VALVE GUIDE FOR THE PULP & PAPER INDUSTRY
BULLETIN 97.01-01JULY 2020VALVE GUIDEFOR THE PULP &PAPER INDUSTRY
The DeZURIK DifferenceThroughout our 250 years of combined history, DeZURIK, APCO, and HILTONhave been recognized worldwide for collaborating with customers to designand engineer valves that provide superior performance and value. Eachcompany was founded by an innovator who set out to solve a customer’sproblem application.DeZURIK’s founder, Matt DeZURIK, started designing products for the SartellPaper Mill in 1925 that included knot boring machines, consistency transmittersand shower pipes. When he noticed that valves weren’t able to seal due topitch build-up, he invented the first Eccentric Plug Valve – a design still in usetoday, dutifully solving sealing problems worldwide.Today, the DeZURIK, APCO, and HILTON brands continue the tradition ofpartnering with our customers in the Pulp & Paper industry to provide thenewest innovations in control, gate, plug, butterfly, automatic air and checkvalves. Our vision is to deliver exceptional value to our customersby applying our valve and problem-solving expertise to improve theiroperational performance.DeZURIK’s original Eccentric PlugValve, developed in 1925 for theSartell Paper Mill to solve a problemwith pitch build-up.Full-Featured Valves for Today ApplicationsDeZURIK recognizes the importance that control valves can play inprocess control performance and productivity. That’s why DeZURIKis dedicated to control valve testing. Regulating critical aspects ofcontrol valve performance such as accuracy, hysteresis, deadbandand response time ensures that DeZURIK control valves provideoptimum performance and help reduce costs.Ruggedly Designed for Maximum ValueDeZURIK engineers spend many hours in the field listeningto customers so they fully understand the intricacies of eachapplication and incorporate that knowledge into each valve design.Using the latest advancements in technology such as SolidModeling, Finite Element Analysis, 3D Rapid Prototyping andComputational Fluid Dynamics, DeZURIK engineers create valvesthat offer superior installed performance.DeZURIK Knife Gate Valves and V-Port Ball Valvesare widely used in pulping and stock prep operationsthroughout the mill.Quality Centered ManufacturingDeZURIK’s dedication to quality isdemonstrated in all aspects of the businessbut foremost in our manufacturingcapabilities. Our state-of-the-art CNCmachining centers and large valvefabrication facilities allow us to producein excess of 100,000 valves annually thatrange in size from 1/2" to 144" and weighup to 40 tons. DeZURIK’s dedication tooutstanding practices is ingrained in itsculture, and exemplified in our qualitysystem. DeZURIK has been certified to theISO 9001 standard since 1996.DeZURIK High Performance Butterfly Valves are ideally suited for a widevariety of services including water, steam, liquor and other corrosive liquidsand gases.2 2020 DeZURIK, Inc.www.dezurik.com
2-Year Manufacturer’s WarrantyTo further demonstrate our confidence in our productquality, DeZURIK offers a 2-Year Manufacturer’sWarranty as standard - double the length of timeoffered by most other manufacturers.Wide Selection of Valve StylesDeZURIK has a wide variety of valve styles to meetthe application requirements of the pulp and paperindustry. DeZURIK manufactures valves for basisweight control, paper stock, liquor, steam, dilutionwater control and others. Valve styles that canhandle everything from abrasive Kaolin clay slurriesto recycle trash. The application guide charts onthe following pages serve as a starting point in thevalve selection process. For additional informationor to contact your