a3h series high pressure variable displacement … a3h series high pressure variable displacement...
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115A3H Series High Pressure Variable Displacement Piston Pumps
Constant Power (Torque) Control TypePressure Compensator Type Load Sensing Type
1 0 0
M
O
Graphic Displacementcm3/revPump Type
Single Pump★
A3H
Ser
ies H
igh
Pres
sure
V
aria
ble
Dis
plac
emen
t Pis
ton
Pum
ps
Graphic Symbol
MaximumOperatingPressure
MPa
Page
35 118
A3H16
A3H37
A3H56
A3H71
A3H100
A3H145
A3H180
1 2 5 0 2 5 100 200 300
★ Four control types are available such as pressure compensator type. Refer to page 119.
■ “A3H” Series High Pressure Variable High Pressure Displacement Piston Pumps
A3H Series High PressureVariable Displacement Piston Pumps
116 A3H Series High Pressure Variable Displacement Piston Pumps
Hydraulic Fluids
Hydraulic Fluids Control of ContaminationUse petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46.The recommended viscosity range is from 20 to 400 mm2/s and temperature range is from 0 to 60 °C, both of which have to be satisfied for the use of the above hydraulic oils.
Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please main-tain the degree of contamination within NAS Grade 10.The suction port must be equipped with at least a 100 μm (150 mesh) reservoir type filter and the return line must have a line filter of under 10 μm.
Instructions
Mounting Drain PipingWhen installing the pump the filling port should be positioned upwards.
Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm TIR and maximum permissible misangular is less than 0.2°.
Suction PressurePermissible suction pressure at suction port of the pump is between -16.7 and +50 kPa. In case of the speed is over 1800 r/min, adjust the pressure 0 to +50 kPa.For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used.Make sure that the height of the pump suction port is whithin one metre from the oil level in the reservoir.
Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.
Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.
Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa and surge pressure of less than 0.5 MPa.Length of piping should be less than 1 m, and the pipe end should be submerged in oil.
[Recommended Drain Piping Size]
Model Volume cm3
[Volume of Pre-fill Oil Required]
Safety ValveWhen delivery line is blocked suddenly, surge pressure is occurred so a safety valve should be set in the circuit to eliminate any damage on equipment and piping.
Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration.
StartingBefore first staring, fill pump case with clean operating oil via the fill port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load.
A3H16 400A3H37 700A3H56 900A3H71 1300
A3H100 1700A3H145 2400A3H180 3200
Model Fitting Size
1/2
Inside Dia. of Pipe
A3H16A3H37
12 mm or more
3/4A3H56
|A3H180
19 mm or more
117
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A3H Series High Pressure Variable Displacement Piston Pumps
Setting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.
Turning the adjustment screw clockwise, increases pressure.
Model Numbers Adjustment Volume MPa
5.5
6.3
5.7
A3H16/A3H37/A3H56-01
A3H71/A3H100/A3H145-01
A3H180-01
Adjustment of Discharge Pressure
Volume adjusted by each full turn of the pressureadjustment screw
Turning the flow adjustment screw clockwise, decreases delivery.
Model Numbers
1.4
3.3
4.2
4.9
6.2
9.4
10.3
A3H16
A3H37
A3H56
A3H71
A3H100
A3H145
A3H180
Adjustable volumrewith each full turn of the adjustment
screw 3 cm /rev
Minimum adjustment flow3 cm /rev
8
16
35
45
63
95
125
Adjustment of Delivery
The minimum adjustable flow and adjustable volume ofeach full turn of the delivery adjustment screw
Flow Adjustment Screw Protrusion Length "L" vs. Geometric Displacement (reference)
LCover
Flow Adj. Screw
Lock Nut
Retainer
50
20
40
60
80
100
120
140
160
180
200
10 15 20
A3H16
A3H37
A3H56
A3H71
A3H100
A3H145
A3H180
Geo
met
ric D
ispl
acem
ent
cm
3 /rev
Adjustment Screw Protrusion Length "L" mm
118 A3H Series High Pressure Variable Displacement Piston Pumps
"A3H37" type performance charateristics
"14"Load Sensing Type
"55"Simple Two-Pressure
Two-Flow Control Type
erusserP erusserP
Out
put F
low
Out
put F
low
"09"Constant Power Control Type
erusserP
Out
put F
low
"01"Pressure Compensator Type
erusserP
Out
put F
low
DR
P
S
0M
P
PP
DRS
0M
0M
P
S DR
LPP
M0
60
40
20
0
N=1800 r/min
0
40
20
Pressure MPa 0
100
80
60
5 10 15 20 25 30 35
Inpu
t Pow
er
kW
Out
put F
low
L/
min
Effic
ienc
y %
Volumetric Efficiency
Overall Efficiency
Output Flow
Input Power
OUT
IN
Flow Adj. Screw
Spool Pressure Compensator ValvePressure Adj. Screw
Control PistonDrain Port
Pivot
Shaft
Cradle
Slipper Retainer
Spring Spring Piston Ass'y
Cylinder Block
Port Plate
A3H Series High Pressure Variable Displacement Piston Pumps
■ Control Type ■ Features● High performance at maximum pressure
35 MPaVolumetric efficiency is over 95% and overall efficiency is more than 90% at 1800 r/min.
● Compact sizeA3H series are compact in size because output / mass ratio is large.
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A3H Series High Pressure Variable Displacement Piston Pumps
■ Control Type
Control Type Graphic Symbols Performance Characteristics Explanation Page
"01"Pressure Compensator Type
When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreases automatically while maintaining the set pressure as it is.
120
"09"Constant Power (Torque) Control Type
• This type of control can control the pump input power according to the motor output.
• When the system pressure increases, the pump swash plate tilt angle (output flow) decreases, in correspondence to predetermined shaft input values.
• This type of control can enable one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow). Therefore, the motor capacity can be reduced.
139
"14"Load Sensing Type
• This is an energy-saving type control which maintains the pump flow and load pressure at the absolute minimum necessary level to operate the actuator.
