Surface-supplied diving

2 IHC Hytech

Market

3 Surface-supplied diving

IHC Hytech - Surface-supplied diving

4 Reliablepartnerforefficient

surface-supplieddivingsolutions

Products

6 Decompression chambers

10 Containerised systems

13 Handling systems

14 Heaters and scrubbers

15 Control panels

16 Communicationandlighting

17 Analysers

18 High-quality components

20 Personal gear

26 IHC Life-cycle support

Contents

21

4

14

13

IHC Hytech 3

IHC Hytech understands that its customers don’t want to spend too much time on paperwork. Its equipment andsystemsareprovidedwiththerightcertificatesexworks.Thismeans that a faster deployment of diving systems is possible, whichthereforereducescostsforcustomers.

InternationalisationDevelopment in deep and ultra-deep water is booming, mostnotablyinBrazil,WestAfricaandSouthEastAsia.ThedecommissioningmarketisalsodevelopinginthenorthwestofEuropeandtheGulfofMexico,requiringnewsolutions.Nextdoor,theNorthSeahasamongtheworstencountereddivingconditions.ItisevidentthatmorecontractorsworldwideareturningtoIHCHytechforthebestdivingsolutions.

IHC Hytech is formed by a group of people with a wealth of experienceineveryareaofcommercialdivingandpresentsanewperspectiveonmanyaspectsinthisdevelopingfield.Thefact that the Dutch and Belgian navies have equipped their multimillion-euro mine sweepers with custom-made, non-magnetic IHC Hytech decompression units is testimony tothehighqualityoftheequipment.Severalsalvagecompaniesand diving contractors around the world also use IHC Hytech hardware.Thecompany’sstrapline–“wekeepyoubreathing”–underlinesthefocusofIHCHytech.

Safety and regulationsThe commercial diving discipline is subject to hugeconstraints and risks, caused by many different factors,such as poor visibility and illumination, confined spaces,sea states, temperature differences, currents, underwaternoise,decompressionsicknessandmarinelife,forexample.Therefore it is governed by an abundance of safety rulesand regulations from governmental institutions, businessassociations and classification societies. Technical andoperational guidelines are founded on the basis of theapprovedcodeofpracticesasdevelopedforworkintheUKandNorwegiansectoroftheNorthSeaandAtlantic.Theygivestrictdirectionsonthedesignandusageofdivingequipmentforoffshore.

Tightening and increasingly stringent regulations haveconsequencesforallpartiesinvolvedinthesurface-supplieddiving industry. As a reliable supplier of diving solutions,IHC Hytech is well aware of how its customers have to comply with legislation. Due to its vast experience in thisfield, IHC Hytech has become an authority on this area ofthe subsea business and can advise on the best and safest solutions to meet specific requirements. It is also activelyinvolvedinthedevelopmentofregulations.

Surface-supplied diving

Market

Wet bell handling system

4 IHC Hytech

Reliable partner for efficient Surface-supplied diving solutions

Decompression chambers Handling systems

IHC Hytech – Surface-supplied diving

IHC Hytech 5

bijschrift

IHCHytechstrivestodeliverthebestvaluetoitscustomers.It is a partner of choice for innovative, sustainable andintegrated hyperbaric systems and diving equipment.IHC Hytech’s solutions are reliable, efficient and flexible tothedemandsofchallengingsurface-supplieddivingprojects.Withitsextensiveknowledgeandin-housedesigncapabilities,IHC Hytech ensures compliance with the latest technological developments,strictestsafetyregulationsandmoststringentenvironmentalstandards.

ReliableIHC Hytech excels at managing the complexity inherentwithin the development of hyperbaric systems and diving equipment.Eachproject isapproachedwithcare,creativityand adaptability, so that customers can depend on delivery withinthetermsoftheagreement.

IHC Hytech is Royal IHC’s in-house specialist in high-quality divingsystemsandequipment.Withabroadcustomerbasethat includes various navies, governmental organisations,salvage companies and inshore/offshore diving contractors(bothdomesticandinternational),ithasextensiveexperiencein designing and manufacturing safe and reliable diving equipment.RoyalIHCisalsoabletointegratedivingsystemsfromeveryreputablesupplier.

PartnershipSpecific demands require bespoke designs. IHC Hytechprovides cost-effective products, not only when newlyacquired, but also throughout their working lives. TheIHC Hytech team works closely with the customer andbecomes an extension of their organisation, so that bothparties can complement each other’s expertise. It can, forexample,adviseonthedesign, regulationsandstructureoftheproject.Thisreducesriskandcosttocreateasmootherprocess,whichleadstobetterendresults.

