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Accumulator Technology. E 3.000.14/03.16 1 Accumulator Technology. E 3.000.14/03.16 1. HYDAC ACCUMULATOR TECHNOLOGY FLUID ENGINEERING EFFICIENCY VIA ENERGY MANAGEMENT. HYDAC Accumulator Technology has over 50 years' experience in research & development, design and production of Hydac accumulators. Bladder, piston, diaphragm and metal bellows accumulators from HYDAC together form an unbeatable range and as components or units, support hydraulic systems in almost all sectors. The main applications of our accumulators are: z Energy storage, z Emergency and safety functions, z Damping of vibrations, fluctuations, pulsations (pulsation damper), shocks (shock absorber) and noise (silencer), z Suction flow stabilisation, z Media separation, z Volume and leakage oil adjustment, z Weight equalization, z Energy recovery. Using accumulators improves the performance of the whole system and in detail this has the following benefits: z Improvement in the functions z Increase in service life z Reduction in operating and maintenance costs z Reduction in pulsations and noise On the one hand, this means greater safety and comfort for operator and machine. On the other hand, HYDAC accumulators enable efficient working in all applications. 2. QUALITY In conjunction with the customer service department at HYDAC's headquarters, Basic criteria, such as: Quality, safety and reliability are paramount service is possible worldwide. z for all HYDAC accumulator components. Design pressure, HYDAC's worldwide distributor network z Design temperature, They comply with the current regulations means that trained staff are close at hand (or standards) for pressure vessels in the to help our customers. z Fluid displacement volume, individual countries of installation. z Discharge / Charging velocity, In taking delivery of a HYDAC hydraulic z Fluid, accumulator therefore, the customer is This ensures that HYDAC customers have the support of an experienced workforce z Acceptance specifications and also assured of a high-quality accumulator product which can be used in every both before and after sale. z Installation options country in the world, depending on the are important parameters required for certification. sizing the correct accumulator. For more details, please turn to Section 4. In addition the knowledge developed by our accumulator specialists will help to select the right type of accumulator. The All the processes involved, from comprehensive range of HYDAC development, engineering and production accessories simplifies installation and to approval and delivery are defined by maintenance according to the HYDAC's certified management system specification. and the relevant international accreditation for the manufacture of pressure vessels. E 3.000.14/03.16 2 Catalogue CONTENTS Page section 1. HYDAC ACCUMULATOR TECHNOLOGY 2 E 3.000 2. QUALITY 2 3. SAFETY INFORMATION 4 4. REGULATIONS 5 5. PRODUCT OVERVIEW 6 – 8 5.1. BLADDER ACCUMULATORS 5.1.1 Low pressure E 3.202 5.1.2 Standard E 3.201 5.1.3 High pressure E 3.203 5.2. PISTON ACCUMULATORS 5.2.1 Standard E 3.301 5.2.2 Series SK280 E 3.303 5.2.3 High pressure E 3.302 5.3. DIAPHRAGM ACCUMULATORS E 3.100 5.4. METAL BELLOWS ACCUMULATORS E 3.304 5.5. HYDRAULIC DAMPERS E 3.701 5.6. SPECIAL ACCUMULATORS 5.7. ACCUMULATOR STATIONS E 3.653 5.8. ACCUMULATOR ACCESSORIES 5.8.1 Hydraulic accumulators with back-up nitrogen bottles E 3.553 5.8.2 Universal charging and testing unit E 3.501 5.8.3 Safety and shut-off block E 3.551 5.8.4 Safety equipment for accumulators E 3.552 5.8.5 Supports for hydraulic accumulators E 3.502 5.8.6 ACCUSET SB E 3.503 6. INDUSTRIES AND APPLICATIONS 9 – 10 7. / 8. WEBSITE / SPECIFICATION FORMS 10 – 17 9. SIZING 18 – 19 10. NOTE 19 E 3.000.14/03.16 3 3. SAFETY INFORMATION Manufacturers of hydraulic accumulators 3.1. RISK OF EXCESSIVE and products must observe the following Accumulators are closed vessels which are principles: PRESSURE designed and built to hold pressurized Products: fluids. They are charged with nitrogen z Removal or reduction of risks, insofar as which is separated from the fluid section this is reasonably possible, Safety and shut-off block for the fluid side by a piston, bladder or diaphragm. z Application of appropriate protective in various sizes and versions. Hydraulic accumulators are exclusively measures against risks which cannot be See catalogue section: designed to store and then discharge eliminated, z Safety and Shut-off Block SAF/DSV pressure fluids. z If required, training of the users on No. 3.551 The regulations for commissioning and the residual risks and instructions Gas safety valve and gas safety block for operating hydraulic accumulators which on appropriate special measures for the gas side are in force at the place of installation must reducing the risks during installation and/ Bursting discs for gas and fluid sides be observed. The plant operator is solely or operation. See catalogue section: responsible for ensuring compliance with For safe handling and operation, the these regulations. operator must draw up a risk assessment z Safety Equipment Relevant instructions are provided in the for the installation site, particularly in for Hydraulic Accumulators Operating Manuals for our products. combination with other components and No. 3.552 risks. 