2
Parker Hannifin
Cylinder Division
Europe
Catalogue HY07-1235/UK
Bladder Accumulators
Series BAE
Introduction
About Parker Hannifin
Parker Hannifin is the global leader in motion and control
technologies, partnering with its customers to increase their
productivity and profitability. The company employs more
than 61,000 people in 48 countries around the world, providing
customers with technical excellence and first class customer
service.
Catalogues describing our standard products are available from
your nearest Parker sales office – please see the rear cover of
this catalogue for addresses. Where an application demands a
non-standard approach, special products can be designed to
order – our engineers will be pleased to advise.
Visit us at www.parker.com
Contents Page
Technical Data 2
Design Features and Benefits 3
Models, Capacities and Dimensions 3
Flow Rates 3
Repair Kits and Parts List 4
Bladder Compounds 5
Port Sizes 5
Fluid Port Adapters 5
Charging and Gauging Assemblies 5
Mounting Accessories 6
Model Numbers 7
How to Order 7
Why use a Bladder Accumulator?
• storesenergyunderpressure
• dampsoutpumppulsationandowuctuations
• improvessystemefciency
• supplementspumpdelivery
• suppliespowerinemergency
• absorbshydraulicshocks
• compensatesforpressurechangesincasesofthermalstress
• verycontaminanttolerant
• suitableforusewithlow-lubricityuids
• fastresponsetimes
• Safety–cannotdisassembleunderpressure
Bladder Accumulators
Liquids are practically incompressible and therefore cannot be
used directly for storing energy. Hydro-pneumatic accumulators
use the differing compressibility of liquid and gaseous media to
enable energy to be stored in liquids under pressure.
Parker's hydro-pneumatic bladder accumulators provide a
means of regulating the performance of a hydraulic system.
Their simple, compact, design ensures dependable
performance, maximum efficiency and long service life.
Technical Data
Standard volumes 1 – 50 litres
Operating pressure Up to 330 bar, with p
2
< 4 x p
1
where p
1
= minimum working pressure
and p
2
= maximum working pressure
Precharge pressure
– energy storage 90% of minimum working pressure
– pulsation dampening 60% of maximum working pressure
– shock suppression 60% of maximum pump pressure
Std. temperature range Shell and ports: -40°C to +80°C
Bladder and seals: -15°C to +80°C
For use at other temperatures, please
consult factory.
Fluid type Mineral oil (standard compounds)
PositioningFromvertical(uidportdownwards)tohorizontal.
A minimum clearance of 200mm must be left above the gas
valve for mounting the charging and gauging assembly – see
page 5.
Warning
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED
ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries, sales offices and authorized distributors provide
product or system options for further investigation by users having technical expertise. Before you select or use any product or system it is
important that you analyse all aspects of your application and review the information concerning the product or system in the current product
catalogue. Due to the variety of operating conditions and applications for these products or systems, the user, through his own analysis
and testing, is solely responsible for making the final selection of the products and systems and assuring that all performance and safety
requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to
change by Parker Hannifin Corporation and its subsidiaries at any time without notice.
Offer of Sale
Please contact you local Parker representative for a detailed offer of sale.
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Parker Hannifin
Cylinder Division
Europe
Catalogue HY07-1235/UK
Bladder Accumulators
Series BAE
Features and Dimensions
Models, Capacities and Dimensions
Design Features and Benefits
1 Approvals
All BAE bladder accumulators meet the requirements of
the European Pressure Directive (PED) 97/23/EC. Bladder
accumulators are marked with the CE logo and supplied with a
declaration of conformity. Hydraulic accumulators fulfil the safety
requirements for all member states of the European Union,
as well as Iceland, Liechtenstein, Norway and Switzerland.
Certification to PED + ASME and PED + SELO is also available.
2 Shell
Parker's bladder accumulator shells are made from seamless
chrome-molybdenum alloy steel with forged ends, for maximum
strength. The standard shell is suitable for use at operating
temperatures down to -40°C.
3 Bladder
The absence of dynamic sealing surfaces makes bladder
accumulators tolerant of contamination and particularly suitable
forlow-lubricityuids.Speciallyformulatedforlowpermeability,
Parker's bladders retain their high performance under a wide
range of operating conditions including closed loop operation.
