REXROTH HAB Series User manual

1/18
Information on available spare parts:
www.boschrexroth.com/spc
Bladder-type accumulator
Type HAB
Component series 4X
Nominal capacity 1 to 50 liters
Maximum operating pressure 350 bar
RE 50170/01.09
Replaces: 05.2008
Table of contents
Contents Page
Features 1
Ordering code 2
Operating instructions and declarations of conformity 2
Function, section, symbol 3
Technical data 4
Application, operating principle 5
Calculation 5 to 10
Unit dimensions, standard types 11
Accessories 12 to 16
Intended use 17
Safety notes for hydraulic accumulators 17
Legal stipulations 17
Safety equipment 17
Features
– Hydraulic accumulator according to Pressure Equipment
Directive 97/23/EC
– Bladder material for different applications
Use:
– Energy storing in systems with intermittent operation
– Energy reserve for emergencies
– Compensation for leakage losses
– Impact and vibration damping
– Compensation of flow in the case of changes in pressure and
temperature
Note
Pressure Equipment Directive 97/23/EC of the European Parlia-
ment and of the Council of May 29, 1997 on the approximation
of the laws of the Member States has been in force since No-
vember 29, 1999. With effect from May 29, 2002 hydraulic ac-
cumulators may exclusively placed on the market in accordance
with this Directive.
Features 1
Ordering code 2
Operating instructions and declarations of conformity 2
Function, section, symbol 3
Technical data (for applications outside these parameters, please
consult us!) 4
Application, operating principle 5
Calculation 5
Calculation 6
Calculation 7
Calculation 8
Calculation 9
Calculation 10
Unit dimensions, standard types (dimensions in mm) 11
Accessories (dimensions in mm) 12
Accessories (dimensions in mm) 13
Accessories (dimensions in mm) 14
Accessories (dimensions in mm) 15
Accessories (dimensions in mm) 16
Intended use 17
Safety notes on hydraulic accumulators 17
Legal stipulations 17
Safety equipment 17

2/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Nominal capacity
1 liter = 1
2.5 liters = 2,5
4 liters = 4
6 liters = 6
10 liters = 10
20 liters = 20
35 liters = 35
50 liters = 50
Permissible max. operating pressure
350 bar (1 to 6 liters) = 350
330 bar (10 to 50 liters) = 330
Component series
Component series 40 to 49 = 4X
(unchanged installation and connection
dimensions)
Gas charge pressure
2 bar = 2
Port size for hydraulic fluid 1)
G 3/4 = G05
G 1 1/4 = G07
G 2 = G09
Type of mounting (oil connection form)
Thread with internally radial sealing face = G
For standard types, see page 11
Ordering code
1) Further variants on request
Further details
in clear text
e.g. special versions
Certification (acceptance)
CE = Acceptance accord-
ing to 97/23/EC
BA = Instructions for use
Surface of connection side 1)
1 = Steel
Surface inside vessel1)
1 = Steel
Vessel material1)
1 = Steel
Bladder material1)
N = NBR
E = ECO
Gas port form
2 = Gas valve for filling and test device
(see page 14)
HAB 4X 2 G 2 1 1 1 *
Order example:
HAB10-330-4X/2G09G-2N111-CE
Operating instructions and declarations of conformity
Language Operating instructions
Material number
German R901200925
English R901200926
French R901200927
Spanish R901200928
Italian R901200929
Chinese R901200930
Russian R901200931
Norwegian R901200932
Nominal
capacity
Declarations of conformity
Bladder material NBR
Material number
Bladder material ECO
Material number
1 l – –
2,5 l
R901200940 R901200942
4 l
6 l
10 l
R901200941 R901200943
20 l
35 l
50 l
Operating instructions
available for HAB1 bis HAB50
Declarations of conformity
Sprache: german, english, french