Efficient solutionsIHC Hytech constructs custom-built systems and equipment tomeetcustomer-specificrequirements,aswellasstandardsystemswithaready-to-builddesign.

Conductingbusinessinanoffshoreorinshoreenvironmentisoften turbulent.Technicalandfinancial risksaresignificant,andmarginsareconstantlyfluctuating.Thedifferencebetweenprofit and loss for an owner or operator of technologicaldiving systems is greatly influenced by the productivity oftheselong-terminvestments.Efficiency,reliability,durabilityandsafetyarekeyfactorstosuccess.IHCHytechunderstandsitscustomers’needsandhastheabilitytoprovideinnovativeandefficientsolutionsforavarietyofsurface-supplieddivingprojects.

Personal gear

6 IHC Hytech

Products

Decompression chambers

IHC Hytech 7

bijschrift

8 IHC Hytech

Theinteriorandexteriorofthechambersarecoveredwithaspecialcoating.Workingpressuresusuallyrangefrom50,70or100metresofseawater(msw)forsurface-supplieddivingactivitiesforairandmixedgasoperations.Chambersforself-propelledhyperbaric lifeboatswithworkingpressuresofupto 400msw can, however, also be provided for saturationdivingoperations.

For integration in existing systems, the chambers can besuppliedwith connectionflanges tofit anybell or auxiliarychamber. The support skid can be used to integrate thebreathing gas cylinders required to provide maximumoperational independence. Thepressurehull hasanumberof spare penetrators that allow additional systems to beinstalled.Alarge-sizemedicallockisastandardfeature.Viewportsallowobservationofbothcompartments.

The decompression chambers built by IHC Hytech areconsidered to be market leading and suitable for anyapplication. They are the result of divers working togetherwithskilleddesignteams,mixingseasonedexperiencewithfreshtechnologicalperspectives.Thecompanybelievesthatdecompression chambers should be easy to operate to avoid possibleerrorsorlosingprecioustime.That’swhyhigh-qualitycomponentsareusedtopreventunnecessarymaintenance.Thisincreasesthedurabilityofthedecompressionchamber.

IHC Hytech manufactures decompression chambers in various types of materials and configurations: aluminium, steel,duplexstainlesssteel,stationary,mobileortransportable.IHCHytechdelivers standard tanks, but is by nomeans limitedtoonemodel.Alldecompressionchamberscanbecustom-madetofittheirapplicationsprecisely.Safetyandreliabilityare important features and IHC Hytech is able to build decompressionchambersaccordingtoanystandard:Lloyd’sRegister,ABS,GL,DNV,IMCA,andsoon.

A standard decompression chamber comes with two compartments: the main chamber and an entrance lock.The chamber is skid-mounted and has large lifting lugs forincreased mobility. The tank will go wherever the divingoperationislocated.

Products

Decompression chambers inside a container

Interior of a decompression chamber

Decompression chambers

IHC Hytech 9

beconnectedtoalargenumberofhyperbaricfacilities.ItisalsopossibletouseadaptionflangestoconnecttheDARTtohyperbaricfacilitiesusingotherconnectionflanges.TheDARTtransportable decompression chamber can be installed in an ISOstandardcontainer.

ATELstandsforAttachableTransportableEntranceLock.Thisis an additional chamber compartment,which canbeusedin combinationwith the DART, allowing attendant entry totheDART.TheATELisprovidedwithaspecialSTANAGfemaleflange,whichmakesitpossibletolinktheATELtotheDART,creatingatwo-compartmentchamber.

DART and ATELIHC Hytech is the designer of a small lightweight decompression chamber – the DART (Diver Attendant RecompressionTransportable). This type of transportable decompressionchamber is large enough to accommodate two people (one patientandoneattendant).Duetoitsspecialshapeandsize,theDARTisspaciousenoughtoallowextendedtransportationortreatmenttimesifnecessary.

Compactand lightweight, theDART is ideal for transferringdivers under pressure to a hyperbaricmedical facility. It isfittedwitharotatingSTANAGmaleflange,whichallowsitto

Openingthisvalvewilladdoxygentothechamberatmosphere.Theoxygenwillbebroughtintothechamberclosetotheairoutlet of the CO2scrubber.Theairflowthroughthescrubberwillensuretheaddedoxygenmixesquicklywiththechamberatmosphere.

O2 make-up valveDivers’bodiesuseoxygenfortheirmetabolism.Thisoxygenusedbytheoccupantsmustbereplaced.Iftheoxygenlevelinthechamberbecomestoolow,theoperatorcanaddoxygento the atmosphere using the O2make-upvalve.