• This type of control automatically regulates the output flow so that the inlet-outlet differential pressure of the flow control valve at the output side is constant. To do so, the load pressure must be introduced to the load sensing port "L" of the pump through the external piping.
• This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port "PP".
145
"55"Simple Two-Pressure Two-Flow Control Type
• This type of control enables one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow-rate). Therefore, the motor capacity can be reduced.
• When the system pressure increases near the preset “PL” pressure due to the load increase, the pump flow automatically decreases to “QL.”
• This type of control is suitable for an application like the press, where switching from rapid advance to feed is required just when the press (pressurizing) starts.
• The PH pressure can be remote-controlled with a separately located relief valve. With this type of control, it is easy to change the applied pressure setting when materials or shapes of the press are changed.
151
★A flow control valve is not included with the pump. Install the valve separately.
■ Availability of Control TypeMark "○" in the table below refers to standard model.
Model NumbersGeometric
Displacement cm3/rev
"01"Pressure Compensator
Type
"09"Constant Power
(Torque) Control Type
"14"Load Sensing Type
"55"Simple Two-Pressure
Two-Flow Control Type
A3H 16 16.3 ○ ○ ○
A3H 37 37.1 ○ ○ ○ ○
A3H 56 56.3 ○ ○ ○ ○
A3H 71 70.7 ○ ○ ○ ○
A3H100 100.5 ○ ○ ○ ○
A3H145 145.2 ○ ○ ○ ○
A3H180 180.7 ○ ○ ○ ○
QH
QL
Pressure
Out
put F
low
QH
QL
PL PH
Pressure
Out
put F
low
Pressure
Out
put F
low
M
O
Pressure
Out
put F
low
120 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
Graphic Symbol
★1. Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.★2. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.★3. The table above shows specifications for using petroleum based oils.
Pumps (customized design) for special fluids are also available. Their operating pressure and maximum shaft speed however differ from the values in the table above depending on the fluid type.Range of operating temperature and viscosities may differ from those of petroleum based oils due to their characteristics.
★1. As the specific gravities of water-glycol fluids and phosphate ester type fluids are higher than one, an overhead reservoir is required when pumps are operated at 1500 r/min or more.
■ Specifications
Model NumbersGeometric
Displacementcm3/rev
Minimum Adj. Flow cm3/rev
Operating PressureMPa
Shaft Speed Ranger/min
Approx. Masskg
Rated★1 Intermittent Max.★2 Min. Flange Mtg. Foot Mtg.
A3H 16-*R01KK-10 16.3 8.0
28 35
3600 600 14.5 23.4
A3H 37-*R01KK-10 37.1 16.0 2700 600 19.5 27.0
A3H 56-*R01KK-10 56.3 35.0 2500 600 25.7 33.2
A3H 71-*R01KK-10 70.7 45.0 2300 600 35.0 42.5
A3H100-*R01KK-10 100.5 63.0 2100 600 44.9 72.9
A3H145-*R01KK-10 145.2 95.0 1800 600 60.0 88.0
A3H180-*R01KK-10 180.7 125.0 1800 600 70.4 98.4
● Specifications and Design numbers for Special Fluids
Type of FluidsOperating Pressure
MPa
Allowable MaximumShaft Speed
r/min
TemperatureRange
°C
ViscosityRange
mm2/s
Design Numbers forSpecial Fluid
Rated Intermittent Rated Max.
Water-Glycols 21 21 1200 (1800)★1 0 - 5020 - 200
1030
Phosphate Ester Type 21 21 1200 (1800)★1 0 - 60 1006
Polyol Ester Type 21 25 1200 1800 0 - 60 20 - 200 10450
A3H Series High Pressure Variable Displacement Piston Pumps, Pressure Compensator Type
M
O
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A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
■ Model Number Designation
A3H16 -F R 01 K K -10
Series Number Mounting Direction of Rotation Control Type Pres. Adj. Range
MPa Shaft Extension Design Number
A3H16(16.3 cm3/rev)
F: Flange Mtg.
L: Foot Mtg.
(Viewed from)Shaft End
R: Clockwise (Normal)
01: Pressure Compensator Type
K: 5 - 35 K: Keyed Shaft
10
A3H37(37.1 cm3/rev) 10
A3H56(56.3 cm3/rev) 10
A3H71(70.7 cm3/rev) 10
A3H100(100.5 cm3/rev) 10
A3H145(145.2 cm3/rev) 10
A3H180(180.7 cm3/rev) 10
■ Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.
Pump Model Numbers Name of Port Threaded Connection Socket Welding Butt Welding
A3H16-*R01Suction F5-08-A-10 F5-08-B-10 F5-08-C-10
Discharge F6-06-A-M-10★1 F6-06-B-M-10 ――
A3H37-*R01Suction F5-10-A-10 F5-10-B-10 F5-10-C-10
Discharge F6-08-A-M-10★1 F6-08-B-M-10 ――
A3H56-*R01Suction F5-12-A-10 F5-12-B-10 F5-12-C-10
Discharge F6-08-A-M-10★1 F6-08-B-M-10 ――
A3H71-*R01Suction F5-16-A-10 F5-16-B-10 F5-016-C-10
Discharge F6-10-A-M-10★1 F6-10-B-M-10 ――
A3H100-*R01A3H145-*R01
Suction F5-20-A-10 F5-20-B-10 F5-20-C-10
Discharge F6-10-A-M-10★1 F6-10-B-M-10 ――
A3H180-*R01Suction F5-24-A-10 F5-24-B-10 ――
Discharge F6-12-A-M-10★1 F6-12-B-M-10 ――
★1. These flanges are with tapered threaded port, maximum pressure is restricted at 31 MPa.● Details of the pipe flange kits are shown on page 262 to 264.
