

PVD

F

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Dif

fere

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PVD

F

DN 65 – DN 150

POM

/PVD

F

PEEK

POM

PTFE/

PTFE/PEEK

Temperature °C

PTFE

E/glass

PTFE/carbon

PEEK

PVD

F

POM

PEEK


PTFE

UH

MW

PEU

HM

WPE

UH

MW

PE

Body

Body

carbon

carbon

glass

glass

Dif

fere

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Body

PTF

DN 8 – DN 25140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350Temperature °C

POM

/PVD

F

140

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Temperature °C

Dif

fere

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l pre

ssur

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r

POM

/PVD

F

PEEK

POM

PTFE

PTFE/

PTFE/PEEK

DN 32 – DN 50

PVD

F

0

20

40

60

80

100

120

0-50 50 100 150 200 250 300 350

Dif

fere

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ssur

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r

PVD

F

DN 65 – DN 150

POM

/PVD

F

PEEK

POM

PTFE/

PTFE/PEEK

Temperature °C

PTFE

E/glass

PTFE/carbon

PEEK

PVD

F

POM

PEEK


PTFE

UH

MW

PEU

HM

WPE

UH

MW

PE

Body

Body

carbon

carbon

glass

glass

Designation Material

Stainless steel body 1.4408

Stainless steel ball 1.4408

Stem 1.4542(17-4PH)

Endconnectors Stainlesssteel1.4408Stainless steel 1.4529Stahl1.0619(GS-C25)

Seat and body rings PTFE/glassPTFE/carbonPTFEPEEKUHMWPEPOMPVDF

Allpressureandtemperaturespecificationsaremaximumapplicationlimits,whichareinfluencedbytheinteractionofallapplicationfactors.Therefore,withouttechnicaldesignandwithoutourconfirmation,thespecificationsarewithoutcommitment.


TECHNICAL DATABall valve | full/reduced bore | 3-piece | series DG

AdvantagesVariable use due to different ball typesand connections

Manual or automatic version available

Vertical or horizontal connection possible

Cost-effective because standard components of the ball valve DG are used

Service-friendly due to 3-piece design

VDI 2440EPDM

BALL VALVES

MULTIPLE WAY BALL VALVE3-piece | series DG

Series DG 3 DN8–DN65

3-way ball valveHorizontal designFull and reduced bore

Technical dataPressureclassuptoPN40Materials and basic versioncorrespond to the series DG1

Special featuresCan be combined with all end connectors


Switching functionL-bore, T-bore

Series DG 4 DN8–DN65

3-way ball valveVertical designFull and reduced bore

Technical dataPressureclassuptoPN40Materials and basic versioncorrespond to the series DG

Special featuresCan be combined with all end connectors


Switching functionL-bore, T-bore, LL-bore, TL-bore

Input p max. Input p max.


TECHNICAL FEATURESMultiple way ball valve | 3-piece | series DG

Switching functions DG 3

L-bore,0°,90°turning L-bore,90°,90°turning

T-Bohrung,0°,90°turning T-Bohrung,90°,180°turning T-Bohrung,180°,180°turning

BALL VALVES

TECHNICAL FEATURESMultiple way ball valve | 3-piece | series DG 3

Switching functions DG 4

L-bore,0°,180°turning L-bore,90°,180°turning L-bore,180°,180°turning

T-bore,0°,90°turning T-Bore,90°,90°turning

LL-bore,0°,90°turning LL-bore,90°,90°turning

TL-bore,0°,180°turning TL-bore,90°,180°turning TL-bore,90°,180°turning


TECHNICAL FEATURESMultiple way ball valve | 3-piece | series DG 4

AdvantagesFor applications in supply and processsystems with ultra-clean media

Reliablestemsealing

High switching frequency

For continuously welded pipeline connections and consistent high weld seam qualities

Safe sealing to the outside

High degree of tightness in the passage

VDI 2440EPDM

BALL VALVES

BALL VALVE3-piece|ORBITALweldends|seriesDG1type8

TheballvalveseriesDG1type8– with the entire advantages of the basic series–wascurrentlydevelopedfurtherasweldingvalvewithORBITALweldendsfortheORBITALweldingtechnology. With this, we are able to provide a perfect solution for supply and process systems for ultra-clean media to the user and to plant engineering.Optionally,itispossible to polish the entire internal passage oftheballvalvetoRa≤0.8μminorder to meet the high purity require-ments of the “high-purity” applications of microelectronics, bioelectronics and pharmacy.TheORBITALweldends

are turned cylindrically to the required pipe dimensions both in the inner and in the outer pipe diameter, so that a continuous transition is created between valve and pipeline. The external cylindrical diameter of the weld ends allows to take up the ORBITALweldingdevice.