local representative, visit us atwww.dezurik.comApplication Expertise You Can TrustThe application expertise of DeZURIK technical salesrepresentatives, located throughout the world, willensure you receive the personalized and completeservice you need to keep your process performingat optimum levels. Our independent representativesare backed by over 500 DeZURIK employees atour factories, service centers and offices whoseprimary goal is customer satisfaction and maintaininglong-term relationships.DeZURIK’s Precision Electric Basis Weight Control Valve isspecifically designed for critical paper stock control, and is usedfor basis weight and head box level control applications.DeZURIK’s 3-Way Tapered Plug Valves are designed for throttlingand diverting applications in refiner stock control applications.Local Service and SupportDeZURIK Service Centers and local representativesmaintain local inventory for quick delivery. ServiceCenter and field service capabilities includeautomation, repair, reconditioning, emergencyservice, on-site scheduled maintenance andaccuracy testing.DeZURIK’s versatile VPB V-Port Ball Valves are designed forhighly accurate control of paper stock, in addition to other clean,dirty or corrosive liquids and gases.www.dezurik.com3
DeZURIK Product Applications in the Paper IndustryIMPREGNATIONVESSEL #2BY-PASSEDDOOWRDHAEPINKRAFTPULPIPCH ESPILCHIPUNLOADINGHIGHDENSITYCHESTSTOCK PREPDIGESTER#2EPINIMPREGNATIONVESSEL AFTPULPCHIP TOWERCHIP BINCHIP SILOSFILTRATETANKLIQUOR FEEDTANKSTEAMING IGH-PRESSURE FEEDEREVAPORATORSPOWERHOUSEPREVAPORATORWEAKLIQUOR TANKSTACKREFINERKILNSTACKMACHINECHESTPAPERMACHINE #2GREEN LIQUORCLARIFIERPRECIPITATORSRECOVERYEPINPUBL LPIEA NGCH &INGDREGSWASHERLIMEKILNRECYCLE FIBERPAPERMACHINE #1OCC BALESTORAGEPAPERMACHINE #3HYDRAPULPERPULPNGWHITE LIQUORCLARIFIERMAIKEER-DOWNTOMA PAPCH ERINESAKLIME .dezurik.com4
LegendLever On/OffKGVKnife Gate ValveKLSHandwheel On/OffKGC-MDMaximum Duty Knife Gate ValveO-PORT- Sand Separator- HD CleanerControlVPBV-Port Ball Valve- Paperstock Control Valves- Dilution Water ControlLevel Sensor Isolation Valve- Isolation Control- Blocking ValvesO-Port Gate Valve- High Consistency Paperstock- Trash HandlingBOSResilient SeatedButterfly Valve- Vacuum Service Air and WaterCylinder On/OffBHP- Vacuum and Air Control- Water and Condensate- Stock Shut-Off3-Way Handwheel On/Off3-Way ControlHigh PerformanceButterfly ValveECCEccentric Plug Valve- Dilution Water Control- Clarifier and Thickener EffluentPTW3-Way Plug Valve- Refiner Stock ControlPPEPrecisionElectric Valve- Paperstock Feed tothe Paper MachineRCVRotary Control Valve- Steam Control- Abrasive Media Control- Dilution Water Controlwww.dezurik.com5
Batch Digesters / Direct HeatingWood ChipsBlow Back ValveDigesters are used to break down the wood chipsand soften their composition. To accomplish this,steam is added to cooking vessels along with thechips, white and black liquors. The temperature isincreased until the chips reach a point where theystart to breakdown. At this point, the blow valve isopened and the chips are blown into a tank wherethey impact the wall and break into fibers.CappingValveRCVGas Off ValveLiquorFeedLineRCVHandwheel On/OffControlRCVBATCHDIGESTERRotary Control ValveLiquorHeaterValveTo Blow TankBlow Valve150 psiSteamRCVwww.dezurik.com6
Batch Digester / Indirect HeatingBlow Back ValveWood ChipsGas Off ValveRCVCappingValveRCVLIQUOR TOPDISTRIBUTORDigesters are used to break downthe wood chips and soften theircomposition. To accomplish this,steam is added to cooking vesselsalong with the chips, white and blackliquors. The temperature is increaseduntil the chips reach a point where theystart to break down. At this point, theblow valve is opened and the chips areblown into a tank where they impactthe wall and break into fibers.DoubleSeatedBallValveHEATEXCHANGERLiquor Heater Valve150 psi andwheel On/OffControlRCVRotary Control ValvePUMPDoubleSeatedBall Valves7www.dezurik.com