122 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
■ The Circuit and Conditions
● Circuit
■ Result of Measurement
● ConditionsDrive Speed : 1500 r/minHydraulic Fluid : ISO VG32 OilOil Temperature : 40°C [Viscosity 32 mm2/s]
MO
SOL High Pressure Rubber Hose
t2t1
OFF
Time
SOLOFF ON
2 MPa 2 MPa
PS
28 MPa
Pressure
● Size of High Pressure Rubber House
Model High Pressure Rubber Housea
A3H16 3/4B × 1500 mm
A3H37/56/71 3/4B × 2000 mm
A3H100/145 1-1/4B × 2000 mm
A3H180 1-1/4B × 2500 mm
ModelResponse Time ms PS
Overshoot Pres.MPat1 t2
A3H 16 30 140 2.5
A3H 37 40 80 3.5
A3H 56 50 90 7.5
A3H 71 50 140 10.0
A3H100 70 170 11.0
A3H145 70 180 12.5
A3H180 70 220 12.0
Response Characteristics Change in Accordance with Circuits and Operating Conditions.
123
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A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
30
20
10
0 0
20
10
N=1500 r/min
0
100
80
60
5 10 15 20 25 30 35
30
20
10
0
N=1800 r/min
0
20
10
0
100
80
60
5 10 15 20 25 30 35 0
100
80
60 60
40
20
05 10 15 20 25 30 35
N=3600 r/min
0
40
20
20
15
10
5
010 15 20 25 30
N=1500 r/min N=1800 r/min20
15
10
5
010 15 20 25 30
40
35
30
25
20
15
10
5
020 30 40 50 60
N=3600 r/min
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/min Output Flow L/min
35 MPa30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
VolumetricEfficiency
VolumetricEfficiency
VolumetricEfficiency
Overall Efficiency Overall Efficiency Overall Efficiency
Output Flow Output Flow Output Flow
Input PowerInput Power
Input Power
Pressure MPa Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Effic
ienc
y %
Full Cut-off
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull FlowFull Flow
Full Cut-offFull Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H16 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
124 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
0
100
80
60 60
40
20
05 10 15 20 25 30 35
N=1500 r/min
0
40
20
60
40
20
0
N=1800 r/min
0
40
20
0
100
80
60
5 10 15 20 25 30 35
120
80
100
40
60
20
0 0
80
40
N=2700 r/min
0
100
80
60
5 10 15 20 25 30 35
35
30
25
20
15
10
5
025 30 35 40 45 50 55 6020
60
50
40
30
20
10
030 40 50 70 806020
6065
50
40
30
20
10
030 40 50 60 70 80 90 100
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
N=1500 r/min
35 MPa30 MPa28 MPa25 MPa20 MPa
15 MPa
10 MPa
5 MPa
N=1800 r/min 35 MPa
20 MPa
15 MPa
10 MPa
5 MPa
N=2700 r/min
30 MPa28 MPa25 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
VolumetricEfficiency
VolumetricEfficiency
VolumetricEfficiency
Overall Efficiency Overall Efficiency Overall Efficiency
Output Flow
Output FlowOutput Flow
Input PowerInput Power
Input Power
Pressure MPa Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/minOutput Flow L/min
10
8
6
4
2
0 5 10 15 20 25 30 35
2700 r/min
1800 r/min1500 r/min
10
8
6
4
2
0 5 10 15 20 25 30 35
2700 r/min
2700 r/min
1800 r/min1500 r/min
1800 r/min1500 r/min
N=1500 r/min80
70
60
500 5 10 15 20 25 30 35
N=1800 r/min80
70
60
500 5 10 15 20 25 30 35
N=2500 r/min80
70
60
500 5 10 15 20 25 30 35
Full Cut-off
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull FlowFull Flow
Full Cut-offFull Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H37 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
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A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
60
80
100
120
40
200
N=1500 r/min
0
100
80
60
5 10 15 20 25 30 350
80
40
0
100
80
60
60
80
100
120
40
200
5 10 15 20 25 30 350
80
40
N=1800 r/min
0
100
80
60
60
80
100
120
140
40
200
5 10 15 20 25 30 350
80
40
120
N=2500 r/min
60
70
50
40
30
20
10
040 50 60 70 80 90 100 110
60
70
50
40
30
20
10
040 50 60 70 80 90 100 110
0
10
20
30
40
50
60
70
80
90
70 80 90 100 110 120 130 140
N=1500 r/min
35 MPa30 MPa28 MPa25 MPa20 MPa15 MPa10 MPa5 MPa
N=1800 r/min
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa
25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
N=2500 r/min
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
Overall Efficiency Overall Efficiency Overall Efficiency
Volumetric Efficiency Volumetric EfficiencyVolumetric Efficiency
Output FlowOutput Flow
Output Flow
Input PowerInput Power
Input Power
Pressure MPa Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/minOutput Flow L/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1500 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1800 r/min
80
90
70
60
500 5 10 15 20 25 30 35
Full Cut-off
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull FlowFull Flow
Full Cut-offFull Cut-offFull Cut-off
N=2500 r/min
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H56 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
126 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
90
100
110
80
N=1500 r/min
0
100
80
60
5 10 15 20 25 30 350
80
40
0
100
80
60
90
100
110
120
130
80
5 10 15 20 25 30 350
80
40
N=1800 r/min
130
140
150
160
170
120
0
100
40
80
N=2300 r/min
0
100
80
60
5 10 15 20 25 30 35
N=1500 r/min
70
80
50
60
30
40
10
20
050 70 90 110 130 150
70
80
50
60
30
40
10
20
050 70 90 110 130 150
N=1800 r/min
80
100
120
60
40
20
060 80 100 120 140 160
N=2300 r/min
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa
25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa
20 MPa
25 MPa
15 MPa
10 MPa
5 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
VolumetricEfficiency
VolumetricEfficiency
VolumetricEfficiency
Overall Efficiency Overall Efficiency Overall Efficiency
Output Flow
Output FlowOutput Flow
Input Power
Input PowerInput Power
Pressure MPa Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/minOutput Flow L/min