Inside DART

O2 Make up mounted outside the dart

10 IHC Hytech

Breathing air compressor

Products

Containerised system

IHC Hytech 11

12 IHC Hytech

Products

Containerised DDC with machineryThis complete system (see the picture above and on page10/11)isbuiltina20ftcontainer.Inaddition,acompletetentcanbebuiltonthecontainerforcomfortwhileconnectingtheDARTtothe1,600mmDouble-lockDecompressionChamber(DDC) and for extra storage. The container is transportablebytruckorboat.Thecompressorisinstalledonaretractablefloorplateforeasierservicing.

Themainuseisincoastalareas.Thecontaineristransportedandstoredontheshipdeck,soitwithstandsseaconditions.The container is dust-, sand- andwaterproofwhen closed.Temperatureconditionscanvaryfrom-40°Cto+50°C.

Thisprojectcontainsthefollowing:• 1,600mm DDC• A-frame for connecting a DART to the decompression

chamber• air-conditioning• 10high-pressureairbottles,each50litres• fourhigh-pressureoxygenbottles,each50litres• high-pressure compressor• firefightingsystem• onecontrolpanel.

IHC Hytech has established a name for itself in containerised systems. These complete self-supporting units areindependent and easy to handle. They can be built asstandard or custom-made to any specification, such aspersonal preferences, size of the decompression chamber, selection of compressors andweather conditions (they areoperableunderextremeweatherconditionssuchastropicalorarctic).Supportedbyitsin-houseengineeringdepartment,IHCHytechcanmanufacturetherightcontainer for the jobaccordingtovariousstandards,suchasIMCA,DNV,ABSandLloydsRegister.

The versatility of these containerised systems is unrivalled.IHCHytechcanofferatotalpackage,whetheritisaportableor integrated system (in a ship or building). All necessaryequipment,suchaspersonalgearcanbedelivered.Foruseonoffshorerigs,IHCHytechhasmadeanextensivenumberofAtexpressurisedcontainerswithallthenecessaryequipment.Over the years, IHC Hytech has manufactured a large number ofcontainerisedsystems,suchas:• containerised decompression chambers • mixedgasproductionunits(EAN/O2)• machinery containers• divecontrolcontainers.

ManyofIHCHytech’semployeeshaveawealthofexperiencein thefield. Therefore, it candevelopuser-friendly systemswith an ergonomic layout. Due to the use of high-qualitycomponents,themaintenancecostsarerelativelylow.

Overview of a typical containerised DDC with machineryContainerised systems

IHC Hytech 13

Wet bell on board of a ship

Wet bellTheWBHS3-100 is an open wet bell handling system thatallowsthreediverstoworkatadepthofupto100metres.This wet bell handling system can be integrated in a ship.The system consists of an open wet bell with an internaldiameterof 1,500mm (approximately 5ft), anA-framewithsheaves, a top frame with hydraulic winches to hoist the bell and its clumpweight, and a Dive Control Container (DCC).A dive control panel, and the controls for communication,illuminationandcamerasystemsareinsidetheDCC.Thebellis designed for strong current operations and is equippedwithanextraheavyclump.

The system can be completed with a containeriseddecompression chamber (20ft container), and variousadditionaldivingmaterialssuchashotwatersuits,ahotwatersupply unit, diving suits and helmets, and various underwater tools.

Toensurethesafedeploymentofdivers,IHCHytechdeliversseveraltypesofdiverhandlingsystems.

Launch and Recovery Systems (LARS)Diverscanbetransportedtoandfromthesubseaworksiteusing the LARS. This is a diver handling system designedforadivecagewith twodiversandtwo50-litreairbottles,withadeploymentdepthof100metres.Thedivingcontrolstationislocatedinoneofthecontainers.Deliveriesincludethe complete diving gear, such as helmet lights, video communicationand the surfaceumbilical connections. Twoversionsareavailable:anair-diveLARSandanair-diveLARSbasic.Theair-diveLARShasanextendableA-frame.

ThebenefitsofIHCHytech’sLARSareasfollows:• easytotransport(fullystackable)andoperate• guaranteed safety• the clump winch can raise a manned cage in case of

emergency(secondaryback-up)• certifiedbyLloyd’sRegisterandmeetsIMCAguidelines• marineworkingenvironment• heavy-dutyparts.

Handling systems

Outboarding LARS step 1

Outboarding LARS step 2

Outboarding LARS step 3

Air dive LARS

14 IHC Hytech

Products

A smaller scrubber unit is also available. It is especiallysuitable for use inside smaller hyperbaric/decompression chamberswhere space is limited, suchas aDART. Theunithas a clamp that holds two CO2 adsorbent canisters. It hasabuilt-inelectricfan.Incaseofelectricfailure,itispossibleto connect a simple medical breathing mask and use thescrubberasalung-poweredunit.