Pipe connection dimensions according to the following, among others:DIN11866–lineA(DIN11850),DIN11866–lineB(ENISO1127),DIN11866–lineC(ASMEBPE),DINEN10220,DINEN10305,ASMESchedules

Options

OptionSeatringsfilling

the cavities

OptionFlushing connections on both sides

(SWAGELOKscrewing)

OptionBall valve passage

electropolished

Available materialsDesignation Material

Body 1.4408

Ball 1.4408

Stem 1.4542(17-4PH)

Weld ends 1.4409

Seat rings PTFEPTFE/glassPTFE/carbonUHMWPEPEEKPOMPVDF


TECHNICAL FEATURESBallvalve|3-piece|ORBITALweldends|seriesDG1type8

AdvantagesCost-effective automation and safe connection

Low pressure loss

Face-to-face dimensionEN558line27(DIN3202-F4)EN558line1(DIN3202F1)

High quality guarantees high security

Testsandcertificatesconfirmthe high quality of the ball valve

VDI 2440EPDM

BALL VALVES

FLANGED BALL VALVEType FG

1

2

3

4

56

7

8

9

1 Direct mountingMounting4flangeENISO5211

2 Flange connection DINPN10/PN40

3 Stainless steel hand lever

4 Reliable stem sealing Guaranteed by spring-loaded V-ringsmadeofPTFE.

5 Safe sealing To the outside guaranteed by theseparate and fully encapsulated body seat.

6 Antistatic design Standard feature.

7 Seat rings Materials:PTFE/glass,PTFE/carbon,PTFE,PEEK,UHMWPE,POM,PVDF.

8 Super-polished ball surface Extremelyprecisecontour(roundness).

9 Anti-blowout stem Insertedfromtheinside.

Two-piecestainlesssteelballvalve–ideallyand cost-effectively prepared for automation according to your requirements


TECHNICAL FEATURESFlanged ball valve | type FG

Type FG DN 15 – 100 Flanged ball valve PN10–40

Technical dataTwo-pieceballvalveforinstallationbetweenflangesaccordingtoDINEN1092,pressureclassdependingonthenominalsizeuptoPN40,floatingball,vacuum-tight.

Face-to-face dimension EN558line27(DIN3202-F4)EN558line1(DIN3202F1)



Type FG DN 150 Flanged ball valve PN16

Technical dataTwo-pieceballvalveforinstallationbetweenflangesaccordingtoDINEN1092,pressureclassPN16,floatingball,vacuum-tight.



BALL VALVES

THE TYPESFlanged ball valve | type FG

Designation

MaterialDN15–100 (PN10/PN40)FG 6666

Body 1.4408

Ball 1.4408

Stem 1.4542(17-4PH)

Body ring 1.4401/graphite

Seat rings PTFEPTFE/glassPTFE/carbonPEEKUHMWPEPOMPVDF

Designation

MaterialDN15–100 (PN10/PN40)FG 6666 T

Body 1.4408

Ball 1.4408

Stem 1.4542(17-4PH)


Seat rings PTFE

Designation

MaterialDN150 (PN16)FG 6666

Body 1.4408

Ball 1.4408/1.4401

Stem 1.4401


Seat rings PTFEPTFE/glass

Available materials

003005- 10050 150 200 250 3500

20

40

10

30

50

DN 65 - DN 100

PEEK

PTFE/

carbon

PTFE/

glassPTFE

PVD

F

POM

UH

MW

PE

PEEK

16

DN 15 - DN 50

Body PN 40

50

40

30

10

20

0 POM

/PVD

F

PEEK

UH

MW

PE

POM

PVD

F

PTFEPTFE / glass

PTFE/

carbon

PEEK2000 0530510010505- 250 300

POM

/PVD

F

Dif

fere

ntia

l pre

ssur

e ba

r

Dif

fere

ntia

l pre

ssur

e ba

r

Temperature °C Temperature °C


Body PN 40

Body PN

003005- 10050 150 200 250 3500

20

40

10

30

50

DN 65 - DN 100

PEEK

PTFE/

carbon

PTFE/

glassPTFE

PVD

F

POM

UH

MW

PE

PEEK

16

DN 15 - DN 50

Body PN 40

50

40

30

10

20

0 POM

/PVD

F

PEEK

UH

MW

PE

POM

PVD

F

PTFEPTFE / glass

PTFE/

carbon

PEEK

2000 0530510010505- 250 300

POM

/PVD

F

Dif

fere

ntia

l pre

ssur

e ba

r

Dif

fere

ntia

l pre

ssur

e ba

r

Temperature °C Temperature °C


Body PN 40

Body PN


Allpressureandtemperaturespecificationsaremaximumapplicationlimits,whichareinfluencedbytheinteractionofallapplication factors. Therefore, without technical design and without our confirmation,thespecificationsarewithoutcommitment.