16
8
10
12
14
6
4
2
0 5 10 15 20 25 30 35
2300 r/min
1800 r/min1500 r/min 8
10
12
14
6
4
2
0 5 10 15 20 25 30 35
2300 r/min
2300 r/min
1800 r/min
1800 r/min
1500 r/min
1500 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1500 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1800 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=2300 r/min
Full Cut-o
ff
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull Flow
Full Flow
Full Cut-offFull Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H71 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
127
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
0
100
80
60
130
140
150
160
120
5 10 15 20 25 30 350
100
40
80
N=1500 r/min
150
160
170
180
190
140
N=1800 r/min
0
100
80
60
5 10 15 20 25 30 350
120
40
80
0
100
80
60
180
190
200
210
220
170
5 10 15 20 25 30 350
150
50
100
N=2100 r/min
60
80
100
120
40
20
080 100 120 140 160 180 200
60
80
100
120
40
20
080 100 120 140 160 180 200
0
20
40
60
80
100
120
140
120100 140 160 180 200 220
N=1500 r/min
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
N=1800 r/min
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
N=2100 r/min
35 MPa
30 MPa28 MPa
25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
VolumetricEfficiency
VolumetricEfficiency
VolumetricEfficiency
Overall Efficiency Overall Efficiency Overall Efficiency
Output FlowOutput Flow
Output Flow
Input Power
Input Power
Input Power
Pressure MPa Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/minOutput Flow L/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1500 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=1800 r/min
80
90
70
60
500 5 10 15 20 25 30 35
N=2100 r/min
Full Cut-off
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull Flow
Full Flow
Full Cut-offFull Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H100 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
128 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
180
220
140
N=1500 r/min100
80
60
0 5 10 15 20 25 30 350
150
50
100 200
240
280
160
N=1800 r/min100
80
60
0 5 10 15 20 25 30 350
150
50
100
20
0
40
60
80
100
120
140
10060 140 180 220 260
N=1500 r/min
20
0
40
60
80
100
120
140
160
180
12080 160 200 240 280
N=1800 r/min35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
Overall Efficiency Overall Efficiency
Output Flow
Output Flow
Input Power
Input
Power
Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/min
VolumetricEfficiency
VolumetricEfficiency
0
5
10
15
20
5 10 15 20 25 30 35 0
5
10
15
20
5 10 15 20 25 30 35
90
80
70
600 5 10 15 20 25 30 35
N=1500 r/min90
80
70
600 5 10 15 20 25 30 35
N=1800 r/min
1800 r/min
1500 r/min
1800 r/min
1800 r/min
1500 r/min
1500 r/minFull C
ut-off
Full Flow
Full
Cut
-off
Pow
er kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull Flow
Full Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H145 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
129
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
0
40
80
120
160
200
50 100 150 200 250 300
N=1500 r/min
0
40
80
120
160
210200
50 100 150 200 250 300 350
N=1800 r/min
240
280
200
N=1500 r/min100
80
60
0 5 10 15 20 25 30 350
80
160 260
300
340
220
N=1800 r/min100
80
60
0 5 10 15 20 25 30 350
240
80
160
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
35 MPa
30 MPa28 MPa25 MPa
20 MPa
15 MPa
10 MPa
5 MPa
Effic
ienc
y %
Out
put F
low
L/min
Inpu
t Pow
er kW
Pressure MPa
Overall Efficiency Overall Efficiency
Output FlowOutput Flow
Input Power
Input Power
Pressure MPa
Out
put F
low
L/min
Inpu
t Pow
er kW
Effic
ienc
y %
Inpu
t Pow
er kW
Inpu
t Pow
er kW
Output Flow L/min Output Flow L/min
VolumetricEfficiency
VolumetricEfficiency
0
4
8
12
16
20
5 10 15 20 25 30 35 0
10
20
5 10 15 20 25 30 35
N=1500 r/min90
80
70
600 5 10 15 20 25 30 35
90
80
70
600 5 10 15 20 25 30 35
N=1800 r/min
1800 r/min1500 r/min
1800 r/min
1800 r/min
1500 r/min
1500 r/min
Full Cut-off
Full Flow
Full
Cut
-off
Pow
er
kW
Dra
in L/min
Full Cut-off Pressure MPa Pressure MPa
Pressure MPa Pressure MPa
Noi
se L
evel
dB(A)
Noi
se L
evel
dB(A)
Full FlowFull Flow
Full Cut-offFull Cut-off
■ Performance Characteristic Curve
■ Input Power
■ Full Cut-off Power ■ Drain
■ Noise Level [One metre horizontally away from pump head cover]
Typical Performance Characteristics of Type A3H180 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Note) The dotted line in the graph indicates less than minimum adjustable flow.
130 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
6.386.35
28
89.8
13.5
119
89.8
126
37
28
82109.
581
174.5
10
Flow Adj. Screw13 Hex.
Suction Port26 Dia.
Discharge Port19 Dia.
M10 Thd. 19 Deep8 Places
74.5
31.5 31.5
26.2 23.8
52.4
50.8
Position of Drain Port 10
DEC.
74.5
39
49.5Fully Extended 205.5
44
100
165
115
120 120
14 Dia. Through28 Dia. Spotface
288
22
152
9.5
4 Places
X
Filling Port(22 Hex. Head Plug Furnished)
Drain PortRc1/2 Thd.
Pres. Adj. Screw13 Hex.
INC.
41.5
1816
22.2
322
.20
Dia
.
25.0
124
.85
Dia
.10
1.60
101.
55
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H16-FR01KK
Foot Mtg. : A3H16-LR01KK
View Arrow X★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
131
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
81
30.2
58.7
57.2
35 35
27.8
47.5
Fully Extended 223
114
61.5
40
49
189.5
12
28
12.5
90
94
150
143
114.
5
13.5
114.5
6.386.35
Positon of Dain Port 16.5
3
39.5
150
23
66.5
16 19
22
100
278
115150 115
158
DEC.
X
M10 Thd. 18 Deep4 Places
Flow Adj. Screw17 Hex.
Suction Port32 Dia.
M12 Thd. 22 Deep4 Places
Discharge Port24 Dia.
Pres. Adj. Screw13 Hex.
