Fluids are practically incompressible and cannot therefore store pressure energy. The compressibility of a gas is utilised in hydraulic accumulators for storing fluids. HYDAC diaphragm accumulators are based on this principle, using nitrogen as the compressible medium.Diaphragm accumulators consist of a fluid section and a gas section with the diaphragm acting as a gas-tight separation element.The fluid section is connected to the hydraulic circuit so that the diaphragm accumulator draws in fluid when the pressure increases and the gas is compressed. When the pressure drops, the compressed gas expands and forces the stored fluid into the circuit. Set into the base of the diaphragm is a valve poppet. This shuts off the hydraulic outlet when the accumulator is completely empty and thus prevents damage to the diaphragm.
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Fluids are practically incompressible and cannot therefore store pressure energy. The compressibility of a gas (nitrogen) is utilised in hydraulic accumulators for storing fluids. HYDAC piston accumulators are based on this principle. A piston accumulator consists of a fluid section and a gas section with the piston acting as a gas-proof separation element.The gas section is pre-charged with nitrogen. The fluid section is connected to the hydraulic circuit so that the piston
accumulator draws in fluid when the pressure increases and the gas is compressed. When the pressure drops, the compressed gas expands and forces the stored fluid into the circuit.
Charging sets are used to inflate, check, top-up or vent the nitrogen gas precharge in all accumulators. They are to be screwed to the gas valve or bladder stem and connected to the gas regulator that fits the Nitrogen bottles. They are supplied in a plastic case.
Universal charging set fits most of the hydraulic accumulators available on the market. Maximum working pressure: limited by the maximum operating pressure of the installed pressure limited to 400 bar in any case
Charging sets are used to inflate, check, top-up or vent the nitrogen gas precharge in all accumulators. They are to be screwed to the gas valve or bladder stem and connected to the gas regulator that fits the Nitrogen bottles. They are supplied in a plastic case.
Universal charging set fits most of the hydraulic accumulators available on the market. Maximum working pressure: limited by the maximum operating pressure of the installed pressure limited to 400 bar in any case
Safety Blocks
Are designed to incorporate in a single compact block a variety of functions necessary for the correct operation of a hydraulic system fitted with accumulators. This includes manual and/or electrical drain, isolation, flow control and pressure relief. Channel cross section : 10 mm (DI 10 block), 16 mm (DI 16 block), 20 mm (DI 20 block), 24 mm (DI 24 block), 32 mm (DI 32 block). Maximum working pressure : 330 to 690 Bar depending on models. According with the fluids of group 2 (PED). Options for ATEX compliant blocks construction carbon steel or stainless steel.
The OLAER safety unit has the functions of safety shut-off, block and discharge of the hydropneumatic accumulator and the system to which it is connected. It meets international safety regulations and specifications for hydropneumatic accumulators, in particular the pressure vessel regulations in force in Germany.
Safety Blocks
Are designed to incorporate in a single compact block a variety of functions necessary for the correct operation of a hydraulic system fitted with accumulators. This includes manual and/or electrical drain, isolation, flow control and pressure relief. Channel cross section : 10 mm (DI 10 block), 16 mm (DI 16 block), 20 mm (DI 20 block), 24 mm (DI 24 block), 32 mm (DI 32 block). Maximum working pressure : 330 to 690 Bar depending on models. According with the fluids of group 2 (PED). Options for ATEX compliant blocks construction carbon steel or stainless steel.
The OLAER safety unit has the functions of safety shut-off, block and discharge of the hydropneumatic accumulator and the system to which it is connected. It meets international safety regulations and specifications for hydropneumatic accumulators, in particular the pressure vessel regulations in force in Germany.
Safety Blocks
Are designed to incorporate in a single compact block a variety of functions necessary for the correct operation of a hydraulic system fitted with accumulators. This includes manual and/or electrical drain, isolation, flow control and pressure relief. Channel cross section : 10 mm (DI 10 block), 16 mm (DI 16 block), 20 mm (DI 20 block), 24 mm (DI 24 block), 32 mm (DI 32 block). Maximum working pressure : 330 to 690 Bar depending on models. According with the fluids of group 2 (PED). Options for ATEX compliant blocks construction carbon steel or stainless steel.
The OLAER safety unit has the functions of safety shut-off, block and discharge of the hydropneumatic accumulator and the system to which it is connected. It meets international safety regulations and specifications for hydropneumatic accumulators, in particular the pressure vessel regulations in force in Germany.
Safety Blocks
Are designed to incorporate in a single compact block a variety of functions necessary for the correct operation of a hydraulic system fitted with accumulators. This includes manual and/or electrical drain, isolation, flow control and pressure relief. Channel cross section : 10 mm (DI 10 block), 16 mm (DI 16 block), 20 mm (DI 20 block), 24 mm (DI 24 block), 32 mm (DI 32 block). Maximum working pressure : 330 to 690 Bar depending on models. According with the fluids of group 2 (PED). Options for ATEX compliant blocks construction carbon steel or stainless steel.
The OLAER safety unit has the functions of safety shut-off, block and discharge of the hydropneumatic accumulator and the system to which it is connected. It meets international safety regulations and specifications for hydropneumatic accumulators, in particular the pressure vessel regulations in force in Germany.
Safety Blocks
Are designed to incorporate in a single compact block a variety of functions necessary for the correct operation of a hydraulic system fitted with accumulators. This includes manual and/or electrical drain, isolation, flow control and pressure relief. Channel cross section : 10 mm (DI 10 block), 16 mm (DI 16 block), 20 mm (DI 20 block), 24 mm (DI 24 block), 32 mm (DI 32 block). Maximum working pressure : 330 to 690 Bar depending on models. According with the fluids of group 2 (PED). Options for ATEX compliant blocks construction carbon steel or stainless steel.
The OLAER safety unit has the functions of safety shut-off, block and discharge of the hydropneumatic accumulator and the system to which it is connected. It meets international safety regulations and specifications for hydropneumatic accumulators, in particular the pressure vessel regulations in force in Germany.
The EHV bladder accumulator offers a reliable and efficient solution for storing energy under pressure. Utilizing comprehensive tools and resources including an applications database, CAD/CAM, finite element analysis, reliability studies and simulation we have optimized the design and performance of the accumulator. Parker Olaer bladder accumulators are suitable for use in more than 35 countries (all hydraulic accumulators for Europe are CE marked) and they can meet an extensive range of international and industry approvals. The EHV Series bladder accumulator comes with an O-ring seal fluid port and 7/8” UNF gas connection as standard however other options are available.
The EHV bladder accumulator offers a reliable and efficient solution for storing energy under pressure. Utilizing comprehensive tools and resources including an applications database, CAD/CAM, finite element analysis, reliability studies and simulation we have optimized the design and performance of the accumulator. Parker Olaer bladder accumulators are suitable for use in more than 35 countries (all hydraulic accumulators for Europe are CE marked) and they can meet an extensive range of international and industry approvals. The EHV Series bladder accumulator comes with an O-ring seal fluid port and 7/8” UNF gas connection as standard however other options are available.
The EHV bladder accumulator offers a reliable and efficient solution for storing energy under pressure. Utilizing comprehensive tools and resources including an applications database, CAD/CAM, finite element analysis, reliability studies and simulation we have optimized the design and performance of the accumulator. Parker Olaer bladder accumulators are suitable for use in more than 35 countries (all hydraulic accumulators for Europe are CE marked) and they can meet an extensive range of international and industry approvals. The EHV Series bladder accumulator comes with an O-ring seal fluid port and 7/8” UNF gas connection as standard however other options are available.