1
2
3
4
7
8
5
4.1
4.2
4.3
4
6
Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 3/18
Function, section, symbol
General
Hydraulic accumulators are hydrostatic units, which can store a
certain amount of energy and make it available to the hydraulic
system when required.
Fluids are hardly compressible, whereas gases feature high
compressibility. The operating principle of all gas-loaded hy-
draulic accumulators is based on this difference.
Depending on the design of the separating element, we dis-
1 Vessel
2Blader
3Oil valve
4Gas valve
5
Gas valve carrier
6Nut
7Type cap
8Cover cap
When a certain amount of pressurized gas is pressurized to
a higher fluid pressure, the gas volume decreases as the fluid
pressure rises.
When the fluid pressure falls, the fluid is pressed back into the
hydraulic system through expansion of the gas until the pres-
sure is again balanced.
Bladder-type accumulators
Bladder-type accumulators consist of a seamless cylindrical
pressure vessel (1) made of high-tensile steel.
The accumulator is subdivided into a gas and a fluid side by an
elastic bladder (2) mounted in the interior of the vessel.
The bladder is charged with nitrogen to the specified gas
charge pressure p0by means of gas valve (4).
When the fluid is pressed into the accumulator, the gas in the
bladder is compressed and hence the pressure increased. The
gas volume reduces and on the fluid side, the fluid can flow
tinguish between bladder-type and diaphragm accumulators.
Hydraulic accumulators basically consist of a fluid and a gas
section with a gas-tight separating element. The fluid section is
connected to the hydraulic circuit.
into the accumulator. As soon as the pressure on the fluid side
falls below the gas pressure, the accumulator is emptied.
Oil valve (3) is provided in the oil port of the bladder-type accu-
mulator and closes when the pressure on the gas side is higher
than on the fluid side. This prevents draining of the bladder into
the oil channel and thus the bladder from being destroyed.
When the minimum operating pressure is reached, a small oil
volume is to be maintained between the bladder and the fluid
volume (approx. 10 % of the nominal capacity of the hydraulic
accumulator), in order that the bladder does not hit the valve
during every expansion process.
Gas valve (4) consists of sealing cap (4.1), gas valve insert
(4.2) and gas charging valve body (4.3). These parts can be re-
placed separately.
Type cap (7) shows the technical data and features of the hy-
draulic accumulator.
Symbol

4/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Technical data (for applications outside these parameters, please consult us!)
General
Weight kg See table on page 11
Design Bladder-type accumulator
Installation position Preferably with fluid connection pointing downwards or horizontal
Type of mounting With clamps and console
Ambient temperature range °C –15 to +65 1)
Pipe connection Female thread
Hydraulic
Nominal capacity Vnom l 1 2.5 4 6 10 20 35 50
Effective gas volume Veff l 1.0 2.4 3.7 5.9 9.2 18.1 33.4 48.7
Permissible max. flow qmax l/min 240 600 600 600 900 900 900 900
Permissible max.
operating pressure pmax bar 350 350 350 350 330 330 330 330
Permissible max. pressure
fluctuation width ∆pdyn bar 200 200 200 200 200 200 200 200
Operating pressures and useful volume See Calculation on pages 5 to 10
Hydraulic fluid Hydraulic oil to DIN 51524; other fluids on request!
Hydraulic fluid temperature range
Others on request
°C –15 to +80 (NBR)
–35 to +80 (ECO)
Pneumatic
Charge gas nitrogen, purity degree 4.0, N2 = 99,99 Vol.-%
Gas charge pressure p0bar 2
NBR Acrylonitrile butadiene rubber (Perbunan)
ECO Epichlorohydrin rubber
Hydraulic fluids Temperature range Material
Mineral oils –15 to +80 °C
–35 to +80 °C
NBR
ECO
HFC –10 to +60 °C NBR
Usable hydraulic fluids
Temperature range
In the case of other hydraulic fluids or temperatures, please
consult us.