INC.
14 Dia. Through28 Dia. Spotface
Drain PortRc1/2 Thd.
4 Places
Filling Port(22 Hex. Head Plug Furnished)
82
25.4
025
.37
Dia
.
28.1
828
.00
Dia
.12
7.00
126.
95
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H37-FR01KK
Foot Mtg. : A3H37-LR01KK
View Arrow X★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
132 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
Positon of Dain Port
114.5
13.5
143
114.
5
107
62
47.5
40
Fully Extended 223
12.546.5
20612
510
23838
69.9
27.835.7
92
57.2
13
154
28
19
7.977.94
X
3
40150
150
231916
115115
278
22
67100
DEC.Flow Adj. Screw17 Hex.
Discharge Port26 Dia.
Suction Port38 Dia. M12 Thd. 22 Deep
4 Places
INC.Pres. Adj. Screw13 Hex.
14 Dia. Through28 Dia. Spotface
89
Drain PortRc3/4 Thd.
Filling Port(22 Hex. Head Plug Furnished)
M12 Thd. 22 Deep4 Places
158
4 Places
31.7
531
.70
Dia
.
35.3
235
.14
Dia
.12
7.00
126.
95
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H56-FR01KK
Foot Mtg. : A3H56-LR01KK
View Arrow X★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
133
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
X
114.5
154
114.
5
143
75
55 12.5
50
60.5
Fully Extended 264
140
14
28
229.5
114
106.5
77.8
31.8
41.5
42.9
41.5
66.7
117
9.569.53
Positaion of Drain Port
150
278
115 115
150
231916 3
22
100
53
80 158
DEC.Flow Adj. Screw17 Hex.
97
Discharge Port34 Dia.
M12 Thd. 19 Deep8 Places
Pres. Adj. Screw13 Hex.
INC.
14 Dia. Through28 Dia. Spotface
Suction Port51 Dia.
Drain PortRc3/4 Thd.
Filling Port(22 Hex. Head Plug Furnished)
Case Drain Port5 Hex. Soc.
4 Places
13.5
19
38.1
038
.05
Dia
.
42.3
642
.18
Dia
.12
7.00
126.
95
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H71-FR01KK
Foot Mtg. : A3H71-LR01KK
View Arrow X★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
134 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
X
95
60 12.5
210
196
161.
6
129.
5
81
63
161.611
8.5
144
249.5
17
39
Fully Extended 284.5
Position of Drain Port
11.1411.11
37
3229
210
32
3
63
108
165
398
165
140
220
198
DEC.
Flow Adj. Screw17 Hex.
103
66.7
45
31.8
88.9
50.8
45
112
Suction Port63 Dia.
M12 Thd. 19 Deep8 Places
Discharge Port34 Dia.
Pres. Adj. Screw13 Hex.
INC.
Drain PortRc3/4 Thd.
Filling Port(27 Hex. Head Plug Furnished)
22 Dia. Through43 Dia. Spotface4 Places
Case Drain Port5 Hex. Soc.
21.5
23
44.4
544
.40 49
.39
49.2
1
Dia
. 152.
4015
2.35
Dia
.
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H100-FR01KK
Foot Mtg. : A3H100-LR01KK
View Arrow X
★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
135
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
Pres. Adj. Screw13 Hex.
INC.
Drain PortRc3/4 Thd.
Flow Adj. Screw19 Hex.
DEC.
220
95
12.5
161.6
21.5
161.
6
200
81
63
139
129
152
(5.0
8)(5
.98)
22
Fully Extended 321.5
74
283.5
Position of Drain Port
66.7
31.8
49
88.9
50.8
49
111
12.7312.70
39
26
X
121
Discharge Port34 Dia.
M12 Thd. 22 Deep8 Places
Suction Port63 Dia.
Case Drain Port5 Hex. Soc.
Filling Port(27 Hex. Head Plug Furnished)
123 270 13
200
398
16548
3
29
32
32
123
140
37
210
212
165198
22 Dia. Through43 Dia. Spotface4 Places
56.4
356
.25
50.8
0 Dia
.50
.75
152.
40 D
ia.
152.
35
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H145-FR01KK
Foot Mtg. : A3H145-LR01KK
View Arrow X
★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
136 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
123 270 30
200
398
16565
3
29
32
32
123
140
37
210
212
165198
Flow Adj. Screw19 Hex.
DEC.
Drain PortRc3/4 Thd.
X
27.5
160
148.
5
80
12.5
Fully Extended 347.5 112
36.5
5353
61.9
106.
4
79.4
117129.5
138
161.6
21.5
161.
6
200
220
39
97.5
24
309.5
50.8
050
.75
12.7312.70
Position of Drain Port81
Case Drain Port5 Hex. Soc.
M16 Thd. 29 Deep8 Places
Suction Port76 Dia.
Discharge Port44 Dia.
Pres. Adj. Screw13 Hex.
INC.
Filling Port(27 Hex. Head Plug Furnished)
22 Dia. Through43 Dia. Spotface4 Places
Dia
.
56.4
356
.25 15
2.40
Dia
.15
2.35
DIMENSIONS INMILLIMETRES
Flange Mtg. : A3H180-FR01KK
Foot Mtg. : A3H180-LR01KK
View Arrow X
★ Install the pump so that the "Filling port" is at the top.
● For other dimensions, refer to “Flange Mtg.”.
