Hydac Accumulator Catalog

148 Pages·2012·4.34 MB·English

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00 HYDAC TECHNOLOGY Industriegebiet
18. GMBH 66280 Sulzbach/Saar
EF Germany
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1. HYDAC ACCUMULATOR TECHNOLOGY
FLUID ENGINEERING EFFICIENCY THROUGH ENERGY MANAGEMENT.
HYDAC Accumulator Technology has over
45 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 Design pressure, for all HYDAC accumulator components.
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
z Fluid displacement volume, to help our customers.
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
z Acceptance specifications and also assured of a high-quality accumulator the support of an experienced workforce
product which can be used in every both before and after sale.
z Mounting 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.
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Catalogue
CONTENTS Page Page
section
1. HYDAC ACCUMULATOR TECHNOLOGY 2 E 3.000 2
2. QUALITY 2
3. SAFETY INFORMATION 4
4. REGULATIONS 5
5. PRODUCT OvERvIEw 6 – 8
5.1. BLADDER ACCUMULATORS
5.1.1 Standard E 3.201 19
5.1.2 Low pressure E 3.202 27
5.1.3 High pressure E 3.203 35
5.2. PISTON ACCUMULATORS
5.2.1 Standard E 3.301 39
5.2.2 Series SK280 E 3.303 51
5.3. DIAPHRAGM ACCUMULATORS E 3.100 55
5.4. METAL BELLOWS ACCUMULATORS E 3.304 61
5.5. HYDRAULIC DAMPERS E 3.701 67
5.6. SPECIAL ACCUMULATORS
5.7. ACCUMULATOR STATIONS E 3.653 85
5.8. ACCUMULATOR ACCESSORIES
5.8.1 Hydraulic accumulators with back-up nitrogen bottles E 3.553 91
5.8.2 Universal charging and testing unit E 3.501 97
5.8.3 Safety and shut-off block E 3.551 107
5.8.4 Safety equipment for hydraulic accumulators E 3.552 129
5.8.5 Supports for hydraulic accumulators E 3.502 135
5.8.6 ACCUSET SB E 3.503 143
6. INDUSTRIES AND APPLICATIONS 9 – 10
7. / 8. wEBSITE / SPECIFICATION FORMS 10 – 16
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3. SAFETY INFORMATION Similarly the manufacturer of products 3.1. RISK OF EXCESSIVE
incorporating hydraulic accumulators
Hydraulic accumulators are pressure PRESSURE
must proceed accordingly (see Pressure
vessels as defined in the Pressure
Equipment Directive 97/23/EC) and the Products:
Equipment Directive 97/23/EC. They are
following principles must be adhered to Safety and shut-off block for the fluid side
closed vessels which are designed and
and in this order of priority: in various sizes and versions.
built to store pressurized fluids. Hydraulic
accumulators are charged with nitrogen z Removal or reduction of risks, insofar as See catalogue section:
which is separated from the fluid section this is reasonably possible, z Safety and shut-off block SAF/DSV
by a piston, bladder or diaphragm. z Application of appropriate protective No. 3.551
Hydraulic accumulators are specifically measures against risks which cannot be
Gas safety valve and gas safety block for
designed to store and then discharge eliminated,
the gas side
pressurized fluids. z If required, training of the users on
Bursting discs for gas and fluid sides
The regulations for commissioning and the residual risks and instructions
operating hydraulic accumulators which on appropriate special measures for See catalogue section:
are in force at the place of installation reducing the risks during installation and/ z Safety equipment for hydraulic
must be observed. The plant operator or operation. accumulators
is exclusively responsible for ensuring For safe handling and operation, the No. 3.552
compliance with these regulations.
operator must draw up a risk assessment 3.2. RISK OF RISE IN
Relevant instructions are provided in the for the installation site, particularly in
Operating Manuals for our products. combination with other components and TEMPERATURE
As regards production and placing on risks. Products:
the market, HYDAC has carried out a The resulting measures must be Safety and Shut-off Block with solenoid-
comprehensive risk assessment. implemented accordingly. operated valve (open when de-energised)
In the case of fundamental risks affecting in conjunction with temperature monitoring.
hydraulic accumulators, e.g. See catalogue section:
z Excessive pressure and z Safety and shut-off block SAF/DSV
z Increase in temperature No. 3.551 or on request
(in the event of fire) Temperature fuses
we already have the relevant products See catalogue section:
available. z Safety equipment for hydraulic
On no account must any welding, soldering accumulators
or mechanical work be carried out on the No. 3.552
accumulator shell. After the hydraulic line
has been connected it must be completely
vented. Work on systems with hydraulic
accumulators (repairs, connecting
pressure gauges etc) must only be carried
out once the pressure and the fluid have
been released.