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 5/18
V1
p1
V0
p0
V2
p2
Application, operating principle
Applications
Hydro-pneumatic accumulators can be used in a wide variety
of applications:
– Storage of energy for saving pump drive power in systems
with intermittent operation.
– Energy reserve for emergencies, e.g. in the event of a failure
of the hydraulic pump.
– Compensation of leakage losses.
– Damping of impacts and vibration in the case of periodic
vibration.
– Compensation of volume in the case of changes in pressure
and temperature.
Operating principle
Fluids are almost incompressible and can therefore not store
pressure energy. Hydro-pneumatic Rexroth accumulators utilize
the compressibility of a gas for storing a fluid. Only nitrogen of
purity degree 4.0 may be used!
N2 = 99.99 percent by volume
charging
Pressures
For the calculation of an accumulator, the following pressures
are of decisive significance:
p0= gas charge pressure at room temperature
and drained fluid chamber
p0 (t ) = gas charge pressure at operating temperature
p0 (tmax) = gas charge pressure at max. operating temperature
p1= minimum operating pressure
p2= maximum operating pressure
pm= medium operating pressure
To achieve the best possible utilization of the accumulator ca-
pacity and a long service life, it is recommended that the fol-
lowing values be adhered to:
p0(tmax) 0.9 p1(1)
p2 4 • p0
(2)
Calculation
The highest hydraulic pressure should not exceed the quadru-
ple of the precharge pressure; otherwise, the elasticity of the
bladder is overstressed and excessive variations in the com-
pression result in strong heating up of the gas:
The smaller the difference between p1and p2the longer is the
service life of the accumulator bladder. However, this also re-
duces the degree of utilization of the corresponding maximum
accumulator capacity.
charging
discharging discharging

6/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
0,1
0,6
0,7
0,8
0,9
1,0
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0
p
2
= 300 bar
p
2
= 200 bar
V1
P1
po
P2
s1
s2
V2
0,1
0,6
0,7
0,8
0,9
1,0
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0
P1/ P2
Ki
Application of the calculation diagrams
(see pages 7 to 10)
Calculation
Oil volume
Pressures p0… p2determine gas volumes V0… V2.
Here, V0 is also the nominal capacity of the accumulator.
The available oil volume Vcorresponds to the difference be-
tween gas volumes V1and V2:
The gas volume, which is variable within a pressure differential,
is determined by the following equations:
a) In the case of isothermal changes of state of gases, that
is, when the gas buffer changes so slowly that enough
time is available for a complete heat exchange between the
nitrogen and its surroundings and the temperature therefore
remains constant, the following is valid:
b) In the case of an adiabatic change of state, that is, with a
rapid change of the gas buffer, in which the temperature of
the nitrogen changes as well, the following is valid:
χ = ratio of the specific heat of gases (adiabatic exponent),
for nitrogen = 1.4
In practice, changes in state rather follow adiabatic laws.
Charging is often isothermal, discharging adiabatic.
Taking account of equations (1) and (2), Vis 50 % to 70 %
of the nominal accumulator capacity. The following can be ap-
plied as a rule of thumb:
V V1– V2
(3)
p0 • V χ0 = p1 • V χ1 = p2 • V χ2(4.2)
V0= 1.5 … 3 x V(5)
p0 • V0 = p1 • V1 = p2 • V2(4.1)
Calculation diagram
To allow a determination on the basis of a graphic rep-
resentation, the formulas (4.1) and (4.2) were translated
into diagrams on pages 7 to 10. Depending on the task at
hand, the available oil volume, the accumulator size or the
pressures can be established.
Available oil
volume
Gas charge pressure
Working pressure range
Correction factors Kiand Ka
Equations (4.1) and (4.2) are only valid for ideal gases. In
the characteristics of real gases, significant deviations can
be observed at operating pressures above 200 bar, which
must be taken into account by applying correction factors.
These are shown on the following diagrams. The correc-
tion factors which are to be multiplied by the ideal with-
drawal volume Vare within the range of 0.6 … 1.
Isothermal Vreal = Videal • KiVreal = Videal • Ka
Adiabatic
Vin l →
pin bar →
p1/ p2→
Ki→
Ka→
p1/ p2→

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 7/18
1 2 3 4 5 2010 30 40 50 100 200 400
300
1
2
3
4
5
6
7
8
9
10
12
14
16
18
20
25
30
40
50
60
70
80
90
0,1
0,2 0,4
0,3
0,5
0,6
0,7
0,8
1
4
0,5
1,0
1,5
2,0
2,5
10
1,0
7,0 2,0 6,0 5,0 3,0
4,0
20
35
50
14,0
12,0 10,0
8,0
6,0
4,0
2,0
5
10
15
20
25
15
20
35
25
20
5
10
2,5
1,0
2,0
4,0 5,0 3,0
2,0
1,5 1,0
0,5
6
Calculation
Isothermal changes of state
p0= 1 to 90 bar
Accumulator size in l →p1, p2in bar →
Vin l →
p
0
in bar →