Kamyr Continuous DigesterTOP SEPARATORFor Kamyr digester valve applicationscontact DeZURIK Application Engineering.DIGESTERRecirculationSteamChipsBlack LiquorTo RecoverySteamSteamingVesselSteamSand FilterPulp StockTo DiffuserKGC-MDKGC-MDWhite LiquorDumpCHIP CIRCULATIONWITH SAND FILTERKGC-MDWash LiquorIMPREGNATIONVESSELKAMYRMaximum Duty Knife Gate Valvewww.dezurik.com8
Turpentine Recovery SystemVaporReliefSight GlassRCVSEPARATORSEPARATORBlack LiquorCold WaterVPBBHPBlackLiquorCONDENSERCondensateWarm WaterVPBBHPDIGESTERRCVTurpentineTo SewerRotary Control ValveECCVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveECCEccentric Plug ValveDECANTERVPBWaterVPB BHP ECCVPBWaterOverflowTurpentineTo CarsTurpentineHandwheel On/OffControlSTORAGE TANKTurpentineWaterWaterwww.dezurik.com9
Thermomechanical Pulping Process (TMP)Steam Recovery System- Fresh steam is typicaly 15-30 psig, 250-280º F- Process steam is typically 60-75 psig, 300º F- Some fibers are present in process steamRCVFreshSteamCYCLONEChipsVPB RCVExhaustFeedProcessSteamSteam And First Stage PulpVPBRCVVPBKGVRCVKGVChip PresteamingREFINERHandwheel On/OffVPBREFINERTrimDilutionValveControlKGVKnife Gate ValveVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveECCEccentric Plug ValveRCVRotary Control ValveVPBVPBBHPRCVVPBVPBECCECCPlug WiperWaterFreshSteamIn this method of pulping, logs are mechanicallychipped and are softened with steam. The chips arethen broken down into fibers in a erREFINEDSTOCKCHESTVPBKGVwww.dezurik.com10
Chemical - Thermomechanical Pulping (CTMP)Clean Steam to Paper MachinesVPB RCVFirst the wood is mechanically chipped. Thechips are then heated and chemically treated toreduce the bonding properties of the fiber’slignin and to soften them. Two chemicalprocesses are used: the kraft process (alkaline)and sulfite process (acidic).ScrubberReboilerSteamVPB RCVVPBRCVChemicalsChipsVPBVPBRCVVPB RCVFeedCYCLONERCVChip PresteamingLever On/OffHandwheel utionValveSteamVPB RCV ECCVPBTrimDilutionValveVPBKGVVPBECCKnife Gate ValveV-Port Ball Valve1st STAGE REFINERDilutionValveEccentric Plug ValveRCVECCDilutionValveVPBRotary Control ValveKLSLevel Sensor Isolation ValveTo MachineSTOCKCHESTRCVECCRCVVPB RCV ECC2nd ww.dezurik.com11
Brown Stock WashingVPBBHPBrown Stock WashersDeknotterHot Wash WaterBlow HeatRecoveryThick Stock PumpBrown StockTrimDilutionValveBLOW TANKBlowLine FromDigestersVPBVPBVPB VPBRCVKGOBHPECCHIGHDENSITYSTORAGEKGVVPB RCV ECCKGVKGVImpellerKGVTo Blow onsistencyTransmitterWaterVPB RCV ECCVPBVPBRCVBHPBlack Dilution LiquorHandwheel On/OffTrimDilutionValveBHPHigh PerformanceButterfly ValveControlECCEccentric Plug ValveCylinder On/OffRCVRotary Control ValveKGVKnife Gate ValveKGO O-Port Gate ValveVPBV-Port Ball ValveVPBTo BleachPlant orScreen RoomAfter the stock is injected at high velocity into the blow tank and the chips are broken downinto fibers, a deknotter separates the chips and knots. The knots are then discarded or sentback to the digesters for further processing. The pulp (cooked fibers) is washed to removeresidual liquors that will contaminate the process and also to recover the maximum amountof chemicals. The spent chemicals that are recovered go to seal boxes and then arereclaimed for later use. The washed pulp is pumped into high-density storage tanksand from there it goes to the bleach plant or to the screen room.www.dezurik.com12