137
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
Detail of Section X – X Detail of Section Y – Y Detail "Z"
■ Spear Parts List
A3H16/A3H37/A3H56-*R01KK
30241325341412268172053372
585960628
31 54 10 42 45 11 7 9 21 39 33 43 19 29 22 4 27 23 1524850413638563
4755493544494653
5
48
40
Z
X
X
Y
Y
72 7161626569666468637367 51 4418 1615
Item Name of PartsPart Numbers
Q'ty.A3H16 A3H37 A3H56
17 Gasket 2270-PK313655-3 2271-PK-313518-3 2272-PK313433-5 1
18 Back Up Ring 1310E-PK412440-0 1
36Cylindrical Roller Bearing NUP205E ―― ――
1Tapered Roller Bearing ―― 4T-30204 4T-33008
37Needle Roller Bearing HMK2025V2 ―― ――
1Tapered Roller Bearing ―― 4T-33006 4T-32205R
38 Oil Seal TCN254511 (FKM) TCN284811 (FKM) TCN355511 (FKM) 1
40 O-Ring S65 (NBR, Hs70) S85 (NBR, Hs70) S95 (NBR, Hs70) 1
41 O-Ring SO-NA-G60 SO-NA-G60 S71 (NBR, Hs70) 1
42 O-Ring SO-NB-P14 SO-NB-P18 SO-NB-P21 1
43 O-Ring SO-NB-P14 1
44 O-Ring SO-NB-P9 4
45 O-Ring SO-NB-P6 SO-NB-P8 SO-NB-P9 1
68 O-Ring SO-NA-A018 1
69 O-Ring SO-NB-P26 1
138 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type
■ Spear Parts List
A3H71/A3H100/A3H145/A3H180-*R01KK
YY
X
X
16128142634131572 30 18 11 22 19
58
59
60
39
6
54
17
31
53
10
40 42 12 8 9 23 37 41 27 21 24 4 25 51
50
47
29
36
56
3
494555483543484452
5
46
38
33
717269 616265666468637367 432051
Detail of Section X – X Detail of Section Y – Y
Item Name of PartsPart Numbers
Q'ty.A3H71 A3H100 A3H145 A3H180
19 Gasket 2273-PK212356-0 2274-PK212368-5 2275-PK212382-6 2276-PK212301-6 1
20 Back Up Ring 1310E-PK412440-0 1
29Tapered Roller Bearing 33009JR 4T-33206 HR33011 ――
1Cylindrical Roller Bearing ―― ―― ―― 2276-PK412859-1
30Tapered Roller Bearing 32205JR 4T-30210 4T-33206 ――
1Needle Roller Bearing ―― ―― ―― 2276-PK412860-9
36 Oil Seal TCN426512 (FKM) TCN507212 (FKM) TCN557812 (FKM) TCN557812 (FKM) 1
38 O-Ring S100 (NBR, Hs70) S110 (NBR, Hs70) S125 (NBR, Hs70) S130 (NBR, Hs70) 1
39 O-Ring SO-NA-G80 SO-NA-G95 SO-NA-G95 SO-NA-G105 1
40 O-Ring SO-NB-P24 SO-NB-P26 1
41 O-Ring SO-NB-P14 SO-NB-P18 SO-NB-P18 1
42 O-Ring SO-NB-P9 SO-NB-P10A 1
43 O-Ring SO-NB-P9 4
68 O-Ring SO-NA-A021 1
69 O-Ring SO-NB-P32 1
139
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
Graphic Symbol
■ Specifications
Model NumbersGeometric
Displacementcm3/rev
MinimumAdj. Flow cm3/rev
Max.OperatingPressure
MPa
Shaft Speed Ranger/min
Approx. Masskg
Max.★ Min. Flange Mtg. Foot Mtg.
A3H 37-*R09-***K-10 37.1 16.0
35
2700 600 23.0 30.5
A3H 56-*R09-***K-10 56.3 35.0 2500 600 29.0 36.5
A3H 71-*R09-***K-10 70.7 45.0 2300 600 38.0 45.5
A3H100-*R09-***K-10 100.5 63.0 2100 600 48.3 76.3
A3H145-*R09-***K-10 145.2 95.0 1800 600 63.0 91.0
A3H180-*R09-***K-10 180.7 125.0 1800 600 74.2 102.2
★ The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.
A3H Series High Pressure Variable Displacement Piston Pumps, Constant Power (Torque) Control Type
OM
O M
PP
P
S DR
■ Model Number Designation
A3H37 -F R 09 -11 A 4 K -10
Series Number Mounting Direction of Rotation Control Type Input Power
Setting
Frequency of Power Source
Pole Number of Electric
MotorShaft Extension★2 Design
Number
A3H37(37.1 cm3/rev)
F: Flange Mtg.
L: Foot Mtg.
(Viewed from)Shaft End
R: Clockwise★1
(Normal)
09: ConstantPower(Torque)ControlType
5.5: 5.5 kW |110: 110 kW
Refer to the tableon following pagefor combination.
A: 50 Hz
B: 60 Hz
4: 4 Poles
6: 6 PolesK: Keyed Shaft
10
A3H56(56.3 cm3/rev) 10
A3H71(70.7 cm3/rev) 10
A3H100(100.5 cm3/rev) 10
A3H145(145.2 cm3/rev) 10
A3H180(180.7 cm3/rev) 10
★1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.★2. We can also supply spline-type shaft extension. Consult Yuken for details.
140 A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
5 10 15 20 25 30 35
120
100
80
60
40
20
0
N=1500 r/min
30 kW
22 kW18.5 kW15 kW
5 10 15 20 25 30 35
120
100
80
60
40
20
0
N=1500 r/min
37 kW
30 kW
22 kW18.5 kW
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
● Combination of pump series and input power setting (○= available combinations)
Model NumbersInput Power Setting kW
Pole Number of Electric Motor : 4P Pole Number of Electric Motor : 6P11 15 18.5 22 30 37 45 55 75 90 110 5.5 7.5 11 15 18.5 22 30 37 45 55 75
A3H 3750 Hz ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○
A3H 5650 Hz ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○
A3H 7150 Hz ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○
A3H10050 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○
A3H14550 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
A3H18050 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
■ Pipe Flange KitsFor pipe flange, refer to form of pressure compensator type on page 121.