TECHNICAL DATAFlanged ball valve | type FG

AdvantagesReliablechemicalresistanceduetoPFA-liningontheinside–stainless steel on the outside

High diffusion-resistance due tothick-walled lining

Full bore

Minimum contamination due tooptimised/reduced cavity

Directmountingofactuators– safeandefficient–duetointerfaceaccordingtoENISO5211

VDI 2440EPDM

BALL VALVES

FLANGED BALL VALVEStainless steel | PFA-lined | type FGT

1 Automation · StandardmountingflangeaccordingtoENISO5211· Direct actuator mounting without interruption of the stem· Pneumatic, electrical or manual actuation possible

2 Safety· Low-maintenance due to spring-loaded V-rings madeofPTFE

· Anti-blowout stem· Optional:TA-Luft

3 Stem and ballBall and stem are PFA-lined for maximum protectionagainst aggressive media.

4 Lining Thick-walled designed PFA-lining (3 mm), dimensionally stable, connected with the body and highly diffusion- resistant.

5 Body seal Safe, labyrinth-shaped sealing of the body halves duetotheliningmaterial.Noseparatebodysealnecessary.

6 Seat ringCompletely leak-tight in the bore due to the special formofthePTFEseatrings.Thepreloadoftheseatrings causes a spring effect, which results in a reliable sealing in all pressure ranges.

1

2

3

5

6

4

Two-piecestainless-steelballvalve–ideally and cost-effectively prepared for the automationaccording to your requirements


TECHNICAL FEATURESFlanged ball valve | stainless steel | PFA-lined | type FGT

* Wear parts (seal kit)**FromDN65bodymadeofsteelepoxycoated,stainlesssteeluponrequest Othermaterialsavailable

Pos. Designation Werkstoffe

1 Body** 1.4408/PFA

2 Partial body halves 1.4408/PFA

3 Ball 1.4408/PFA

4 Stem 1.4313 / PFA

5* Seat ring PTFE

6* Packing PTFE

7 Glandflange 1.4308

8 Gland 1.4301

9 Disc spring washer 1.4310

10 Hexagon screw Stainless steel A2


12 Hand lever 1.4308

13 Case 1.4305


15 Stop screw Stainless steel A2

Parts list

Type FGT PFA-linedflangedballvalveDN15–100PN10–PN40/class150withfullbore

Thematerialcombinationstainlesssteel1.4408**ontheoutsideandPFAfluoropolymerasliningcomingintocontactwith the medium ensures a very good chemical resistance andtheexternalcorrosiveinfluencesarealsoconsidered.TheinterfaceaccordingtoENISO5211allowsacost- effective automation and the direct mounting of actuating elements and actuators.**FromDN65bodymadeofsteelepoxycoated,stainlesssteeluponrequest

Technical dataLining of body, ball and stem:PFA

Mounting flangeENISO5211

Face-to-face dimensionEN558line1(DIN3202-F1)

Flange connectionEN1092,PN10-PN40ASMEB16.5–Class150

BALL VALVES

THE TYPESFlanged ball valve | stainless steel | PFA-lined | type FGT

-50 0

Temperature °C

10050 150 200 2500

20

40

10

30

50

Dif

fere

ntia

l pre

ssur

e ba

r

Body


DN NPS A ø B ø C ø D E F ø G H L kg

PN10-40 Class150 PN10-40 Class150

15 ½" 160 65 60,5 17 4 x 14 4x15,7 53 102 95 58 130 2,5

20 ¾" 160 75 69,9 20 4 x 14 4x15,7 56 104 105 65 150 3,3

25 1" 175 85 79,2 25 4 x 14 4x15,7 67 120 115 65 160 4,2

32 1 ¼" 175 100 88,9 32 4x18 4x15,7 72 125 140 75 180 5,7

40 1 ½" 220 110 98,6 40 4x18 4x15,7 83 140 150 85 200 7,3

50 2" 220 125 120,7 50 4x18 4 x 19,1 91 147 165 100 230 10

65 2 ½" 251 145 139,7 65 4x18 4 x 19,1 106 164 185 77 290 17,2

80 3" 251 160 152,4 80 8x18 4 x 19,1 115 177 200 81 310 20,7

100 4" 315 180 190,5 100 8x18 8x19,1 130 192 220 92 350 32

Allpressureandtemperaturespecificationsaremaximumapplicationlimits,whichareinfluencedbytheinteraction ofallapplicationfactors.Therefore,withouttechnicaldesignandwithoutourconfirmation,thespecificationsare without commitment.