Optional bladder compounds are available to suit all common
uidsandoperatingtemperatures.
4 Gas Valve
Accurate precharging of a bladder accumulator is the key to
long and reliable service life. All Parker's bladder accumulators
feature a robust gas valve, which is readily accessible for
maintenance purposes. A charging and gauging assembly,
described on page 5, allows precharging and monitoring to be
carried out quickly and easily.
5 Fluids and Fluid Ports
Parker's bladder accumulators are supplied as standard for use
with hydraulic mineral oil. They are also available for use with
othermedia,suchasbio-degradablehydraulicuids,non-
inammableliquids,emulsions,etc.Fluidportsaremadefrom
high-strength alloy steel, for maximum durability. BSPP ports
are fitted as standard. Other port styles are available, including
stainless steel for sub-sea use.
Notes
1
A minimum liquid volume (10% of V
o
) must be maintained inside the
accumulator. The maximum values listed only apply when installed
verticallywiththeuidportdownwards.
All dimensions are subject to manufacturing tolerances.
All dimensions are in millimetres unless otherwise stated.
A
J
H
F
K
B
D
C
d
Adapter shown
is an optional
accessory
SW
G
Model
Volume
Litres
Mass
Kg
Max flow
l/min
1
BAE01 1.0 5 240
BAE02 2.4 10 450
BAE04 3.7 13.5 450
BAE06 6.0 17. 8 450
BAE10 9.2 29.5 900
BAE20 17.8 46 900
BAE24 22.5 53 900
BAE32 34.6 73 900
BAE50 50 101 900
A
max
B
max
C
max
ØD Ød F ØG ØH SW
305 50 55 115 36 G
3
/
4
35 51 32
535 67 55 115 36 G1
1
/
4
53 75 50
417 67 55 170 36 G1
1
/
4
53 75 50
540 67 55 170 36 G1
1
/
4
53 75 50
559 93 51 223 36 G2 76 101 73
874 93 51 223 36 G2 76 101 73
1009 93 51 223 36 G2 76 101 73
1394 93 51 223 36 G2 76 101 73
1920 93 65 223 55 G2 76 101 73
J K
G
3
/
8
8
G
3
/
4
10
G
3
/
4
10
G
3
/
4
10
G1 13
G1 13
G1 13
G1 13
G1 13
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Parker Hannifin
Cylinder Division
Europe
Catalogue HY07-1235/UK
Bladder Accumulators
Series BAE
Hydraulic
Port
How to Order Bladder Accumulators
Capacity
Working
pressure
Bladder
Compound
Approval
Type
B
Type of
Construction
(bottom
repairable)
Design
Number
BAE
Product
Type
Code Design Number
1 Standard
* Design number
1
1
Parker allocated design number.
Code Port Style Page
R BSPP – standard 3, 5
Y ISO 6149-1 3, 5
M Metric 3, 5
T SAE Thread 3, 5
F SAE Flange 3, 5
S Special 3, 5
Code Capacity Page
01 1 litre 3
02 2.5 litres 3
04 4 litres 3
06 6 litres 3
10 10 litres 3
20 20 litres 3
24 24.5 litres 3
32 32 litres 3
50 50 litres 3
Code Working Pressure Page
3 330 bar nominal 2
S Special 2
Code Bladder Compound Page
1 Nitrile (NBR) – Standard 5
2 Low temperature nitrile (LT NBR) 5
3 Butyl (IIR) 5
5 Fluorocarbon elastomer (FPM) 5
7 Ethylene propylene diene (EPDM) 5
9 Epichlorohydrine (ECO) 5
Code Approval Type Page
C CE (European Union) 3
S Special 3
Gas Precharge Pressure
BAE bladder accumulators can be delivered precharged with
nitrogen. Where this option is chosen, the required precharge
pressure should be shown in the last field of the model code,
as above. Where this field is left blank, the accumulator will be
supplied with a transport filling of approximately 2.5 bar.
Gas
Precharge
Pressure
Code Precharge Pressure Page
eg: 010 10 bar 2, 7
020 20 bar
– in 10 bar steps
Key
Standard features
Optional features
Certification
BAE bladder accumulators are supplied with a Declaration of
Conformity in accordance with European Pressure Equipment
Directive 97/23/EC, and with an operating manual and a
drawing showing the main dimensions and materials.