Typical Performance Characteristics of Control Type 09 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
● A3H37
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
5 10 15 20 25 30 35
70
60
50
40
30
20
10
0
N=1500 r/min
18.5 kW15 kW11 kW
N=1800 r/min
22 kW18.5 kW15 kW11 kW
5 10 15 20 25 30 35
70
60
50
40
30
20
10
0
● A3H56
141
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
Pressure MPa
Out
put F
low
L/
min
5 10 15 20 25 30 35
150
125
100
75
50
25
0
N=1500 r/min
37 kW
30 kW
18.5 kW22 kW
5 10 15 20 25 30 35
200
175
150
125
100
75
50
25
0
N=1500 r/min N=1800 r/min
55 kW
45 kW
30 kW37 kW
22 kW
5 10 15 20 25 30 35
300
250
200
150
100
50
0
N=1500 r/min N=1800 r/min
75 kW
55 kW
37 kW45 kW
30 kW
5 10 15 20 25 30 35
300
350
250
200
150
100
50
0
N=1500 r/min
90 kW75 kW
55 kW45 kW
37 kW
5 10 15 20 25 30 35
300
350
250
200
150
100
50
0
N=1800 r/min
110 kW
90 kW75 kW
55 kW
45 kW
5 10 15 20 25 30 35
300
250
200
150
100
50
0
90 kW
75 kW
45 kW55 kW
37 kW
5 10 15 20 25 30 35
200
175
150
125
100
75
50
25
0
55 kW
45 kW30 kW
37 kW
5 10 15 20 25 30 35
150
125
100
75
50
25
0
N=1800 r/min
45 kW
37 kW
22 kW
30 kW
● A3H71
● A3H100
● A3H145
● A3H180
Typical Performance Characteristics of Type A3H-09 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
142 A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
YUKEN
121
27.830.2
3535
57.2
58.7
154 82
94
189.5
41.8
1228
90
139
61.512.5 4947.540
13.5
143
114.5
150
Position of Drain Port 16.5114.5
6.386.35
Drain PortRc1/2 Thd. Flow Adj. Screw
17 Hex.DEC.
Fully
Ext
ende
d11
2
Fully Extended223
127.
0012
6.95
Dia
.
Input Power Setting Screw 2
M10 Thd. 18 Deep4 Places
M12 Thd. 22 Deep4 Places
Discharge Port24 Dia.
Suction Port32 Dia.
Filling Port(22 Hex. Head Plug Furnished)
1
Pres. Adj. Screw13 Hex.
INC.
28.1
828
.00
25.4
025
.37
Dia
.
112
3827.8
3835.7
57.2
69.9
129
89162
102
150
107
20645.5
1328
12.5 46.562
47.540
154
13.5Position of Drain Port 19
143
114.5
114.5
7.977.94
YUKEN
Fully
Ext
ende
d
Fully Extended239
127.
0012
6.95
Dia
.
Discharge Port26 Dia.
Suction Port38 Dia.
M12 Thd. 22 Deep8 Places
Flow Adj. Screw17Hex.
Filling Port(22 Hex. Head Plug Furnished)
DEC.
1Drain PortRc3/4 Thd.
Pres. Adj. Screw13 Hex.
INC.
35.3
235
.14
31.7
531
.70
Dia
.
Input Power Setting Screw 2
Flange Mtg. : A3H37-FR09-***K
Flange Mtg. : A3H56-FR09-***K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 131 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 132 for the dimensions of mounting bracket.
★1. Install the pump so that the "Filling Port" is at the top.★2. Do not touch the screw because it is adjusted at the time of shipment.
★1. Install the pump so that the "Filling Port" is at the top.★2. Do not touch the screw because it is adjusted at the time of shipment.
143
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
114
117 175
77.8
66.7
134.5
41.541.5
31.842.9
97167.5
229.5
54.5
14
7512.5 5560.550
143
114.5
13.5Position of Drain Port 19
154114.5
9.589.53
28
YUKEN
Filling Port(22 Hex. Head Plug Furnished)
1
Input Power Setting Screw 3
2
Fully Extended264
127.
0012
6.95
Dia
. 42.3
642
.18
Dia
.38
.10
38.0
5
Drain PortRc3/4 Thd.
M12 Thd. 19 Deep8 Places
Suction Port51 Dia.
Flow Adj. Screw17 Hex.
Discharge Port34 Dia.
DEC.
Pres. Adj. Screw13 Hex.
INC.
Case Drain Port5 Hex. Soc.(Opposite Side)
Fully
Ext
ende
d11
3
118.5
113
179
142.5
88.9
66.7
31.850.8
4545
175.5 103
129.5
249.5
59.2
17
9512.5 608163
21.5
196
161.6
210
Position of Drain Port 23
39
161.6
YUKEN
Filling Port(27 Hex. Head Plug Furnished)
1
Input Power Setting Screw 3
2
Fully Extended284.5
11.1411.11
152.
4015
2.35
Dia
.
Drain PortRc3/4 Thd.
M12 Thd. 19 Deep8 Places
Suction Port63 Dia.
Flow Adj. Screw17 Hex.
Discharge Port34 Dia.
DEC.
Pres. Adj. Screw13 Hex.
INC.
Case Drain Port5 Hex. Soc.(Opposite Side)
Fully
Ext
ende
d
49.3
949
.21
Dia
.44
.45
44.4
0
Flange Mtg. : A3H71-FR09-***K
Flange Mtg. : A3H100-FR09-***K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 133 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 134 for the dimensions of mounting bracket.
★1. Install the pump so that the "Filling Port" is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.★3. Do not touch the screw because it is adjusted at the time of shipment.
★1. Install the pump so that the "Filling Port" is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.★3. Do not touch the screw because it is adjusted at the time of shipment.
144 A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type
3
1
2
DEC.
INC.
12.7312.70
139
Fully Extended 321.5
283.5
21.5 81
161.
6
200
2273.5
63
161.6220
Position of Drain Port 12.5
95
74
129
187
Fully
Ext
ende
d 50.8
149
49 49
88.9
31.8
66.7
182 111
113
26
39
63 Dia.
13 Hex.
5 Hex. Soc.(Rear Side)
Case Drain Port
Rc3/4 Thd.Drain Port
Suction Port
34 Dia.
19 Hex.
Filling Port(27 Hex. Head Plug Furnished)
Input Power Setting Screw
M12 Thd. 19 Deep8 Places
Pres. Adj. Screw Flow Adj. Screw
Discharge Port15
2.40
152.