Recovery BoilerSteamThe highly concentrated black liquor is sprayedinto the recovery boiler and the heat generatedfrom this is used for making steam to run otherparts of the mill. The inorganic smelt that formsas the black liquor is burned flows to a smeltdesolving tank where it is cooled and desolvedin water forming unclarified green liquor.GlobeValveGlobeValveFeed WaterGlobeValveBlackLiquorTo StackRECOVERY BOILERFor recovery boilerapplications, contactDeZURIK. ityBlack LiquorFrom EvaporatorsGlobeValveControlHEATERSCylinder On/OffHandwheel On/OffVPBV-Port Ball ValveRCVRotary Control ValveECCEccentric Plug ValveO-PORTO-Port Gate ValveBlack LiquorTo RecoveryBoilerLowPressureSteamWeak WashGreen LiquorGlobeValveO-PORTVPB zurik.com13
Recaustisizing AreaLime From KilnFrom theSmelt TankO-PORTFull PortBall CCDoubleSeatedBallValveSteamRCVHot Wateror ERSFiltrateBHPTo DigesterSTORAGEO-PORTTo SewerVPB linder On/OffRCVSTORAGERCVVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveRCVRotary Control ValveECCEccentric Plug ValveTo g is the process where green liquor (sodium carbonate Na2CO3) is converted intowhite liquor (sodium hydroxide NaOH). First the green liquor is clarified to remove any dregs,then the lime (CaO) is added to form white liquor. Next, the white liquor is clarified to removelime mud (CaCO3) and is returned to the digesters for cooking wood chips. Finally, the removedlime mud is sent to the lime kiln to form lime through a high temperature reaction.O-PORTO-Port Gate Valvewww.dezurik.com14
Bleaching - Chlorine VaporizationSteamRCVRCVChlorineBall ValvesPadding AirFILTERS VAirVaporizersChlorineBall ValvesCHLORINETANK CARCHLORINETANK CARThe bleaching process uses a variety of chemicals togive the pulp its desired whiteness. Chlorine is oneof the chemicals used and requires special handling.Moisture-free air is used to fill tank cars and transferthe chlorine to the bleach plant.Lever On/OffControlVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveRCVRotary Control Valvewww.dezurik.com15
Bleach PlantSteamVPBHot WaterECCFresh l ValveThe bleaching process occurs in multiple stages. Pulp stock can be whitened by eitherbrightening or by removal of the lignin and is accomplished with the addition of chemicals.The pulp stock is washed between each stage and stored. Typical bleaching stages includechlorination, alkaline extraction, oxygen, hypochlorite, chlorine dioxide, peroxide and ozone.ControlCylinder On/OffKGVKnife Gate ValveRCVVPBV-Port Ball ValveO-PORTECCEccentric Plug ValveSTAGE 4ChlorineVPBSTAGE 3HypochloriteRCVECCSTAGE 2ECCVPBStock StorageVPBSTAGE 1 - ChlorinationVPBRCVVPBHIGH-DENSITY cyTransmitterToPaperMillO-PORTBase DilutionVPB ECC RCVRotary Control ValveO-Port Gate Valvewww.dezurik.com16
Stock Preparation and Blending OverviewDilutionWaterPaperstockPTWPTWPTWPTWPTWTo Stuff ITYSTORAGEKGVKGVREFINERSDEFLAKERSKGVFrom PulperFrom Press PitVPBKGVTICKLER B tencyTransmitterRCVDilution WaterControlVPBECCMACHINECHESTKGVVPBVPB yTransmitterRCVDilution WaterECCRCVKGVBHPFrom Couch PitFrom HighDensityStorageVPBSAVEALLSEAL CHESTKGVSAVEALLRECOVEREDSTOCK CHESTKGVVPBKGVSAVEALLFEED CHESTDilution WaterHandwheel On/OffCylinder On/OffKGVKnife Gate ValveECCEccentric Plug ValvePTW3-Way Plug ValveVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveRCVRotary Control Valve3-Way Handwheel On/Offwww.dezurik.com17