Theheaterandscrubbermotorunitsarecompletelycasted.Environmentalconditions,suchasoxygenlevel,humidityorpressure,willnotaffect themotoratall.Themotor isverydependablebecauseofitsbrushlessdesign.Themotorspeedconfigurationcanbeeitherfixedorcontrollable.

Decontamination canisterIHC Hytech’s decontamination canister removes pollutionfrom a breathing gas in an enclosed environment other than CO2whenconnectedwiththeIHCHytechscrubberfanunit.The decontamination scrubber canister contains a specialblend of carbon molecular sieves and a catalyst, and is stored in an airtight container. Once the container is opened andthecanisterisexposedtotheenvironment,itstartstowork.Thespecialfillingmixtureofthecanisterremovesallkindofcontaminationcausedbyhumansinanenclosedenvironmentduetobreathing,vomit,urine,faecesandsweat.

In a small, enclosed tank it’s important to maintain theright environmental conditions. IHC Hytech designs andmanufacturesitsownheatersandscrubbers.Thebenefitsofthisequipmentinclude:• non-corrosive materials• highefficiency• low voltage DC• RPM control• encapsulatedmotor.

HeatersThe single and double heat exchangers are designed tocontrol the temperature inadeckdecompressionchamber.Thesingleheatexchangercanbeusedeitherforheatingorcooling the chamber atmosphere. The combi unit (doubleheatexchanger)consistsofaheatingandacoolingexchanger,andcanbeusedforbothsimultaneously.

ScrubbersTheCO2 scrubber unit is designed to remove CO2 from the atmosphere in a diving systemor decompression chamber.The scrubber unit consists of a fan that pulls air through acanisterfilledwithCO2 adsorbent, such as Sodasorb or soda lime.Thecanister isprovidedwithan internalfinemeshof0.3mm.Thispreventsoff-dustingofthesodalime.

A scrubber and heater inside a decompression chamberHeaters and scrubbers

IHC Hytech 15

Thepanel ismounted insidearuggedplasticcontainerandcontains a communicator, triple timer and independentHPandLPsupplies.Thedownstreampressureisadjustableandthesystemissuitableforair,nitrox,oxygenandtrimix.Threeseparate digital oxygenmeters are optional to analyse thebreathinggassupplyofthethreedivers.

SLT60 light helmet diving system The SLT60 is a surface-supplied diving system designed tosimultaneously support two divers conducting hard workto a depth of 60 msw, in order to carry out all manner of underwatertasks,includingconductingsurveys,maintenance,defectrectification,cuttingandweldingetc.

The Surface Demand Diving System SLT 60 has beenmanufacturedinaccordancewithCEregulations,theGermanstandard DIN 58642 for hose-supplied diving apparatus,as well as the 1993/2000 EN 250 HSE & NPD regulationsfor diving equipment. It also complies fully with the newEuropean standard for Surface Demand Diving Equipment.IHCHytechisregisteredwiththenotifiedbody,GermanischerLloyd,astheofficialmanufactureroftheSLT60lighthelmetdivingsystem.

IHC Hytech manufactures various kinds of mounted andportablecontrolpanelsforseveralapplications.By listeningto feedback from experienced colleagues and customers,IHCHytechdesignsthepanelssothattheyareeasytooperate.Itcanprovidecustomisedsolutions,suchasdetachedcontrolpanels, or control panels at the end or on the side of a decompressionchamber.

Dive control containerSeparate dive control containers, for diver handling systems for example, are equipped with the same easy-to-operatecontrolpanels.Everydiverhashisowncolour.TheIHCHytechdivecontrolcontainerisconfiguredtohousealltherequiredequipmentandcontrolsneededtorunthediveoperation.Adivergassupplypanelperformsanumberoftasks.Itsuppliesbreathing gas to the divers, monitors the depth of the divers andanalysesthecompositionofthebreathinggas.Usingthemonitors,theoperatorcanobservetheactivitiesofthediversandequipment.

Portable diving panelThis complete system complies with IMCA guidelines andis available as standard in a two- or three-diver version.

SLT60

Panel of the portable 2-diver case

Control panels

Control panel of a decompression chamber

16 IHC Hytech

Products

The chamber communicator 2102 mounted in a control panel

A portable 702 diving communicator

Bell light

Chamber communication and lightingEquipment used in hyperbaric conditions has specificrequirements.TheIHCHytech2102chambercommunicatoris a communication unit designed for hyperbaric chambersanddecom-pressiontanks.Theunitcanbemounted in theoperatingpanel.Theoperatorcantalktothemainchamber,entrancelockorboth.