3.2. RISK OF RISE IN The resulting measures must be implemented accordingly. TEMPERATURE In the case of fundamental risks affecting Products: hydraulic accumulators, e.g. Safety and Shut-off Block with solenoid- z Excessive pressure and operated valve (open when de-energised) in conjunction with temperature monitoring. z Increase in temperature (in the event of fire) See catalogue section: z we already have the relevant products Safety and shut-off block SAF/DSV available. No. 3.551 or on request On no account must any welding, soldering Temperature fuses or mechanical work be carried out on the See catalogue section: accumulator shell. After the hydraulic line z Safety Equipment has been connected it must be completely for Hydraulic Accumulators vented. Work on systems with hydraulic No. 3.552 accumulators (repairs, connecting pressure gauges etc) must only be carried out once the pressure and the fluid have been released. E 3.000.14/03.16 4 4. REGULATIONS 4.2.2 CERTIFICATE CODE = P European member states Certificate (KHK certificate) and EFTA states code 4.1. EUROPEAN PRESSURE For the Japanese market, HYDAC (AKZ) EQUIPMENT DIRECTIVE Technology GmbH has had approval as Austria a "Self Inspecting Manufacturer" since (PED) the year 2000. Consequently, HYDAC Belgium The European Directive 2014/68/EU is authorized to manufacture and test Bulgaria will come into effect in July 2016. It will pressure vessels for the Japanese market Cyprus replace Directive 97/23/EC and will and to import them into Japan. Czech Republic govern the design, fabrication, conformity 4.2.3 CERTIFICATE CODE = A9 Denmark assessment and placing on the market of Estonia pressure equipment and assemblies with (MANUFACTURER LICENSING CHINA) Finland a maximum permitted pressure of more Since 1998 HYDAC Technology GmbH has France than 0.5 bar. It guarantees free movement had approval from the Chinese authority of goods within the European Community. Germany "SELO" as a manufacturer of pressure Great Britain The EU member states must not prohibit, vessels and valves. HYDAC is therefore restrict or obstruct the placing on the authorized to import welded bladder, piston Greece market and the commissioning of pressure and diaphragm accumulators, and safety Hungary equipment on account of pressure-related valves, into the Chinese market. Iceland hazards, if the equipment complies Ireland with the requirements of the pressure 4.2.4 CERTIFICATE CODE = A11 U equipment directive and has the CE mark, (KGS code) Italy and is subject to a conformity assessment. Since concluding the registration Latvia Lithuania Hydraulic accumulators with a capacity of procedure in 2012 HYDAC Technology V ≤ 1 litre, a maximum permitted pressure GmbH is authorized to place pressure Luxembourg PS ≤ 1000 bar and a pressure capacity vessels and safety equipment on the Malta PS • V ≤ 50 bar • l for gases of fluid group Korean market according to the Korean Netherlands 2 (non-hazardous fluids) are subject Gas Safety (KGS) Code for Korea. Norway to Article 3, section 3 of the European 4.2.5. CERTIFICATE CODE = A6 Poland Pressure Equipment Directive and do not (TR-CU) Portugal receive the CE mark. Since 2014, regulation TR-CU 032/2014 Romania Inspection of the equipment and (technical regulation of the customs union Slovakia "On the safety of pressure equipment") has installation, operational safety and repeat Slovenia testing are controlled as before by national applied for the countries of the Eurasian laws. Economic Community. Spain Sweden The equipment relating to safety is HYDAC Technology GmbH has been described in AD2000, ISO 4126 and certified in accordance with the regulation Switzerland EN 14359. to supply its product range. The repeat testing intervals are stipulated in the new German health & safety 4.3. CERTIFICATE TABLE Selection of other countries Certificate regulations. The following table lists the codes code recommended for use in the model code (AKZ) 4.2. OTHER REGULATIONS for different countries of installation. Australia F 1) Pressure accumulators which are installed The country of installation must be stated Belarus A6 overseas (outside the EU), are supplied at the time of ordering (see code in Model Canada S1 1) with the relevant test certificates required Code for the particular product: Certificate
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