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4. PRESSURE 4.3. CERTIFICATE CODE = P Rest of the world Certificate
EQUIPMENT DIRECTIvE (KHK certificate) code
(AKz)
REGULATIONS For the Japanese market, HYDAC
DZ Algeria U 3)
Technology GmbH has had approval as
On 29 November 1999 the Directive AR Argentina U 3)
a "Self Inspecting Manufacturer" since
97/23/EC (Pressure Equipment Directive)
the year 2000. Consequently, HYDAC AU Australia F 1)
came into force and since 29 May 2002
is authorized to manufacture and test BS Bahamas E 3)
has been exclusively binding in Europe.
This directive applies to the design, pressure vessels for the Japanese market BB Barbados U 3)
manufacture, conformity assessment and to import them into Japan. BY Belarus A12
and placing on the market of pressure 4.4. CERTIFICATE CODE = A9 BM Bermuda U 3)
equipment and assemblies with a BO Bolivia U 3)
(MANUFACTURER
maximum permitted pressure of over BR Brazil U 3)
0.5 bar. It guarantees the free movement LICENSING CHINA)
CE Canada S1 2)
of goods within the European Community.
Since 1998 HYDAC Technology GmbH has CL Chile U 3)
EU member states must not prohibit,
had approval from the Chinese authority
CN China A9
restrict or obstruct the placing on the
"SELO" as a manufacturer of pressure
market and the commissioning of pressure CR Costa Rica E 3)
vessels and valves. HYDAC is therefore
equipment on account of pressure-related EC Ecuador U 3)
authorized to import welded bladder, piston
hazards, if the equipment complies and diaphragm accumulators, and safety ET Egypt U 3)
with the requirements of the pressure valves, into the Chinese market. HK Hong Kong A9
equipment directive and has the CE mark, In conjunction with this approval, it is IS Iceland U 3)
and is subject to a conformity assessment.
absolutely essential to provide the details IN India U 3)
Hydraulic accumulators with a capacity of of the end user/dealer when placing the ID Indonesia U 3)
v ≤ 1 litre, a maximum permitted pressure order. IL Israel U 3)
PS ≤ 1000 bar and a pressure capacity
PS • v ≤ 50 bar • l for gases of fluid group 4.4. CERTIFICATE TABLE JP Japan P
2 (non-hazardous fluids) are subject to The following table lists the codes used in JO Jordan U 3)
Article 3, Paragraph 3 of the European the model code for different countries of KR Korea (Republic) U 3)
Pressure Equipment Directive and do not installation. KW Kuwait U 3)
receive the CE mark. LB Lebanon U 3)
Inspection of the equipment and European member states Certificate LY Libya U 3)
installation, operational safety and repeat code MY Malaysia U 3)
testing are controlled as before by national (AKz) MX Mexico U 3)
laws. AT Austria
NZ New Zealand T
The equipment relating to safety is BE Belgium NG Nigeria U 3)
described in AD2000, ISO 4126 and BG Bulgaria
NO Norway U
EN 14359. The repeat testing intervals CY Cyprus
PK Pakistan U 3)
are stipulated in the new German health & CZ Czech Republic
PE Peru U 3)
safety regulations.
DK Denmark
U PH Philippines U 3)
4.1. OVERSEAS EE Estonia
PR Puerto Rico E 3)
FI Finland
Pressure accumulators which are installed RU Russia A6
overseas (outside the EU), are supplied FR France SA Saudi Arabia U 3)
with the relevant test certificates required DE Germany SG Singapore U 3)
in the country of installation. GB Great Britain
ZA South Africa U 3)
The country of installation must be stated GR Greece SD Sudan U 3)
at the time of ordering (see code in Model HU Hungary U 3)
CH Switzerland U
Code for the particular product: Certificate IE Ireland (Republic)
SY Syria U 3)
Code).
IT Italy
TW Taiwan U 3)
LV Latvia
TH Thailand U 3)
HYDAC pressure vessels can be supplied LT Lithuania
TN Tunisia U 3)
with virtually any test certificate. Please LU Luxembourg
TR Turkey U
note that the permitted operating pressure MT Malta
can differ from the nominal pressure. UA Ukraine A10
NL Netherlands
Depending on the authority, the different PL Poland U US USA S 3)
YU Yugoslavia (former) U 3)
material requirements must be observed.