TECHNICAL DATAFlanged ball valve | stainless steel | PFA-lined | type FGT

AdvantagesMaintenance-free and self-adjusting sealing

No necessity for gland packing

Bidirectional tight shutoff

Smooth-running even after long downtimes

High resistance against water hammer

Locking of the plate in close position

Variety in actuation: hand wheel, hand lever, sprocket, chain wheel, bevel gear, electric actuator, pneumatic and hydraulic cylinder

KNIFE GATE VALVES

KNIFE GATE VALVESeries Domino

1 Maintenance-free and self-adjusting The COMPACT cross seal (double seal lip profile) prevents leakage to the outside caused by the plate. The seal can be readjusted at any time without interrupting the working process.

2 Bidirectional tight shutoff The valve closes pressure-tightly due to its elastic seat that is chambered and inte-grated in the body. Its pre-tensi-oned installation guarantees high leak tightness.

3 Self-cleaning effect The valve cleans itself by flush-out corners that are part of the body as well as a cut-ting edge underneath the gate (5). Both features ensure that the sealing is flushed when the valve closes.

4 Total absence of residuesThe interplay of the cutting edge of the plate with the one of the lower body allows the media to be cut with neither solids nor fibres to remain in the sealing zone.

5 Segmental arched profile of the plate prevents solids and fibres from being trapped between the plate and sealing while closing the valve.

6 Metal guide Due to the design of the valve the plate is guided by the metal guide in the rear body only. Thus the round seal has a sealing function only, without any need to support the guiding of the plate.

7 High resistance to corrosion due to powder coated bodies and mounting parts.

Maintenance-free and self-adjusting COMPACT cross seal

34

5

6

7

1

2


TECHNICAL FEATURESKnife gate valve | series Domino

COMPACT cross seal

Seat sealing

Cutting edge

Flushing corner

Plate guiding

The design of the Domino-knife gate valves fulfils the users‘ highest requirements:

The maintenance-free COMPACT cross seal (double seal lip profile) guarantees tight shutoff and can be adjusted without interrupting the working process.

The self-cleaning effect is achieved by flush-out corners in the body and the cutting edge underneath the gate. Solids and fibres are cut by the cutting edge before tightening is done against the elastic seat. The guidance of the gate is interrupted on stroke length, thus dirt can be ejected.

Bidirectional shutoff is achieved by the lateral gate surfaces and the elastic seat which is integrated in the body. The seat is chambered and prestressed mounted. The high finish of the guide- and sealing surface at both sides guarantees long service and tight shutoff. The lateral guidance of the gate prevents the gate from fluttering in either of the flow directions or in throttle positions.

KNIFE GATE VALVES


Pre-tensioned and self-adjusting COMPACT cross sealing

Round seal in the gate

Material: Solid elastomer profile (NBR, EPDM, FPM, MVQ) The necessary compression is absorbed in the lateral grooves. An inevitable abrasion is compensated by the high degree of spring effect, i.e. there is a natural permanent preload from the sealing itself. As the sealings can be moved freely, a higher internal pressure causes a higher contact pressure at the same time.

Lower sealingThe arched profile of the plate as well as both cutting edges– the one from the body and the one from the plate – allowa total absence of residues, which are totally flushed awayfrom the round seal when the valve is closed. This way leakage is to be prevented.

Lateral sealingDue to the design and functionality there is a small contactsurface between the sealing and the plate only. Thus onlysmall operating force is needed to move the plate. Further-more, the resistance against possible pressure shocks and blows is given by metal supports.