TheIHCHytechhighbrightnessbelllightcanbeusedasamainorsecondarylightingsysteminsideahyperbaricenvironment.TheLEDbelllightwithstandspressuresupto500msw(1640fsw). Itcanbeusedinoxygen-richatmospheres,wetordryenvironmentsandheliumenvironments.

Good and reliable communication is an important aspectof surface-supplied diving. IHC Hytech can providecommunication units to perform the job: rack-mounted orportable, digital or analogue, helium unscramblers, electret ordynamicmicrophones,andsoon.

Diving communication and lightingTheIHCHytechdivingcommunicatorshavebeendesignedtoprovideareliablemethodofcommunication.Diverscanbeconnectedtothecommunicationunitusingafour-corecablewithfourbananaplugs.Whenpressingthe“PRESSTOTALK”switch, both divers can be addressed through the speaker,whichalsoservesasamicrophone.Thecommunicatorshaveabuilt-inbattery,aswellasamainspowerconnectionandanexternalbatterypowerconnection.Whilethemainssupplyisconnected,theinternalbatteryisautomaticallycharged.Thebuilt-in battery allows the communicator to be in stand-bymodeforupto72hours.Thediverconnectionsareseparatedfrom the rest of the system to ensure the divers can never be exposedtoadangeroushigh-voltagecurrent.

Portable or helmet-mounted camera and lighting providesgoodvisualsupport.TheIHCHytechcameracanbemountedonKirbyMorganhelmetsandbandmasks.Thecamera isacompactunit,connectedtothesurfacewithasinglecable.Inaddition,theIHCHytechLEDhelmetlightcanbeusedasadedicated camera light or as a general source of underwater lighting.

Communication

IHC Hytech 17

Fathom Systems iGA – intelligent gas analysers Thenecessityforthehighestlevelsofsafetyisreflectedinthemanufacturing quality of these instruments and the design, whichincorporatesanumberofdistinctivefeatures:• the highly accurate O2 and CO2 analysers are accuracy

compliant with DNV-OS-E402 to a maximum workingdepth of 300msw

• theparamagnetic sensorused in thehighaccuracyO2 is notaconsumable,eliminatingtheneedtopurchase,store,transport and manage replacement fuel cells

• analyser accuracy is optimised by maintaining constantgasflow,keepingthesensoratconstanttemperatureandapplyingbarometriccompensation

• multi-colouredvisualandspokenalarms• analyserdisplaysshowpercentageandpartialpressureof

oxygen, calculatedby factoring indepth fromapressuresensor,existingdepthdataonthenetworkorbymanualinput.Most analysers show surface equivalent (SE) %O2 values, which do not reference chamber depth, so alarm pointsmustbecalculatedandthenadjustedmanuallybythe operator to compensate for depth change. FathomSystemsanalysersdothisautomatically

• simple,semi-automaticsoftwarecalibrationprocedures• non-volatilestorageofsystemsettingsandcalibrationdata• safety engine and dual watchdog technology is used in the

O2injectionanddepthmonitormodulesforsafetyintegrity• everymodulehascomprehensiveinternaldiagnosticsthat

displays system status • networkconnectivity.

Analysers are an important instrument for an operator to monitorthesafetyofthedivers.IHCHytechmanufacturesanddelivers several high-quality analysers for various monitoring tasks.

IHC Hytech O2/CO2 analyserThe IHCHytechO2/CO2 analyser is designed to monitor the atmosphere inside hyperbaric chambers. The analyser hastwoflowmeterswithcontrolvalves,whichallowtheflowtothe O2 and CO2sensorstobeadjustedseparately.

Thefrontplateoftheanalyserhassixmountingholestobuildtheunitintothecontrolpanelofthehyperbaricinstallation.Theunithasa12VDCpowersupply,soitcanalsobeusedinmobileinstallations.

Theanalyserhasfouralarmsthatconsistofalightsignalandanaudiblesignal.TheO2sensorhasalow(<19%)andahigh(>23%) alarm. The CO2 sensor has two high alarms, set at 0.2%andat0.5%.Whileanalarmisactive,theaudiblesignalcanbemuted,butthevisualsignalwillremainactiveuntiltheO2 or CO2levelthattriggeredthealarmisbackinasaferange.

A single oxygen analyser is also available. This analysermeasures the oxygen partial pressure and the oxygenconcentrationingasmixturesandair.