PT Portugal
4.2. CERTIFICATE CODE = S RO Romania 1) approval required in the individual territories
2) approval required in the individual provinces
(U STAMP) SK Slovakia
3) alternative certificates possible
SI Slovenia
HYDAC Technology GmbH has had
ES Spain
authorization since 1985 to use the
Code Symbol "U STAMP" on pressure SE Sweden
vessels which have been manufactured in
conformity with the ASME specifications
and to market these using the "NB"
symbol, in the jurisdiction (area of
application) of “The National Board of
Boiler and Pressure Vessel Inspectors“.
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5. PRODUCT OvERvIEw
5.1. BLADDER
ACCUMULATORS
5.1.1 Standard Benefits of HYDAC bladder accumulators:
Nominal volumes: z High discharge speeds,
0.5 ... 200 l
z No pressure differential between fluid
Permitted operating pressure: and gas sides,
330 ... 550 bar
z Compact, maintenance-free,
z High charging and discharge
frequencies.
5.1.2 Low pressure
Nominal volumes:
2.5 ... 450 l
Permitted operating pressure:
up to 40 bar
5.1.3 High pressure
Nominal volumes:
1 ... 54 l
Permitted operating pressure:
5 ... 1000 bar
5.2. PISTON
ACCUMULATORS
5.2.1 Standard Benefits of HYDAC piston accumulators:
Nominal volumes: z Minimal pressure differential between
up to 3300 l the fluid and gas sides,
Permitted operating pressure: z Large usable volume,
210 ... 350 bar
z Variable installation position,
(higher pressures on request)
z Monitoring of the piston position possible
using various systems,
z Particularly suitable for back-up
configurations,
z High flow rates possible,
5.2.2 Series SK280
Nominal volumes: z No sudden discharge of gas when seals
0.16 ... 5 l are worn.
Permitted operating pressure:
280 bar
5.3. DIAPHRAGM
ACCUMULATORS
5.3.1 Diaphragm accumulators Benefits of HYDAC diaphragm
weld type accumulators:
Nominal volumes: z Design optimised for function and
0.075 ... 4 l weight,
Permitted operating pressure: z Choice of installation positions,
50 ... 330 bar z No pressure differential between fluid
side and gas side,
Screw type z Low-maintenance and long service life.
12 Nominal volumes:
03. 0.1 ... 4 l
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0.
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5.4. METAL BELLOWS
ACCUMULATORS
5.4.1 Metal bellows accumulators Benefits of the HYDAC metal bellows
for heavy diesel engines accumulator:
Nominal volume: z Gas-tight
3.8 l
z Maintenance-free
Permitted operating pressure:
z Media resistance over a wide range of
50 bar
temperatures
Series: SM50P-...
other models on request
5.5. HYDRAULIC DAMPERS
5.5.1 Dampers Advantages of the HYDAC hydraulic
Nominal volumes: damper:
0.075 ... 450 l z Reduces pressure pulsations,
Permitted operating pressure: z Improves the suction performance of
10 ... 1000 bar displacement pumps,
z Prevents pipe breaks and damage to
valves,
z Protects measuring equipment and its
function in the system,
z Reduces noise level in hydraulic
5.5.2 SILENCER systems,
Permitted operating pressure:
z Reduces maintenance and servicing
330 bar
costs and
z Extends service life of the system.
5.6. SPECIAL
ACCUMULATORS
5.6.1 weight Reduced
Hydraulic Accumulators
Over 80% reduction in weight
compared to equivalent
carbon steel accumulators.
The choice ranges from weight-optimized
accumulators, e.g. by using aluminium,
through to light-weight and ultra light-
weight accumulators.
5.6.2 Spring accumulators
These are fitted with a spring.
The energy is produced from the spring
force, instead of gas.
Further information on request.
5.7. ACCUMULATOR
STATIONS
HYDAC supplies fully assembled
accumulator stations which are ready for
operation, complete with all the necessary
valve controls, fittings and safety
equipment
z as an individual accumulator unit or
z in a back-up version with nitrogen bottles
to increase the effective volume.
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5.8. ACCUMULATOR
ACCESSORIES
5.8.1 Hydraulic accumulators with Using HYDAC nitrogen bottles provides
back-up nitrogen bottles the following benefits:
HYDAC also offers nitrogen bottles which z Cost-effective expansion of the
can be used to back up bladder and piston
accumulator volume and as a result
accumulators. Nitrogen bottles used as
z Smaller accumulators for the same gas
back-ups increase the gas volume in the
volume.
accumulator.
5.8.2 Universal charging and testing
unit FPU-1
Charging hose, pressure gauge and
pressure reducer for HYDAC and other
makes of accumulator, up to 350 bar.