COMPACT cross sealing

Body

Plate

Rear body

Plate

Round seal

Scraper in compact

cross seal groove

Scraper in separate groove,

spring loaded

Front body

lower sealing lateral sealing with scrapers


DETAILED SOLUTIONSKnife gate valve | series Domino

Type SD 1 – AT 100 DN 100 – DN 400

Wafer type knife gate valve for installation between flanges, from size DN 250 onwards also available as lug type execution for flanges acc. to EN 1092-1 / PN 10. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjus-ting COMPACT cross seal, no necessity for gland packing – maintenance-free. Self-cleaning flush-out corners with cutting edge in the lower body area.

Face-to-face dimensionaccording to EN 558-1 line 20 (DIN 3202 K1)BodyGG25, EN GJL-250CoatingEKB, both inside and outsideColour RAL 5010PlateStainless steel 1.4301 or 1.4571Sealing NBR (EPDM, FPM, PTFE,ceramic fibre etc.)

Type SD 5 – AT 150 DN 50 – DN 400 Stainless steel execution

Wafer and lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 10. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjus-ting COMPACT cross seal, no necessity for gland packing – maintenance-free. Self-cleaning flush-out corners with cut-ting edge in the lower body area.

Face-to-face dimension according to EN 558-1 line 20 (DIN 3202 K1) Body Stainless steel 1.4408Plate Stainless steel 1.4571 hard chrome- platedSealing NBR (EPDM, FPM, PTFE,ceramic fibre etc.)

Type SD 7 – AT 200DN 50 – DN 1500

Lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 10. DN 200-DN 400 also available in PN 16. Also suitable for dead-end service. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjusting COMPACT cross seal, no necessity for gland packing – maintenance-free. Self- cleaning flush-out corners with cutting edge in the lower body area.

Face-to-face dimension according to EN 558-1 line 20/16(DIN 3202 K1/K3)Body GG25, EN GJL-250/GGG 40,EN GJS-400-15, stainless steel 1.4408CoatingEKB, both inside and outsideColourRAL 5010PlateStainless steel 1.4301, 1.4571, 1.4462 etc.Sealing NBR (EPDM, FPM, PTFE,ceramic fibre etc.)

KNIFE GATE VALVES

THE TYPESKnife gate valve | series Domino

Type SD 3 – AT 300 DN 100 – DN 300High pressure execution

Up to 40 bar operating pressure, e.g. for dewatered sewage sludges or biomass. Lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 10-PN 40. Also suitable for dead-end service. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjus-ting COMPACT cross seal, no necessity for gland packing – maintenance-free. Self-cleaning flush-out corners with cutting edge in the lower body area.

Face-to-face dimensionaccording to EN 558-1 line 16 (DIN 3202 K3)BodyGGG 40, EN GJS-400-15Coating EKB, both inside and outsideColour RAL 5010PlateStainless steel 1.4301, 1.4571, 1.4462 etc.Sealing NBR (EPDM, FPM, MVQ)

Type SD 4 / SD 9 – AT 400 / AT 416 DN 40 – DN 1200

With completely round bore – with a special design according to customer requests possible. Lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 2,5-PN 40. Special pressure classes, lengths and nominal sizes possible. Also suitable for dead-end service (SD 9). Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjusting COMPACT cross seal. Optional: secondary sealing, readjustable from the outside. Cutting edge in the lower body area.

Face-to-face dimensionaccording to e.g. EN 558-1 line 16/25/16(DIN 3202 K1/K2/K3)BodyGGG 40, EN GJS-400-15, steel, stainless steelPlate Stainless steel 1.4301, 1.4571, 1.4462 etc.SealingNBR (EPDM, FPM, MVQ, etc.)

Type SDR – AT 200 R DN 50 – DN 1200Control knife gate valve

With optimised control plate designed for precise air volume control with almost linear control function, e.g. for ventilation tasks in sewage installation plants. Lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 10. Also suitable for dead-end service. Two-piece body, bi-directional tight shutoff. Metal guided plate, locked when closed. Self-adjus-ting COMPACT cross seal, no necessity for gland packing – maintenance-free.

Face-to-face dimensionaccording to EN 558-1 line 20 (DIN 3202 K1)BodyGG25, EN GJL-250/GGG 40,EN GJS-400-15CoatingEKB, both inside and outsideColourRAL 5010PlateStainless steel 1.4301, or 1.4571Sealing NBR (EPDM, FPM, PTFE)


Type SD 75 – AT 750 DN 50 – DN 500Through conduit executionLug type knife gate valve for installationbetween flanges acc. to EN 1092-1/ PN 2.5-PN 160. Also suitable for dead-end service. High pressure and throughconduit execution up to PN 160 for dewatered sewage sludges or biomass.Completely round and smooth bore,special lengths and nominal sizes possible. Two-piece body, bidirectional tight shutoff. Metal guided plate embedded protected against pressure shocks. COMPACT cross seal. Optional: secondary sealing, readjustable from the outside.