8/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
150
200 300 400
100
200
300
250
0,1
0,2 0,4
0,3
0,5
0,6
0,7
0,8
1
4
0,5
1,0
1,5
2,0
2,5
10
1,0
7,0
2,0
6,0
5,0 3,0
4,0
20
35
50
14,0
12,0
10,0
8,0
6,0
4,0
2,0
5
10
15
20
25
15
20
35
25
20
5
10
2,5
1,0
2,0
4,0
5,0
3,0
2,0
1,5 1,0
0,5
6
100
Vin l →
Calculation
Isothermal changes of state
p0= 100 to 300 bar
Accumulator size in l →p1, p2in bar →
p
0
in bar →

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 9/18
1
2 3 4 5 2010 30 40 50 100 200 400
300
1
2
3
4
5
6
7
8
9
10
12
14
16
18
20
25
30
40
50
60
70
80
90
0,1
0,2 0,4
0,3
0,5
0,6
0,7
0,8
1
4
0,5
1,0
1,5
2,0
2,5
10
1,0
7,0
2,0 6,0 5,0 3,0
4,0
2035
50
14,0
12,0 10,0
8,0
6,0
4,0
2,0
5
10
15
20
25
15
20
35
25
20
5
10
2,5
1,0
2,0
4,0 5,0 3,0
2,0
1,5 1,0
0,5
6
Calculation
Adiabatic changes of state
p0= 1 to 90 bar
Accumulator size in l →p1, p2in bar →
Vin l →
p0in bar →

10/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
1
0,1
0,2 0,4
0,3
0,5
0,6
0,7
0,8
4
0,5
1,0
1,5
2,0
2,5
10
1,0
7,0
2,0
6,0
5,0 3,0
4,0
20
35
50
14,0
12,0
10,0
8,0
6,0
4,0
2,0
5
10
15
20
25
15
20
35
25
20
5
10
2,5
1,0
2,0
4,0
5,0
3,0
2,0
1,5 1,0
0,5
6
100 200 300 400
150
300
250
100
200
Calculation
Adiabatic changes of state
p0= 100 to 300 bar
Accumulator size in l →p1, p2in bar →
p
0
in bar →
Vin l →

d max
SW
e
f
ab
h max
Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 11/18
Unit dimensions, standard types (dimensions in mm)
Nominal
capacity
in liters
Ordering code / type Material no. h
max
Ød
max a b Øe Øf A/F Weight kg
1HAB1-350-4X/2G05G-2N111-BA R901195131 333,5 115,5 56 70 G3/4" 36 32 5
HAB1-350-4X/2G05G-2E111-BA R901195132
2,5 HAB2,5-350-4X/2G07G-2N111-CE R901195133 554 115,5 69 70 G1 1/4" 53 50 10
HAB2,5-350-4X/2G07G-2E111-CE R901195134
4HAB4-350-4X/2G07G-2N111-CE R901195135 438,5 170 67 70 G1 1/4" 53 50 16
HAB4-350-4X/2G07G-2E111-CE R901195136
6HAB6-350-4X/2G07G-2N111-CE R901195137 564,5 170 67 70 G1 1/4" 53 50 20
HAB6-350-4X/2G07G-2E111-CE R901195138
10 HAB10-330-4X/2G09G-2N111-CE R901195139 590,5 225,5 104 70 G2" 76 70 32
HAB10-330-4X/2G09G-2E111-CE R901195140
20 HAB20-330-4X/2G09G-2N111-CE R901195141 900,5 225,5 104 70 G2" 76 70 53
HAB20-330-4X/2G09G-2E111-CE R901195142
35 HAB35-330-4X/2G09G-2N111-CE R901195143 1424 225,5 104 70 G2" 76 70 85
HAB35-330-4X/2G09G-2E111-CE R901195144
50 HAB50-330-4X/2G09G-2N111-CE R901195145 1940 225,5 104 70 G2" 76 70 123
HAB50-330-4X/2G09G-2E111-CE R901195146