CleanersPrimary Accepts To Paper Machine Head BoxPrimary Accepts HeaderAcceptsBypassControlValvePRIMARY PVacuumBOS Relief ValveSampleECCSECONDARYCLEANERSTo SewerECCSampleVPBVACUUMRECEIVERTANKFlushing LinePrimary SupplyRejects HeaderECCLevel Control ValveOptionalBypassPAPER MACHINEWHITE WATERWELLPRIMARYPUMPVPBSECONDARYPUMPVPBPPEBasis Weight ValveHandwheel On/OffControlTERTIARYPUMPVPBNew StockFrom Machine ChestFrom Flat Box,Seal Box orSaveallPPETo SewerECCLever On/OffVPBV-Port Ball ValveBOSResilient SeatedButterfly ValvePrecisionElectric ValveECCEccentric Plug ValveBHPHigh PerformanceButterfly ValveSEAL BOXWHITE WATER PUMPPrimary, secondary and tertiarystage cleaners are used in stockpreparation to eliminate allunwanted materials.www.dezurik.com18
Paper Machine Wet EndAir Pad LineBHPVPBBOSTo ShowersVacuumSAVEALLHEADBOXHead BoxLevel ControlValveTo Dry EndWirePPESCREENSVPB AL BOXKGVTo Broke HESTSEAL BOXKGVWaterBHPPPELever On/OffKGVKLSVPBKGVBasisWeightValveVPB ECC RCVFan PumpHandwheel On/OffControlKGVKnife Gate ValveBHPHigh PerformanceButterfly ValvePPEPrecisionElectric ValveKLSLevel Sensor Isolation ValveVPBV-Port Ball ValveECCEccentric Plug ValveRCVRotary Control ValveBOSResilient SeatedButterfly ValveCylinder On/Offwww.dezurik.com19
Fourdrinier Wet EndVent To AtmosphereBHPBHPTo ShowersBOSBOSBHPSAVEALLBOSBHPBHPHEAD BOXBOSBOSVacuum PumpWaterWireVPBKGVSTUFFBOXEFFLUENT WEIRWhiteWaterTankCLEANERSSewerFrom StockProportioningMixing ChestDilution WaterVPB ECC RCVConsistencyTransmitterTo Broke alveControlSteamSEAL BOXVPBVPBVPBVPBVPB RCVMAGMETERREFINERMACHINECHESTSCREENSCouch PitVPBVPBTo DryerCouchRollWire PitKGVSEALBOXPressesFlat CCFAN PUMPTo BrokeChestConsistencyTransmitter3-Way ControlHandwheel On/OffKGVKnife Gate ValveBHPHigh PerformanceButterfly ValvePTW3-Way Plug ValveRCVVPBV-Port Ball ValveECCEccentric Plug ValvePPEPrecisionElectric ValveBOSRotary Control ValveResilient SeatedButterfly Valvewww.dezurik.com20
Basis Weight ControlCOMPUTER SYSTEMCOMPUTER SYSTEMConsistencyTransmitterSTUFF BOXHEAD BOXVPBLevel Control yTransmitterECCPPEPPEBasis Weight ValveRCVHeadboxLevel ValveKLSLever On/OffPPEPrecisionElectric ValveControlRCVRotary Control ValveVPBV-Port Ball ValveKLSECCEccentric Plug ValveLevel Sensor Isolation ValveThe basis weight valve is used to control the amount of stock to thehead box and is positioned by the mill’s Distributive Control System(DCS) or the gauging system which measures the density and thicknessof the finished sheet of paper.Basis weight control requires constant pressure and consistency to thevalve. Alternatively, this loop may be controlled by a Variable FrequencyDrive (VFD) that would not require a valve.www.dezurik.com21
Paper Machine Dryer SectionSteam To rFrom Wet EndSteam Wedge GatesCONDENSATE RETURN SYSTEMVPBVPBVPBBHPBHPBHPRCVSEPARATORRCVVPBVPB BHP MRECEIVERBHPMake UpWaterRCVThe paper machine dryer removes any residual water through evaporation as the sheet passes throughheated steam rollers. A condensate system collects water from the steam for reuse in the mill. In orderto reduce energy consumption, water is continually reused in the mill. At the dry end of the papermachine, separators pull water into the mill‘s condensate system for eventual reuse.ControlVPBV-Port Ball ValveBHPHigh PerformanceButterfly ValveRCVCondensate To MillRotary Control Valvewww.dezurik.com22
Secondary Fiber RepulpingWater HeaderSecondary fiber is any fibrous materialsbeing repulped as a raw material toremanufacture into a new product.VPBBHPVPBBHPLever On/OffO-PORTControlKGVKGVBalesTrashBase DilutionVIBRATORSCREENSSGHandwheel On/OffVPBBHP ECCTrimDilutionCylinder ERRCVECCVPBRejectsO-PORTSURGECHESTKGVSGSCREEN PLATERCVTrim DilutionECCECCRCV ECC VPBVPBBallValveDirt GC-MDSGTHICKENERConsistencyTransmitterVPBDirt ansmitterTrashVPBSTOCKCHESTBase DilutionKGVKGVKnife Gat e ValveVPB V-Port Ball ValveRCV ECC VPBBHPHig h PerformanceButterf ly ValveRCVRotary Control ValveECCEccent ric Plug ValveO-PORTO-Port Gate ValveSGKGC-MDSplit GateKGVPumpKGVMaximum Duty Knife Gate Valvewww.dezurik.com23