Face-to-face dimensionaccording to e.g. EN 558-1 line 16/25/16(DIN 3202 K1/K2/K3),BodySteel, stainless steel V2a or V4APlate Stainless steel 1.4301, 1.4571, 1.4462 etc.Sealing NBR (EPDM, FPM, MVQ, etc.)

Type SD 6 – AT 600 Rectangular execution

Lug type knife gate valve for installation between flanges acc. to customer spe-cifications or manufacturer standard. Also suitable for dead-end service. With a special design and different sizes ac-cording to customer requests possible. Completely water- and air-tight version for liquids, sludges and granulated solids. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjusting COMPACT cross seal to the atmosphere. Optional: secondary sealing, readjustable from the outside. Cutting edge in the lower body area.

Face-to-face dimensionaccording to customer requestsBodySteel, stainless steel V2 or V4APlateStainless steel 1.4301, 1.4571, 1.4462 etc.Sealing NBR (EPDM, FPM, MVQ,ceramic fibre, PTFE etc.)Clear widthsUpon request

Type SD 2 – AT 200 FDN 200 – DN 1000Solid material execution Lug type knife gate valve for installation between flanges acc. to EN 1092-1/ PN 10. Also applicable as wafer type and suitable for dead-end service. ATEX approved for category II 1D/2GD c. For granulated solids, such as carbon dust. Two-piece body with conically designed plate bed milling groove. Lateral plate guidance interrupted alternately in the front and rear body. Bidirectional tight shutoff in both flow directions.

FlangeDIN EN 1092-1 PN 10Face-to-face dimension DIN EN 558 line 20Body EN-GJL-250 (GG 25), narrowed in the boreCoating EKB, both inside and outsideColour RAL 9005, electrically conductivePlate 1.4301 or 1.4571ScraperPTFE with MVQ supportSealingCeramic fibre, NBR, EPDM, FPM

KNIFE GATE VALVES

THE TYPESKnife gate valve | series Domino

Type SD 8 – AT 500/AT 510 F DN 400 – DN 700 Solid material executionLug and wafer type knife gate valve for installation between flanges acc. to EN 1092-1/PN 10. Also suitable for dead-end service in vertical pipelines and below silos. ATEX approved for category II 1/2 D c TX. One-piece body with fun-nel-shaped outlet for the prevention of product deposits, sealing on one side, flushing connections in the body at the end of the plate stroke allows the closing of the standing product column.

FlangeDIN EN 1092-1 PN 10Face-to-face dimensionManufacturer standardBodyEN-GJS-400-15 (GGG 40) CoatingEKB, both inside and outsideColour RAL 9005, electrically conductivePlate1.4301 or 1.4571SealingNBRPackage PTFE / NBR

SDH – AT 550FSolid material execution

For pharmaceutical and chemical in-dustries. Lug and wafer type knife gate valve for installation between flanges acc. to EN 1092-1/PN 10. Also suitable for dead-end service in vertical pipelines and below silos. Two-piece body with funnel-shaped outlet for the prevention of product deposits, sealing on one side, flushing connections in the body at the end of the plate stroke allows the closing of the falling or standing product column.

FlangeDIN EN 1092-1 PN 10 Face-to-face dimensionManufacturer standardBody1.4408, completely high-gloss polished on the insidePlate1.4401 high-gloss polishedSealingMVQ (FDA-conform)Package LATTYflon 3206SO with quad ring MVQ (FDA-conform)Nominal sizesUpon request

SD65 – AT 650 Rectangular execution for solid materialsWith a special design and different sizes according to user requests possible. Knife gate valve for solid materials applications for installation between flanges. Also suitable for dead-end service in downpipes or below silos. Flanges according to customer spe-cifications or manufacturer standard. Two-piece body, sealing on one side. Metal guided plate, locked when closed. Self-adjusting COMPACT cross seal. Optional: secondary sealing, read-justable from the outside. Cutting edge in the lower body area. Face-to-face dimensionAccording to customer requestBodySteel or stainless steel V2 or V4APlateStainless steel 1.4301, 1.4571, 1.4462 etc.SealingNBR (ceramic fibre/graphite, PTFE,EPDM, FPM, MVQ, etc.)Clear widthsUpon request