Higher pressures on request
5.8.3 Safety and shut-off block Benefits of the HYDAC Safety and Shut-off
SAF/DSv Block:
Nominal size: 10 ... 50 z Minimum of space and maintenance,
Permitted operating pressure: z Minimum of installation required
400 bar (DSV 350 bar)
(1 SAF replaces as a rule up to 10
Pressure relief valve: individual pipe connections),
Nominal width DN12 z Considerable reduction in installation
time,
z Can be adapted to different types and
also different makes of accumulator, and
z Additional valves (pilot-operated check
valves, flow control valves, etc).
5.8.4 Safety equipment
z Gas safety valve GSV6
z Temperature fuse
z Bursting disc
z Gas safety block Benefits of the HYDAC Gas safety block:
as safety equipment for z A gas safety block simplifies the
HYDAC accumulator products. operation of the hydraulic accumulator
on the gas-side and also provides a
Approval according to Pressure Equipment
means of attaching the above safety
Directive PED and CE mark.
equipment using the various ports.
5.8.5 Supports for Hydraulic
Accumulators
Accumulator sets, clamps and consoles
for efficient mounting of hydraulic
accumulators.
5.8.5 ACCUSET SB
Nominal volumes:
1 ... 50 l
Permitted operating pressure:
330 bar
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6. INDUSTRIES AND 6.1. INDUSTRIAL HYDRAULICS
APPLICATIONS Automotive Industry
HYDAC Technology GmbH is z General industrial hydraulics, e.g. energy
represented in almost all industries storage
of the world which use hydraulic
accumulators.
The main sectors are industrial
Machine tools
hydraulics, mobile technology and
z Support for the hydraulics for tool drive or
process technology.
tool change
Further applications in oil & gas/
z Energy storage in the compact hydraulics of
offshore as well as more energy
machining centres
efficient systems utilizing accumulators
are gaining in importance.
Listed below is a selection of examples Plastics machinery
with accumulators/dampers which are z Accumulator stations for energy storage
typical for these industries: during the injection moulding process
z Pulsation damping on the hydraulic drive
Forming machines
z Accumulators used to store energy to
support the pump
Iron and steel industry
z Accumulator to maintain the pressure in
rolling mills
z Blast furnace hydraulics
Thermal power plants
z Emergency supply for turbine control system
z Pulsation damping on pumps
z Lubrication, control and seal oil supply
wind turbines
z Accumulators in the pitch control system
z Support of the pitch drive
z Accumulators on braking units
Mining machinery
z Hydraulic accumulators, e.g. in suspended
monorails
z Pulsation damping
z Comfort and safety for mobile working
machines
Paper Industry
z Energy storage for emergency functions in
friction bearing hydraulics
z Energy storage in high/low pressure power
units
Test rigs and test systems
z Energy storage on crash test systems
z Pulsation damping on servohydraulic axes
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6.2. MOBILE TECHNOLOGY 6.3. PROCESS TECHNOLOGY
Automotive technology Chemical industry
z Automatic and manual transmission z Energy storage and pulsation damping on dosing
z Automatic clutch systems pumps
z Engine management systems z Suction flow stabilisation on the suction side of
pumps
z Pump noise damping
z Accumulators for turbocharger
emergency lubrication Loading stations / Refineries
z Shock absorption for valve closing
z Pulsation damping on pipelines
Construction Machinery
z Accumulators in braking systems
z Chassis damping
z Bucket damping Offshore / Oil & Gas
z Boom damping on mobile cranes z Accumulators to support valve closing systems
z Energy storage for deep sea rams
z Blow Out Preventers (BOP)
Agricultural and forestry machines
z Front loader damping z Emergency function for safety systems
z Accumulators in tractor suspension z Accumulators on wellhead control systems
systems
z Stone strike protection for ploughs
z Boom suspension on field sprayers
Municipal machines
z Energy storage
z Boom damping
z Pulsation dampers
z Chassis damping
Lifting and material handling
technology
z Noise-damping
z Energy recovery
z Braking system
Shipping
z Water treatment plants
(pump support)
z Pulsation damping on diesel engines
z Heave compensation (cranes)
z Emergency function for lifeboats
7. wEBSITE
Please visit us at the following address:
www.hydac.com.
In addition to Industries, Service and Fluid Engineering,
under Products » Hydraulic Accumulators, you will
find the standard product range and a
comprehensive range of accessories from
HYDAC TECHNOLOGY GmbH.
8. SPECIFICATION FORMS
Our aim is to provide optimum customer service both
before and after purchasing the accumulator.
The following specification forms are designed to
help pre-select the required accumulator/damper or
accessories.
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