FacilitiesDeZURIK Corporate Headquarters and Manufacturing Facility,Sartell, MN USAEstablished in 1928, 420,000 sq. ft.DeZURIK Cambridge, Ontario, CanadaEstablished in 1961, 50,000 sq. ft.Rapid Fulfillment Center, Houston, TX, USAEstablished in 2018, 43,000 sq. ft.DeZURIK, Redmond, WA, USAEstablished in 1952, 25,000 sq. ft.Sales and ServiceFor information about our worldwide locations, approvals, certifications and local representative:Web Site: www.dezurik.comE-Mail: info@dezurik.com250 Riverside Ave. N. Sartell, Minnesota 56377 Phone: 320-259-2000 Fax: 320-259-2227DeZURIK, Inc. reserves the right to incorporate our latest design and material changes without notice or obligation.Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information onlyand should not be relied upon unless confirmed in writing by DeZURIK, Inc. Certified drawings are available upon request.Printed in the U.S.A.
DeZURIK’s original Eccentric Plug Valve, developed in 1925 for the Sartell Paper Mill to solve a problem with pitch build-up. DeZURIK High Performance Butterfly Valves are ideally suited for a wide variety of services including water, steam, liquor and other corrosive liquids and gases. DeZURIK Knife Gate Valves and V-Port Ball Valves
May 02, 2018 · D. Program Evaluation ͟The organization has provided a description of the framework for how each program will be evaluated. The framework should include all the elements below: ͟The evaluation methods are cost-effective for the organization ͟Quantitative and qualitative data is being collected (at Basics tier, data collection must have begun)
Silat is a combative art of self-defense and survival rooted from Matay archipelago. It was traced at thé early of Langkasuka Kingdom (2nd century CE) till thé reign of Melaka (Malaysia) Sultanate era (13th century). Silat has now evolved to become part of social culture and tradition with thé appearance of a fine physical and spiritual .
On an exceptional basis, Member States may request UNESCO to provide thé candidates with access to thé platform so they can complète thé form by themselves. Thèse requests must be addressed to esd rize unesco. or by 15 A ril 2021 UNESCO will provide thé nomineewith accessto thé platform via their émail address.
̶The leading indicator of employee engagement is based on the quality of the relationship between employee and supervisor Empower your managers! ̶Help them understand the impact on the organization ̶Share important changes, plan options, tasks, and deadlines ̶Provide key messages and talking points ̶Prepare them to answer employee questions
Dr. Sunita Bharatwal** Dr. Pawan Garga*** Abstract Customer satisfaction is derived from thè functionalities and values, a product or Service can provide. The current study aims to segregate thè dimensions of ordine Service quality and gather insights on its impact on web shopping. The trends of purchases have
the flow rate and pressure. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Butterfly valve Butterfly valve and globe valve Butterfly valve and ball valve Butterfly valve and gate valve Check valve Gate valve Globe valve Ball valve Valve shaped like a
with calcium hydroxide was slower than that of MTA, both materials were successful for pulp capping in human teeth. (J Endod 2008;34:1-6) Key Words Biocompatibility, calcium hydroxide, human pulp, min-eral trioxide aggregate, pulp capping, pulp therapy T he aim of conservative pulp therapy is to maintain the coronal and radicular pulp
Bruksanvisning för bilstereo . Bruksanvisning for bilstereo . Instrukcja obsługi samochodowego odtwarzacza stereo . Operating Instructions for Car Stereo . 610-104 . SV . Bruksanvisning i original
