Spa M15 TL10 T20 TS20 MX25 M30 MA30 TL35

enggerInstruction ManualPlate Heat ExchangersM15 TL10 T20 TS20MX25 M30 MA30 TL35frespaporitaswedanfindutruspolnorPart number 34500621-010808

Table of contentsEnglishengTable of contentsDescription . 1Main components . 1Function . 2Installation . 3Requirements . 3Lifting . 4Raising . 5Operation . 6Start-up . 6Unit in operation . 7Shut-down . 7Maintenance . 8Cleaning-In-Place (CIP) . 8Manual cleaning . 9Pressure test after maintenance. 16Regasketing . 17How to contact Alfa Laval:Contact details for all countriesare continually updated on ourwebsite.Please visit www.alfalaval.comand contact your local Alfa LavalRepresentative.Plate Heat ExchangerExcept for this Instruction Manual, the following documents are alsoincluded in this shipment:– Plate Heat Exchanger (PHE) drawing– Plate hanging list– Parts list with exploded view drawing.eng

engEnglishEnvironmental complianceEnvironmental complianceAlfaLaval endeavours to perform its ownoperations as cleanly and efficiently as possible,and take environmental aspects intoconsideration when developing, designing,manufacturing, servicing and marketing itsproducts.UnpackingPacking material consists of wood, plastics,cardboard boxes and in some cases metal straps. Wood and cardboard boxes can be reused,recycled or used for energy recovery. Plastics should be recycled or burnt at a licensedwaste incineration plant. Metal straps should be sent for material recycling.engMaintenanceDuring maintenance oil and wear parts in themachine are replaced. All metal parts should be sent for materialrecycling. Worn out or defective electronic parts should besent to a licensed handler for material recycling. Oil and all non metal wear parts must be takencare of in agreement with local regulations.ScrappingAt end of use, the equipment shall be recycledaccording to relevant, local regulations. Beside theequipment itself, any hazardous residues from theprocess liquid must be considered and dealt with in aproper manner. When i doubt, or in absence of localregulations, please contact the local AlfaLaval salescompany.Plate Heat Exchanger

DescriptionEnglishengDescriptionMain componentsCarrying barCarries the channel platesand the pressure plate.Frame plateSupportcolumnTightening boltsPress the channelplates together.BoltprotectionConnectionsHoles through theframe plate, permittingthe media to enter intothe heat exchanger.Threaded studsaround the holes secure the pipes to theapparatus. Metallic orrubber-type liningsmay be used to protect the holes againstcorrosion.Guiding barKeeps the channelplates in line at theirlower end.Pressure plateMoveable steel plate. In some casespipes may be connected to thepressure plate.Channel platesHeat is transferred from one medium tothe other through the thin channel plates.The number of plates determines the totalheat transfer surface.Protective sheetsSupplied on request.Plate Heat Exchangereng1

engEnglishDescriptionFunctionThe plate heat exchanger consists of a pack ofcorrugated metal plates with portholes for the passage of the two fluids between which heat transferwill take place.tightening bolts. The plates are fitted with a gasketwhich seals the channel and directs the fluids intoalternate channels. The plate corrugation promotes fluid turbulence and supports the platesagainst differential pressure.The plate pack is assembled between a frameplate and a pressure plate and compressed byThe A-plate is a platehanging with the chevronpointing downwards.eng2The B-plate is a platehanging with the chevron pointing upwards.Plate Heat Exchanger

i-pass units:Connections on the pressure plateIt is important that the plate pack has beentightened to the correct measurement(check against drawing) before the pipe isconnected.ElbowSpace1500 mm minimum freespace is needed for liftingplates in and out.To make it easier todisconnect the plateheat exchanger, an elbow should be flangedto the connection in thepressure plate, directed upwards or sideways, and with anotherflange located just outside the contour of theheat exchanger.FoundationShut-off valvesTo be able to open theheat exchanger, shut-offvalves should be provided in all connections.Note! Before connecting any piping, make sureall foreign objects have been rinsed out ofthe system. When connecting the pipe system makesure the pipes do not subject the plate heatexchanger to stress or strain. To avoid water hammer, do not use fastclosing valves.Install on a flat foundationgiving enough support tothe frame.Safety valves should be installed according tocurrent pressure vessel regulations.If PHE surface temperature is expected to be hotor cold, the PHE should be isolated.It is recommended that protective sheets areused to cover the PHE.For each model, design pressures and temperatures are marked on the identification plate.Those must not be exceeded.Plate Heat Exchangereng3

engEnglishInstallationLiftingWarning!Never lift by the connections or the studsaround them. Straps should be used whenlifting. Place straps according to picture.M15, TL10, T20, TS20MX25, M30, MA30TL35βββ 45 β 45 eng4Plate Heat Exchanger

InstallationEnglish1Place two timber beams on the floor.2Lift the heat exchanger off pallet using e.g.straps.3engRaising4Place straps around one bolt on each side.5Lift the heat exchanger off the timberbeams.6Lower the heat exchanger to horizontalposition and place it on the floor.Place the heat exchanger on the timberbeams.Plate Heat Exchangereng5

engEnglishOperationOperationStart-upNote!If several pumps are included in the system, make sure you know which oneshould be activated first.3If there is a valve at the exit, make sure itis fully open.4Open the vent and start the pump.Note!OpenAdjustments of flowrates should be madeslowly in order to avoid the risk of waterhammer.Water hammer is a shortlasting pressurepeak that can appear during start-up orshut-down of a system, causing liquids totravel along a pipe as a wave at the speedof sound. This can cause considerabledamage to the equipment.1Check that measurement A is correct. ForA, see enclosed PHE-drawing.2Check that the valve is closed between thepump and the unit controlling the systemflowrate.5Open the valve slowly.Open slowly6When all air is out, close the vent.ClosedCloseOpen7eng6Repeat steps 1–6 for the second media.Plate Heat Exchanger

