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E 30.000.4/01.17Accumulator Technology. Product Catalogue.Accumulator Technology.Product Catalogue.

1.HYDAC ACCUMULATOR TECHNOLOGYFLUID ENGINEERING EFFICIENCY VIA ENERGY MANAGEMENT.HYDAC Accumulator Technology has over50 years' experience in research &development, design and production ofHydac accumulators.Bladder, piston, diaphragm and metalbellows accumulators from HYDACtogether form an unbeatable range and ascomponents or units, support hydraulicsystems in almost all sectors.The main applications of our accumulatorsare:zzEnergy storage,zzEmergency and safety functions,zzDamping of vibrations, fluctuations,pulsations (pulsation damper), shocks(shock absorber) and noise (silencer),zzSuction flow stabilisation,zzMedia separation,zzVolume and leakage oil adjustment,zzWeight equalization,zzEnergy recovery.Using accumulators improves theperformance of the whole system and indetail this has the following advantages:zzImprovement in the functionszzIncrease in service lifezzReduction in operating and maintenancecostszzReduction in pulsations and noiseOn the one hand, this means greatersafety and comfort for operator andmachine.On the other hand, HYDAC accumulatorsenable efficient working in all applications.2.E 3.000.15/01.17Basic criteria, such as:zzDesign pressure,zzDesign temperature,zzFluid displacement volume,zzDischarge / Charging velocity,zzFluid,zzAcceptance specifications and alsozzInstallation optionsare important parameters required forsizing the correct accumulator.In addition the knowledge developed byour accumulator specialists will help toselect the right type of accumulator. Thecomprehensive range of HYDACaccessories simplifies installation andmaintenance according to thespecification.2QUALITYQuality, safety and reliability are paramountfor all HYDAC accumulator components.They comply with the current regulations(or standards) for pressure vessels in theindividual countries of installation.In taking delivery of a HYDAC hydraulicaccumulator therefore, the customer isassured of a high-quality accumulatorproduct which can be used in everycountry in the world, depending on thecertification.For more details, please turn to Section 4.All the processes involved, fromdevelopment, engineering and productionto approval and delivery are defined byHYDAC's certified management systemand the relevant international accreditationfor the manufacture of pressure vessels.In conjunction with the customer servicedepartment at HYDAC's headquarters,service is possible worldwide.HYDAC's worldwide distributor networkmeans that trained staff are close at handto help our customers.This ensures that HYDAC customers havethe support of an experienced workforceboth before and after sale.

Page1.HYDAC ACCUMULATOR TECHNOLOGY22.QUALITY23.SAFETY INFORMATION44.REGULATIONS55.PRODUCT OVERVIEW5.1.BLADDER ACCUMULATORS5.1.1CataloguesectionPageE 3.0002Low pressureE 3.202215.1.2StandardE 3.201295.1.3High pressureE 3.203375.2.PISTON ACCUMULATORS5.2.1StandardE 3.301415.2.2Series SK280E 3.303535.2.3High pressureE 3.302575.3.DIAPHRAGM ACCUMULATORSE 3.100635.4.METAL BELLOWS ACCUMULATORSE 3.304715.5.HYDRAULIC DAMPERSE 3.701775.6.SPECIAL ACCUMULATORS5.7.ACCUMULATOR STATIONSE 3.653975.8.ACCUMULATOR ACCESSORIES5.8.1Hydraulic accumulators with back-up nitrogen bottlesE 3.5531035.8.2Charging and testing unitE 3.5011115.8.3Safety and shut-off blockE 3.5511235.8.4Safety equipment for accumulatorsE 3.5521475.8.5Supports for hydraulic accumulatorsE 3.5021555.8.6ACCUSET SBE 3.5031656.INDUSTRIES AND APPLICATIONS6–89 – 107. / 8. WEBSITE / SPECIFICATION FORMS10 – 179.SIZING18 – 1910.NOTE19E 3.000.15/01.17CONTENTS3

3.SAFETY INFORMATIONE 3.000.15/01.17Accumulators are closed vessels which aredesigned and built to hold pressurizedfluids. They are charged with nitrogenwhich is separated from the fluid sectionby a piston, bladder or diaphragm.Hydraulic accumulators are specificallydesigned to store and then dischargepressurized fluids.The regulations for commissioning andoperating hydraulic accumulators whichare in force at the place of installation mustbe observed. The plant operator is solelyresponsible for ensuring compliance withthese regulations.Relevant instructions are provided in theOperating Instructions for our products.4Manufacturers of hydraulic accumulatorsand products with hydraulic accumulatorsmust observe the following principles:zzRemoval or reduction of risks, insofar asthis is reasonably possible,zzApplication of appropriate protectivemeasures against risks which cannot beeliminated,zzIf required, training of the users onthe residual risks and instructionson appropriate special measures forreducing the risks during installation and/or operation.For safe handling and operation, theoperator must draw up a risk assessmentfor the installation site, particularly incombination with other components andrisks.The resulting measures must beimplemented accordingly.In the case of fundamental risks affectinghydraulic accumulators, e.g.zzExcessive pressure andzzIncrease in temperature (in the event offire)we already have the relevant productsavailable.On no account must any welding, solderingor mechanical work be carried out on theaccumulator shell. After the hydraulic linehas been connected it must be completelyvented. Work on systems with hydraulicaccumulators (repairs, connectingpressure gauges etc.) must only be carriedout once the fluid pressure has beenreleased.3.1. RISK OF EXCESSIVEPRESSUREProducts:Safety and shut-off block for the fluid sidein various sizes and versions.See catalogue section:zzSafety and Shut-off Block SAF/DSVNo. 3.551Gas safety valve and gas safety block forthe gas sideBursting discs for gas and fluid sidessee catalogue section:zzSafety Equipment forHydraulic AccumulatorsNo. 3.5523.2. RISK OF RISE INTEMPERATUREProducts:Safety and Shut-off Block with solenoidoperated valve (open when de-energised)in conjunction with temperature monitoring.See catalogue section:zzSafety and Shut-off Block SAF/DSVNo. 3.551 or on requestTemperature fusessee catalogue section:zzSafety Equipment forHydraulic AccumulatorsNo. 3.552