Refurbishment of the Medusa - Dutch NavyAnalysers

18 IHC Hytech

Products

maximumflowisaccidentallyexceededbyincorrectuseofavent valve, the system would be required to slowly build up pressureagain,usinggasfromtheprotectedtank.Therefore,the IHC Hytech flow fuse incorporates a small vent screw,whichcanbesettoleak.Thetimeneededtorebuildpressureinaparticularsystemofcoursedependson its size, so thismustbesetduringatrial.Theflowfusecanbemountedinor outside the tank. It shouldbewithin 20degrees fromahorizontalposition.ThefusehasbeenmadefrombrasswithaPTFEcoating.

Check valvesThe IHCHytechcheckvalve responds to theneed for largethreadedhighand lowpressureone-wayvalves. Thecheckvalves are made to the user’s specification, although thecompany usually stocks 1”NPT female connections. Largeethreadsareavailable.Theflowfusecanbeusedforhighandlowpressure.

ManifoldsIn its decompression chambers, diving panels, life-support panels, hydraulic units, reducer systems and all other pressure systems, IHCHytechmakesextensiveuseofmanifolds.Anyconnection fitting in a pressure system poses a potentialleakagerisk.Intheolddays,forinstance,divingpanelswereconstructed using countless fittings, connections, valves,adaptersandotherplumbing.Leakswereamajorproblem.A manifold is usually a solid bar of suitable material, which hasmostvalvesandconnectionsconcentratedinit.Gooduseofmanifoldsreducesupto90%offittings,andthereforetheleakagerisk.Afurtheradvantageisthatmanifoldsmakethe

IHC Hytech manufactures and delivers a wide range of high-quality components, which are designed to meet the toughest standards in the industry. Examples include flowfuses,reducers,analysers,manifolds,silencers,checkvalves,tubing,andsoon.

ReducersThe IHC Hytech line of reducers has been especiallyengineered for applications that require lightweight,corrosion-resistant,compactandreliableregulationinhigh-pressure systems. Simplicity in design provides a very highlevelofreliability.Thereducerhasonlyonemovingpart. Ithas an aluminium bronze body, which has been chosen for its corrosionresistanceandgreattensilestrength.Thereducerismade to the specifications of the customer, to ensure itexactlyfitstheapplicationrequirements.WhenuseddirectlyonaHPair/gasbank,itiscapableofextremelyhighflowrateswithoutfreezingup.Itisvirtuallymaintenancefreebecauseof the simple design. The reducer is fitted with a trackingport.Whenthisoptionisused,thereducerwillautomaticallyadjusttheouputpressurerelativetothepressureconnectedtothetrackingport.

Flow fuseTheIHCHytechflowfusecanbeincludedinasysteminordertoprotectanair/gasbankfromrunningempty,forexamplewhenahosebreaks.Theflowfuseissetforamaximumflowof 150m3/hr,ataworkingpressureof30bars(440psi).Incasethemaximumflowisexceeded,thefusewillcloseinstantly.If the pressure behind the fuse remains low, it won’t open again. However, in some situations, for example when the

BIBS manifold with expansionHigh-quality components

IHC Hytech 19

Tungum tubingHigh pressure

distribution manifold

AS4000 reducers

TubingTungum alloy (aluminium-nickel-silicon-brass) tubingcombines an unusually high strength-to-weight ratio, withductility,excellentcorrosionresistance,andfirst-classfatigueproperties.Highlyresistanttoseawateranditsatmosphere,Tungum resists both stress and crevice corrosion to offeroutstanding serviceability, even at intermittent duty in thehighly corrosive ‘splash’ zone offshore. Non-magnetic andnon-sparking propertiesmake Tungum invaluable in pipinghigh-pressure gases, particularly oxygen where its thermalconductivity/diffusivity characteristics virtually eliminatethe potential dangers present when lesser materialsare employed. When used in high-pressure hydraulic orpneumatic circuits, these features, together with inherent“cleanbore”characteristics,combinetoprovideanaffordableandeasilyconstructed,high-integritysystem.Thisrequiresaminimumamountofpurgingandminimalexternalprotectivetreatment.

diving panel or system compact and extremely strong. IHCHytechbenefitsfromseveralyearsofexperienceindesigningandmanufacturingmanifolds.

BIBS manifoldsA special version is the BIBS (Built-In Breathing System)manifold. This is designed to supply oxygen duringtreatment in a decompression chamber. All manifolds willbe mounted inside the decompression chamber with a shut-off valve located direct on the vessel’s skin. This valve isnotanoperationalvalve,butashut-offvalve toenable theoccupantstoclosethesupplyofoxygen.Thehullpenetrationplate is specially designed to supply and support the manifold blocks. Quick connectors with a shut-off valve inside areusedtopreventuncontrolledoxygenflow.Whenthehoseisdisconnected,thevalvecloses.