12/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Accessories (dimensions in mm)
1
3
2
HAB mounting elements
Clamp type Material no.
Accumulator size
1 4 20
2.5 6 10 35 50
Clamp 110-120 1531316021 1
Clamp 160-170 1531316022 2
Clamp 218-228 1531316026 1 2
Clamp 224-230 1531316005 2
Console 1531334008 111
Rubber back-up ring
1530221042 111
1Clamp
2Console
3Rubber back-up ring
14
200
260
35
75
100
Console and rubber back-up ring
170
123
225
3000 Nm
Console
Material no. 1531334008 Rubber back-up ring
Material no. 1530221042

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 13/18
Fry
Frx
Fa
D
A
H
C
M
S
B
E
L
9
Accessories (dimensions in mm)
Mounting clamps
Type F1 Type F2
B
L
E
9
A
K
S
H
D
C
M
Clamp type
Dimensions
A B C D E H K L M S Material no.
Clamp 110-120 F1 135 96 150 110-120 50 64-69 – 10 M8 3 1531316021
Clamp 160-170 F1 237 147 200 160-170 50 90-95 – 35 M8 4 1531316022
Clamp 218-228 F1 237 147 258 218-228 50 120-125 – 35 M8 4 1531316026
Clamp 224-230 F2 254 212 244 224-230 30 120-123 295 13 M12 3 1531316005

14/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
1 valve body with check valve,
discharge valve, pressure gauge connection
and gas hose connection.
Accessories (dimensions in mm)
M14x1,5
SAE 7/8”-14 UNF
1
psi
bar
Rexroth
1537231001
l = 2,5 m
W 24,32 x 1/14”
50
200
250
3500
3000
2000
1000
0
100150
D2
500
1500
2500
1Spare part, Material no. 1537410065
2Adapter, see page 15
Charging and test device
Test case Material no.
Test case, complete
(bladder-type accumulator HAB) 0538103011
Case (separately) R901070141
Charging and test valve 0538103005
Pressure gauge 0 to 250 bar 1537231001
Hose l = 2.5 m
with adapter connection form 1530712005
Supplementary parts to
be ordered separately Material no.
Pressure gauge 0 to 25 bar R900033955
Pressure gauge 0 to 60 bar 1537231002
Pressure gauge 0 to 400 bar 1537231005
Adapter connection
Form 
1533391010
Form 1533391011
Form 1533391012
Form 1533391013
Form 1533391014
Form 1533391015
Hose l = 5 m
with adapter connection form 1530712006

KOR

JAP

GUS
Dimensions or charging and test valve

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 15/18
37
W 21,8 x 1/14”
W 24,32 x 1/14”
1533391010
68
W 22 x 1/14”
W 24,51 x 1/14”
W 24,32 x 1/14”
1533391014
52
W 23 x 1/14”
W 24,32 x 1/14”
1533391013
81
G 5/8-ISO 228
G 3/4-ISO 228
W 24,32 x 1/14”
1533391011 1533391012
45
W 24,32 x 1/14”
1533391015
81
W 24,32 x 1/14”
SW32
SW32 SW32
SW36
SW32
SW32
Adapter for nitrogen bottle to cap nut
Country 1533391011 1533391010 1533391012 1533391014 1533391013 1533391015
Brazil x
Bulgaria x
Canada x
France x
Great Britain x
Greece x
India x
Japan x
Korea North x
Korea South x
Malaysia x
Romania x
Russia x
Saudi Arabia x
Singapore x
Spain x
Turkey x
USA x
Other countries on request
Accessories (dimensions in mm)