Body

Material Temperature

22 Grey cast iron EN-GJL-250 - 10 °C up to max. 250 °C

23 Ductile iron EN-GJS-400-15 - 10 °C up to max. 350 °C

44 Cast steel GS C25 - 40 °C up to max. 450 °C

45 Steel ST52/ST37 - 40 °C up to max. 450 °C

66 Stainless steel 1.4408 - 50 °C up to max. 500 °C

Further materials such as aluminium, Hastelloy, etc. possible

Plate

Material

63 Stainless steel 1.4301

66 Stainless steel 1.4571

31 Stainless steel 1.4571 polished

64 Duplex stainless steel 1.4462


Available materials depending on the types and maximum operating temperatures

The knife gate valve “System DOMINO” is preferably used for sludge and water treatment, substrate appli-cations in biogas plants and process technology. Media containing sludge or fibres are controlled reliably. The knife gate valve seals pressure-tightly in both flow directions! The versatile designs and actuator versions provide our customers and interested parties with a well-developed and sophisticated product range to benefit from.

KNIFE GATE VALVES


SealingEPDM (Ethylene-Propylene-Terpolymer)Operating temperature: - 20 °C to + 130 °C

NBR (nitrile rubber)Operating temperature: - 20 °C to + 110 °C

MVQ (silicone rubber)Operating temperature: - 30°C to + 200°C

FPM (fluorine elastomer)Operating temperature: - 10 °C to + 180 °C

FEP coated FPMOperating temperature: - 26 °C to + 200 °C

PTFE (Polytetrafluorethylene)Operating temperature: - 200 °C to + 220 °C

Ceramic fibre/graphiteOperating temperature: - 50 °C to + 500 °C

SD1 – AT 100 SD5 – AT 150 SD7 – AT 200 SDR – AT 200R

DN 100 – DN 150: 10 barDN 200 – DN 300: 6 barDN 350 – DN 400: 4 bar

DN 50 – DN 150: 10 barDN 200 – DN 300: 6 barDN 350 – DN 400: 4 bar

DN 50 – DN 80: 16 barDN 100 – DN 300: 10 barDN 350 – DN 400: 6 barDN 450 – DN 800: 4 barDN 900: 3 barDN 1000: 2.5 barfrom DN 1200: 2 barHigher operating pressures are possible depending on the medium

DN 50 – DN 300: 10 barDN 350 – DN 400: 6 barDN 450 – DN 800: 4 barDN 900: 3 barDN 1000: 2.5 barDN 1200: 2 bar

SD3 – AT 300 SD4/SD9 – AT 400/AT416 SD75 – AT 750 SD6 – AT 600

DN 100 – DN 250: 40 barDN 300: 25 bar(for de-watered media)

Standard version up to 16 barHigher operating pressures are possible depending on the medium

Up to 160 bar(for de-watered media)

Standard version up to 2 barHigher operating pressures are possible depending on the medium

DN 200 – DN 300: 6 bar SD8 – AT 500F/AT510F SD65 – AT 650F

Standard version max. 1 bar(with solids as medium)Static:DN 200 – DN 300: 10 barDN 350 – DN 400: 6 barDN 450 – DN 600: 4 barDN 700 – DN 900: 3 barDN 1000 – 2.5 bar

Standard version max. 1 bar(with solids as medium)Static: max. 3 bar

Max. 2 bar depending on the no-minal size and the operating con-ditions (consultation necessary)

Maximum working pressure


TECHNICAL FEATURESKnife gate valve | series Domino

The pneumatic end position damping in closing direction allows a gentle closing of the gate valve plate into the seat sealing of the gate valve in the bottom area (lower sealing in the shut-off).

During the closing process, the exhaust air is shut-off within the last centimetres of the stroke via the air connection by retracting the lower plate of the piston into the damping ring.The residual volume is only released via the throttle passage from this moment on.

In this way, a considerable higher counter-pressure is built- up for a short time in the air chamber of the outflowing air, which counteracts the movement. The speed of the cylinder piston and thus also the closing speed of the gate valve plate is reduced significantly within a short period of time.

air supply during closing process

throttlepassage

damping ring

exhaust air

piston

KNIFE GATE VALVES

KNIFE GATE VALVESActuations

Control of the pneumatic actuators via solenoid valves, 3/2 ways, 5/2 ways, 5/3 ways with blocked intermediate position, quick exhaust and booster valves, ATEX, SIL.

Indication of the end position OPEN / CLOSE via proximity sensors, wiring in terminal boxes possible, ATEX and ASi-Bus versions upon request.