4.REGULATIONS4.1. EUROPEAN PRESSUREEQUIPMENT DIRECTION(PED)The European Directive 2014/68/EUwill come into effect in July 2016. It willreplace Directive 97/23/EC and willgovern the design, fabrication, conformityassessment and placing on the market ofpressure equipment and assemblies witha maximum permitted pressure of morethan 0.5 bar. It guarantees free movementof goods within the European Community.The EU member states are not permittedto prohibit, restrict or hinder pressureequipment being placed on the market andput into service on the basis of pressurerelated risks, provided that the equipmentin question meets the requirements of theEuropean Pressure Equipment Directive,has undergone a conformity assessmentand is labelled with a CE marking.Hydraulic accumulators with a capacity ofV 1 l and a maximum permitted pressurePS 1000 bar or with a pressure capacityPS V 50 bar l for gases of fluid group2 (non-hazardous fluids) are subjectto Article 4, section 3 of the EuropeanPressure Equipment Directive and do notreceive the CE marking.Inspection of the equipment andinstallation, operational safety and repeattesting are controlled as before by nationallaws.The equipment relating to safety isdescribed in AD2000, ISO 4126 andEN 14359.The repeat testing intervals are stipulatedin the new German industrial safetyregulations.4.2. OTHER REGULATIONSPressure accumulators which are installedoverseas (outside the EU), are suppliedwith the relevant test certificates requiredin the country of installation.HYDAC pressure vessels can be suppliedwith virtually any test certificate.Depending on the authority, the differentmaterial requirements must be observedDetails of some selected approvals are asfollows:4.2.2 C ERTIFICATE CODE P(KHK certificate)For the Japanese market, HYDACTechnology GmbH has had approval asa "Self Inspecting Manufacturer" sincethe year 2000. Consequently, HYDACis authorized to manufacture and testpressure vessels for the Japanese marketand to import them into Japan.4.2.3 C ERTIFICATE CODE A9(MANUFACTURER LICENSINGCHINA)Since 1998 HYDAC Technology GmbHhas had approval from the Chineseauthority "SELO" as a manufacturer ofpressure vessels and valves. HYDAC istherefore authorised to import bladder,piston and diaphragm accumulators, andsafety valves, into the Chinese market.4.2.4 C ERTIFICATE CODE A11(KGS code)Since concluding the registrationprocedure in 2012 HYDAC TechnologyGmbH is authorized to supply pressurevessels and safety equipment accordingto the Korean Gas Safety (KGS) Code forKorea.4.2.5. CERTIFICATE CODE A6(TR-CU)Since 2014, regulation TR‑CU 032/2014(technical regulation of the customs union"on the safety of pressure equipment") hasapplied for the countries of the EurasianEconomic Community.HYDAC Technology GmbH has beencertified in accordance with the regulationto supply its product range.4.3. CERTIFICATE TABLEThe following table lists the codesrecommended for use in the model codefor different countries of installation.The country of installation must be statedat the time of ordering (see code in ModelCode for the particular product:Certificate Code).Countries not included in the list maybe possible on request. Alternative testcertificates and differing values may alsobe possible on request.European member statesand EFTA statesAustriaBelgiumBulgariaCyprusCzech RepublicDenmarkEstoniaFinlandFranceGermanyGreat ficatecode (AKZ)Selection of othercountriesAustraliaBelarusCanadaChinaHong KongJapanKorea (Republic)New ZealandRussiaSouth AfricaTurkeyUkraineUSACertificatecode (AKZ)F 1)A6S1 1)A9A9PA11TA6S2UA10SU1)Such pressure equipment may beplaced on the market in the jurisdiction(application area) of "the National Board ofBoiler and Pressure Vessel Inspectors".Registration required in the individual territories orprovincesothers on request4.4. TRANSPORTREGULATIONS FORPRESSURE VESSELSThe transport of gas-charged accumulatorsmust be carried out with the utmostcare and in compliance with all relevanttransport safety regulations (e.g. inthe public domain, dangerous goodsregulations, etc.).E 3.000.15/01.174.2.1 CERTIFICATE CODE S (ASME)Since 1985, HYDAC Technology GmbHhas been authorized to label pressureequipment that was manufactured incompliance with the ASME regulations withthe "ASME" certification mark.5