16/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Adapter from imperial to metric thread
HAB..–1X ti HAB..–4X
The associated seal rings (R2) are included in the scope of supply.
The seal rings for axial sealing (reducing piece for pipe connec-
tion) are included in the scope of supply.
Nominal
capacity
in liters
to ISO 228 to ISO 228 Dimensions in mm
D2 MT
in Nm
D1 MT
in Nm
H L2
D3 D4
A/F Material no.
1G3/4 180 + 18
M30x1.5 180 [phone] 1533345047
2.5 to 6 G1 1/4 450 +45
M40x1.5 400 [phone] 1533345048
10 to 50 G2 500 +50
M50x1.5 450 [phone] 1533345049
L2
D2
D4
H
D1
D3
R2
SW
Accessories (dimensions in mm)
Connection adapter for safety blocks NG20
Connection A (accumulator)
Safety block to ISO 228 Dimensions in mm
D1 MT
in Nm
D2 MT
in Nm
L L1 L2
D3 D4
A/F Material no.
M33x2 310 +30
G3/4 180 + 18 64 18 28 53 12 46 1533359038
G1 1/4 450 [phone] 1533359039
G2 500 [phone] 1533359040
D2
D4
SW
R2
L2
L
L1
D3
R1
D1
Nominal
capacity in
liters
to ISO 228 to ISO 228 Dimensions in mm
D2 MT
in Nm
D1 MT
in Nm
H L2
D3 D4
A/F Material no.
1G3/4 180 + 18 G3/8 70 [phone] 1533345039
2.5 to 6 G1 1/4 450 +45 G1/2 115 [phone] 1533345043
G1 1/4 450 +45 G3/4 180 + 18 837 60 24 55 1533345040
10 to 50
G2 500 +50 G1/2 115 [phone] 1533345044
G2 500 +50 G3/4 180 [phone] 1533345041
G2 500 +50 G1 310 [phone] 1533345045
G2 500 +50 G1 1/2 450 [phone] 1533345042
Reducing piece for pipe connection
The associated seal rings (R2) are included in the scope of supply.
L2
D2
D4
H
D1
D3
R2
SW

Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 17/18
Warning
Never carry out any welding, soldering or mechanical work
on the accumulator vessel!
– Risk of explosion during welding and soldering!
– Risk of bursting and loss of the operating per-
mission in the case of mechanical working!
Never charge hydraulic accumulators with oxy-
gen or air. Risk of explosion!
Before carrying out any work on hydraulic systems, depressur-
ize the system and secure it against restarting!
Improper mounting can lead to severe accidents!
Commissioning must exclusively by carried out by qualified per-
sonnel.
Hydraulic accumulators are pressure vessels and are subject to
the national regulations and ordinances valid at the place of in-
stallation.
In Germany, the Health and Safety at Work Regulations (BetrSi-
chV) must be complied with.
Special rules must be observed in the fields of shipbuilding, air-
craft construction, mining, etc.
Legal stipulations
Safety notes on hydraulic accumulators
Before commissioning and during operation of hydraulic accu-
mulators, observe the regulations valid at the place of installa-
tion.
The operator is solely responsible for observing applicable reg-
ulations.
General notes on hydraulic accumulators in hydraulic systems
can be found in EN 982.
Documents included in the scope of supply must be proper-
ly kept; they are required by the surveyor for recurring inspec-
tions.
Rexroth bladder type accumulators HAB..-4X are intended for
the setup of hydraulic drive systems in the field of stationary
machine-building and plant construction.
In mobile applications or applications, in which acceleration
forces act on the bladder-type accumulator during operation
according to the intended purpose, the use is subject to ap-
proval by the responsible Bosch Rexroth product manager.
Please contact the technical sales organization.
Intended use
Rexroth HAB..-4X bladder-type accumulators are not intended
for private use.
They must not be used in potentially explosive atmospheres in
accordance with Directive 94/9/EC (ATEX).
Note!
All vessel categories must be protected by means of a pres-
sure relief valve in accordance with Directive 97/23/EC.

In Germany, the following safety equipment is required:
1Features against excessive pressure (type-tested)
2Unloading feature
3Pressure measuring instrument
4Test pressure gauge connection
5Shut-off feature
Option:
6Electromagnetically operated unloading device
7Safety device against excessive temperatures
These safety devices are combined in a compact Bosch
Rexroth safety and shut-off block (see RE 50128).
M1
M2A
x
PT
21
3 6
7
4
5
Safety equipment

Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone [phone] / 18-0
Fax [phone] / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No state-
ments concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
18/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Notes

Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone [phone] / 18-0
Fax [phone] / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No state-
ments concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
Hydraulics Bosch Rexroth AG
RE 50170/01.09 HAB 19/18
Notes

Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone [phone] / 18-0
Fax [phone] / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No state-
ments concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
20/18 Bosch Rexroth AG Hydraulics HAB RE 50170/01.09
Notes