SilencersIHC Hytech silencers provide a significant decrease innoise level, both inside and outside of decompression and hyperbaricchambers.Thesilencersdonotobstructairflow,they only reduce noise by eliminating turbulence. This is ahugeadvantageoversinteredbronzefiltersthatcancorrode,become obstructed, and eventually be blown to pieces by air pressure. Another advantage of IHC Hytech silencers isthepossibilitytodirectairflowformixingfreshairwiththechamberatmospheresufficiently.Thesilencerscanbeusedbothinsideandoutsidethetankintheexhaustlines,andtheyareavailablewitharangeofconnections.

20 IHC Hytech

Thickness gaugeIHC Hytech is an official supplier of Cygnus Instrumentsunderwater thickness gauges, including the Cygnus DIVEMk2.WithitsbrightlycolouredAMOLEDdisplay,theCygnusDIVEMk2provideseasyviewingfromallanglesforthediverandhiscamera,eveninpoorvisibility.Thiswrist-mountableultrasonic thickness gauge has been designed for theprofessional diver and can be worn on the forearm, providing an invaluable freehandwhileperforming thickness surveysunderwater.

Rated to a depth of 300 metres, it delivers accurate meter readings,andisreliableandsimpletouse.TheCygnusDIVEunderwaterthicknessgaugecanmeasurethroughcorrosionandcoatingsupto20mmthick(whenin‘Deep-Coat’mode)usingSingleCrystalprobes.

Every diver needs adequate equipment. IHC Hytech candeliverawiderangeofpersonalgearforspecificdivingtasks.This can vary fromhelmets andmasks, to suits, harnesses,knivesandotheraccessories.

Suits and undersuitsA suit is an important garment to protect a diver from underwater environments. These can vary, so differentversions are available, such as constant volume suits, dry suits,hotwatersuitsandsuitsmadeforheavy-dutyworkorusage in contaminatedwaters. Using the right undersuit isalsoessential.TheundergarmentssuppliedbyIHCHytechareprovenbyyearsoffieldtestingbytheNorwegianNavy,theBritishAntarcticSurveyDiveTeam,theFrenchMarinesandthe Danish Navy. They are designed using high-technologyfabrics andhavebeen tested in realdiving conditions fromtheArctictotheAntarctic.Matchingboots,glovesandhoodsarealsoavailable.

Harnesses and jacketsSafetyharnessesusedtobecomplicatedandtimeconsumingto put on. However, IHC Hytech harnesses have beendeveloped to reduce the time and complication involvedin putting on safety/recovery harnesses, bail-out bottleharnessesandweightbelts.Thestrongbasematerialoftheharnessdistributestheloadacrossthebody.

Diver equipped with a helmet, harnass and suit

Products

Personal gear

IHC Hytech 21

manufacturer’slongtraditionofprovidingthehighestqualityandsuperiorperformance.TheQuad-Valve™exhaustsystemhas less breathing resistance than the older single-valve exhaustandprovidesanextremelydryhelmet.Thissystemis recommended for diving in biologically contaminated water.TheSuperFlow®350regulatorisaprovendesignthatprovidesexcellentbreathingcharacteristicsoverawiderangeofdepths.TheKirbyMorgan®37isoneofthemostpopularintheworld.Aruggeddivinghelmetwithatraditionaldesign,it is considered to be the standard of the commercial diving industry.

Kirby Morgan® 37SSFor divers requiring ametal helmetwith the sleek style ofthe37,thenewstainless-steelKirbyMorgan®37SShelmetisideal.Itfeaturesastainless-steelshell,aswellasastainless-steelsideblock,helmetring,benttube,handleandotherkeycomponents. No refinishing is required if the surface getsscratchedorgouged.TheSuperFlow®350isstandardonthishelmet. The Kirby Morgan® 37SS features a quick-changecommunications module, available with either bare wirepostsorawaterproofconnector.Thisallowsforeasy,efficientmaintenanceofthehelmet’scommunications.

IHC Hytech is an official supplier of Kirby Morgan divinghelmets, full-face and band masks, and an official repaircentreforallmaintenanceonthisequipment.Thecompany’scertified KMDSI instructor is licensed to give basic repairtechnician training and refresher training. After this,participantsareallowedtoperformsmallmaintenanceworkandrepairstotheirownhelmetsandbandmasks.