Hand wheelHand-wheel for non-rising stem made of cast iron GGG 40 – JS 1030, diameter 150 mm – 500 mm. Also available with ball handle upon request.

Hydraulic cylinderDouble-acting, for control pressures up to 250 bar. Also available with hydraulic end position indicator and distance measuring system for continuous position feedback.

Electric actuatorFor rising stems, applicable for both control or regular operation.

Indication of the end position OPEN / CLOSE via mechanical proximity switches with roller swivelling lever, open mounting, wiring in terminal boxes possible, optionally also for Exatmospheres.

DOMINO pneumatic cylinderDouble-acting, air pressure 6-10 bar,cylinder body, cap and bottom made of piston plate made of steel or aluminium,

piston aluminium (optionally stainless steel), made of stainless steel 1.4104, optionally 1.4571.

DOMINO pneumatic cylinder

Piston diameter Standard strokes Compressed air connections

80 mm 51 mm, 66 mm, 81 mm R ¼“

100 mm 102 mm, 127 mm R ¼“

160 mm 152 mm, 202 mm R ¼“

200 mm 202 mm, 252 mm R ¼“

250 mm 253 mm, 303 mm R ¼“

300 mm 352 mm, 402 mm, 452 mm, 502 mm, 602 mm, 702 mm

R ½“



MOUNTING PARTSActuations and automation

AdvantagesSandwich construction for installationbetween flanges PN 6 – PN 40

Backflow is reliably prevented due to the spring

Low weight

Low noise

Low pressure loss due to optimised opening cross section

Any mounting position possible

High reliability

Long service life

NON RETURN VALVES

NON RETURN VALVESSeries RF | short length

RF 8686TKPTFE executionDN 15 – DN 50 PN 10/PS 10 DN 65 – DN 80 PN 10/PS 6 DN 100 – DN 125 PN 10/PS4

Technical data MaterialsBody PTFE carbonBack-up ring 1.4301Valve plate PTFE carbonSpring holder PTFE carbonSpring 1.4571 FEP-coatedValve seat PTFE carbonSpecial materials upon request

Working temperature- 30 °C to + 180 °C

Face-to-face dimensionDIN EN 558-1 line 52 (DIN 3202/K5)

RF 6666 Soft seatedDN 15 – DN 100 PN 6 – PN 40 DN 125 – DN 150 PN 10/16

Technical data MaterialsBody 1.4408Valve plate 1.5471Spring holder 1.4571Spring 1.4571Special materials upon request

Sealing EPDM, NBR, FPM, FEP/FPM



TestDIN EN 12266-1 leakage rate A

RF 6666MMetal seatedDN 15 – DN 100 PN 6 – PN 40 DN 125 – DN 150 PN 10/16

Technical data MaterialsBody 1.4408Valve plate 1.5471Spring holder 1.4571Spring 1.4571Special materials upon request



TestDIN EN 12266-1


THE TYPESNon return valve | series RF | short length

The company GEFA Processtechnik GmbH Dortmund is a special manufacturer in the areas of industrial valves, filtration technology as well as measuring

and control technology. The company was founded in 1964 and was one of the first companies which had three-piece ball valves, centrical soft-seated

butterfly valves as well as pneumatic piston actuators in their product range. In the area of filtration technology, GEFA introduced an innovative product line

on the German market. The company is certified according to DIN EN ISO 9001, BS OHSAS 18001 and ISO 14001 and offers products of maximum reliability

and safety. We also have a wide product range available for special applications. The extensive storage (5 million Euro) ensures short delivery times.

Legal form: Limited liability company

Capital stock: 1.54 million Euro

Managing director: Gerd Ruhland

Foundation and development: The company was registered as limited liability company in the commercial register on 15.09.1965

Sector and products: Industrial valves – measuring and control technology – filter technology

Employees: 95 employees

Turnover: approx. 25 million Euro

Business premises: The office and company building (Germaniastraße 28 in Dortmund) is owned by the company, office building/

factory hall and warehouse 5,450 square metres, company premises approx. 13,000 square metres

Stock: approx. 6 million Euro

Germaniastraße 28

44379 Dortmund

PO box 700110

44371 Dortmund

T + 49 231 61009-0

F + 49 231 61009-80

www.gefa.com

[email protected] As

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Gefa Prospekt Armaturentechnik Teil 01 Klappen engl RZ · DIN EN 12266 P10 P11 P12 Leakage rate A Type K 19 DN 350 – DN 500 Technical data Wafer type butterfly valve for installation