OperationShut-downengUnit in operationEnglishNote!Note!Adjustments of flowrates should be madeslowly in order to protect the systemagainst sudden and extreme variations oftemperature and pressure.If several pumps are included in the system,make sure you know which one should bestopped first.1During operation, check thatmedia temperatures and pressures are withinthe limits stated on the PHE-drawingSlowly close the valve controlling the flowrate of the pump you are about to stop.Closeno leakages appear due to faulty tighteningof the plate pack or to defective or damagedgasketscarrying bar and guiding bar are kept cleanand greasedthe bolts are kept clean and greased.2When the valve is closed, stop the pump.3Repeat steps 1–2 for the other side.4If the heat exchanger is shut down for several days or longer, it should be drained.Draining should also be done if the process is shut down and the ambient temperature is below freezing temperature of themedia. Depending on the media processed, it is also recommended to rinse anddry it.Clean andgreasedNo leakageAlways consult your local Alfa Laval office foradvice on new plate pack dimensions if you intend tochange number of plates selection of gasket material if operating temperatures and pressures are permanentlychanged, or if another medium is to be processed in the PHE.Plate Heat Exchangereng7

engEnglishMaintenanceMaintenanceCleaning-In-Place (CIP)The Cleaning-In-Place (CIP) equipment permitscleaning of the plate heat exchanger without opening it.Follow the instructions of the CIP equipment.The following CIP models can be used: CIP75,CIP200, CIP400 and CIP800.If CIP cannot be done, cleaning must be performed manually, see section “Manual cleaning”CIP performs cleaning of fouling and descaling of limedeposits passivation of cleaned surfaces to reduce susceptibility to corrosion neutralization of cleaning liquids before draining.Cleaning liquidsCleaning liquidDescriptionAlfaCausA strong alkaline liquid, for removing paint, fat, oil and biological deposits.AlfaPhosAn acid cleaning liquid for removing metallic oxides, rust, lime and otherinorganic scale.AlfaPassAn alkaline liquid for passivation (inhibition of corrosion).AlfaNeutraA strong alkaline liquid for neutralization of AlfaPhos before drainage.Alfa P-ScaleAn acidic cleaning powder with a corrosion inhibitor particularly effectivefor removing of calcium carbonate and other inorganic scale.Alfa P-NeutraAn alkaline powder for neutralization of used Alfa P-Scale prior to disposal.AlfaAddA neutral cleaning strengthener to be used with AlfaPhos, AlfaCaus andAlfa P-Scale. Provides better cleaning results on oily, fatty surfaces andwhere biological growth occurs. AlfaAdd also reduces any foaming.Alpacon DescalantAn acidic, water based, non-hazardous cleaning agent designed forremoval of scale, magnetite, algae, humus, mussels, shellfish, lime andrust. Containing BIOGEN ACTIVE, a biological mixture made from renewable materials, as an active ingredient.Alpacon DegreaserA neutral degreaser to be used with Alpacon Descalant. Effectivelyremoves oil, fat or grease layers, but also reduces foaming. ContainingBIOGEN ACTIVE, a biological mixture made from renewable materials,as an active ingredient.eng8Plate Heat Exchanger

MaintenanceEnglishWarning!OpeningTo avoid hand injuries owing to sharp edges,protective gloves should always be wornwhen handling plates and protective sheets.Plate Heat ExchangerengManual cleaningWarning!If the heat exchanger ishot, wait until it has cooleddown to about 40 C(104 F).1Drain the plate heat exchanger.2Inspect the sliding surfaces of the carryingbar and wipe clean.eng9

engEnglishMaintenanceMark the plate assembly on the outside bya diagonal line.36The pairs of bolts that are fitted with bearing boxes are opened alternately and diagonally in two steps, see figures below.StepBolt No.To dimension11–2–3–41,05A21–2or3–4OpeningBe careful so that the frame plate andpressure plate are always in parallel.Skewing of the pressure plate during opening must not exceed 10 mm (2 turns perbolt) across the width and 25 mm (5 turnsper bolt) vertically.Mark4Measure and note down the dimension A.5Loosen the bolts which are not fitted withbearing boxes and remove them.Step 1: Loosen the four bolts alternatelyand diagonally until the plate packagemeasures 1,05A.Step 2: Loosen the two diagonal pairs ofbolts are loosened alternately, as shown inthe figure below.Removethe boltsRemovethe boltseng10Plate Heat Exchanger

MaintenanceOpen the plate pack by letting the pressureplate glide on the carrying bar.eng7EnglishIf plates are to be numbered, do this beforeremoving the plates.Plates need not to be removed if cleaningis done using only water, i.e. without cleaning agent.Removethe platesPlate Heat Exchangereng11

engEnglishMaintenanceManual cleaning of opened unitsCaution!Note!Never use hydrochloric acid withstainless steel plates. Water of morethan 330 ppm Cl may not be used forthe preparation of cleaning solutions.It is very important that carrying barsand support columns in aluminiumare protected against chemicals.Be careful not to damage the gasket during manual cleaning.Deposits removable with water and brushPlates need not to be removed from the plate heat exchanger during cleaning.Remove deposits using a soft brush andrunning water.12Rinse with water using a high pressurehose.Deposits not removable with water and brushPlates must be removed from the plate heat exchanger during cleaning.Brush with cleaning agent.1eng122Rinse with water.Plate Heat Exchanger