The SuperLite® 27®TheSuperLite®27®istheresultofyearsofresearchandtesting.Thedesigngivestheworkingdiverareliableandextremelycomfortablehelmet.TheSuperFlow®350regulatorusedonthe SuperLite® 27®, provides outstanding performance. Itfeaturesadiver-adjustablesystemsothattheregulatorcanbe ‘tuned’ during the dive according to theworkload. Thisadjustmentalsoallowsthedivertosettheregulatorasthesupply pressure varies, which is especially important when working with a low-pressure compressor. The diver is alsoprovided with an internally adjustable chin support. This,alongwiththeadjustableneckpadonthelockingcollar,givesthediveracomfortableandsecurecustomfit.

The Kirby Morgan® 37 TheKirbyMorgan®37issimilartotheSuperLite®27®buthasalargershell.ItalsoincludestheQuad-Valve™ExhaustSystem.The Kirby Morgan® 37 diving helmet continues with the

Diver wearing a Kirby Morgan ® 37 helmet Divers wearing viking suits

Cygnus DIVE Mk2

22 IHC Hytech

Maintenance managementRoyalIHCaimstoassistoffshoreoperatorsbyimprovingtheirsystemavailabilityinthemostefficientway.Thiscanbedonewithasingleserviceoffering,suchasconditionmonitoring,technicalsurveysorothermaintenancetasks.Itcanalsobeachievedbyanintegrationofseveraldifferentservicesfromthecompany’slife-cyclesupportprogramme.

Spare parts and component repairRoyal IHC wants to be prepared for every eventuality and provide limitless logistical support to its customers. Thisincludesattentiontosystemavailabilitywiththeimmediatesupply of spare parts and repair of components.With thisapproach,thecompleteRoyalIHCglobalnetworkofqualifiedservice technicians, sourcing officers and stock locations isavailabletoallcustomers.

Dry docking and ship repairRoyalIHC’steamofexpertsoffersahighlevelofknowledgeand expertise to manage dry dockings, ranging fromsupervision of the repair yard to the performance of complete dockingsandshiprepairs.Alldrydockingservicesarefocusedonkeepingtheperiodofworkasshortaspossibleaccordingto forecastedbudgetsandplanning. Experience shows thatthecorrectscopeofworkandsolidpreparation–especiallyformajorrepairsanddrydockings–areessentialforefficientperformance.

RoyalIHCcustomersknowthattheycanrelyonadedicatedandcomprehensiveglobalserviceofferingforthelifecycleoftheirinvestment. This not only helps to extend the lifespan of thevessel or equipment, but also to maintain the correct and safe operationofallRoyalIHCproductsonboard.

As the technology innovator, Royal IHC has the ability to enhance thereliabilityandefficiencyofitssystems,whichinturnbooststheproductivityof itscustomers’ investments.Thecompany’slife-cycle support maximises the uptime and return oninvestment,andthereforereducesthetotalcostofownership.

Concepts, design and buildingRoyal IHC’s highly qualified life-cycle support personnel canprovide new or improved concepts for complete systems and components, aswell as project evaluation and advice on theselectionofequipment.Thecompany’steamofexpertsdesignsoptimalvesselsandequipmentbasedoncustomerrequirementsandtheirdesign,buildingandoperationalexperience.

TrainingIn the months leading up to delivery, Royal IHC enables its customers to bring their crew on board and become acquainted with the vessel, and gradually assume control. As a result,the vessels are fully deployable from their maiden voyage, maximising the value of Royal IHC customers’ investments.Training is offered with the use of simulators to allow crewmembers to become familiarised with all of the equipment on board, ranging from the complete vessel management and DP systems,tothesafeandefficientuseofthemissionequipment.

Training in IHC Hytech equipment

Life-cycle support

IHC Hytech 23

Life-cycle engineeringWith all vessels fully engineered in 3D models and a full set of engineering documents available, Royal IHC has a unique starting position to accurately and quickly provideengineering support for all requests. Royal IHC engineerscan liaise with original vessel designers regarding complexengineeringissues.

RenovationsTherenovationofvesselsandequipmentisacomplexprocess.RoyalIHCpossessesexpertknowledgetoresearch,engineerand install to such a high standard that these measures will optimisetheequipment.Thisresultsinthestartofanewlifecycleforthevesselortheextensionoftheexistinglifecycle.

Component repair

IHC Hytech B.V.

Ramgatseweg 27, 4941VNRaamsdonksveerTheNetherlands

T+31162522202

hytech@royalihc.comwww.royalihc.com/www.ihchytech.com

Allrigh

tsre

served

.Rep

rodu

ction

inanyfo

rmorbyanym

eansisnota

llow

ed,

with

outp

riorpermission

inwritin

gfrom

RoyalIH

C.V2