3556
.43
56.2
5
Dia
.
50.8
050
.75
Dia
.
2
12.7312.70
152.
4015
2.35
56.4
356
.25
Dia
.
148.
5
309.5
97.521.5
200
161.
6
82
80
161.6220
12.5112
81
53
138
195
106.
4
61.9
15653
79.4
36.5
189 117
Fully
Ext
ende
d11
3
24
Fully Extended 347.5
39
Position of Drain Port 27.576 Dia.
M16 Thd. 29 Deep
44 Dia.
8 PLACES
Discharge Port
Suction Port
(27 Hex. Head Plug Furnished)Filling Port
19 Hex.Flow Adj. Screw
Case Drain Port
(Rear Side)5 Hex. Soc.
Drain PortRc3/4 Thd.
13 Hex.Pres. Adj. Screw
Input Power Setting Screw
INC.
DEC.
3
1
50.8
050
.75
Dia
.
Flange Mtg. : A3H145-FR09-***K
Flange Mtg. : A3H180-FR09-***K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 135 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 136 for the dimensions of mounting bracket.
★1. Install the pump so that the "Filling Port" is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.★3. Do not touch the screw because it is adjusted at the time of shipment.
★1. Install the pump so that the "Filling Port" is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.★3. Do not touch the screw because it is adjusted at the time of shipment.
145
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
Graphic Symbol
■ Specifications
Model NumbersGeometric
Displacementcm3/rev
Operating Pressure★1
MPaLoad Sensing
Pres. DifferenceΔPMPa
Shaft Speed Ranger/min
Approx. Masskg
Rated Intermittent Max.★3 Min. Flange Mtg. Foot Mtg.
A3H 16-*R14K-10 16.3
28 351.5
At the time(of shipment)
3600 600 17.5 26.4
A3H 37-*R14K-10 37.1 2700 600 22.5 30.0
A3H 56-*R14K-10 56.3 2500 600 28.7 36.2
A3H 71-*R14K-10 70.7 2300 600 38.0 45.5
A3H100-*R14K-10 100.5 2100 600 47.9 75.9
A3H145-*R14K-10 145.2 1800 600 63.0 91.0
A3H180-*R14K-10 180.7 1800 600 73.4 101.4
★1. The operating pressure means pump discharge pressure.★2. Load pressure difference ΔP is adjustable in range of 1.0 - 3.0 MPa.★3. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.
A3H Series High Pressure Variable Displacement Piston Pumps, Load Sensing Type
★
"L""PP"
MO
■ Model Number Designation
A3H37 -F R 14 K -10
Series Number Mounting Direction of Rotation Control Type Shaft Extension★2 Design Number
A3H16(16.3 cm3/rev)
F: Flange Mtg.
L: Foot Mtg.
(Viewed from)Shaft End
R: Clockwise★1
(Normal)
14: Load Sensing Type K: Keyed Shaft
10
A3H37(37.1 cm3/rev) 10
A3H56(56.3 cm3/rev) 10
A3H71(70.7 cm3/rev) 10
A3H100(100.5 cm3/rev) 10
A3H145(145.2 cm3/rev) 10
A3H180(180.7 cm3/rev) 10
★1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.★2. We can also supply spline-type shaft extension. Consult Yuken for details.
★ A flow control valve is not included with the pump.Install the valve separately.
★2
146 A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
30252015105 35
100
120
140
80
40
60
20
0
P=1.5 MPaΔN=1800 r/min
30252015105 35
10
12
14
8
4
6
2
0
2300 r/min
1800 r/min1500 r/min
30252015105 35
15
20
10
5
0
1/10 Q1/8 Q1/4 Q1/2 Q2300 r/min1800 r/min1500 r/min
2300 r/min1800 r/min1500 r/min
Pressure MPa
Out
put F
low
L/
min
Full Cut-off Pressure MPa
Full
Cut
-off
Pow
er
kW
Pressure MPa
Dra
in
L/m
in
Load Sensing Pressure Difference
MAX. Q
Full Cut-off
Cut-off pressure or less
★ Ask Yuken for Performance caracteristics of other series than A3H71.
■ Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.
Typical Performance Characteristics of Control Type A3H71 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]
Pump Model Numbers Name of PortPipe Flange Kits Number
Threaded Connection★ Socket Welding Butt Welding
A3H 16-*R14KSuction F5-08-A-10 F5-08-B-10 F5-08-C-10
Discharge F6-06-A-M-10 F6-06-B-M-10 ――
A3H 37-*R14KSuction F5-10-A-10 F5-10-B-10 F5-10-C-10
Discharge F6-08-A-M-10 F6-08-B-M-10 ――
A3H 56-*R14KSuction F5-12-A-10 F5-12-B-10 F5-12-C-10
Discharge F6-08-A-M-10 F6-08-B-M-10 ――
A3H 71-*R14KSuction F5-16-A-10 F5-16-B-10 F5-16-C-10
Discharge F6-10-A-M-10 F6-10-B-M-10 ――
A3H100-*R14KA3H145-*R14K
Suction F5-20-A-10 F5-20-B-10 F5-20-C-10
Discharge F6-10-A-M-10 F6-10-B-M-10 ――
A3H180-*R14KSuction F5-24-A-10 F5-24-B-10 ――
Discharge F6-12-A-M-10 F6-12-B-M-10 ――
★ These flanges are with tapered threaded port, maximum pressure is restricted at 31 MPa.
■ Pressure vs. Output Flow ■ Full Cut-off Input Power
■ Drain
147
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
137.5
Fully Extended 205.589.5
75.5
31.5
28
89.8
13.5
119
89.8
126
49.5
37
39 9.5
28
82
81
174.5
10
74.5
31.5 31.5
26.2 23.8
52.4
50.8
Load Sensing Port "L"Rc1/4 Thd.
131.5
124.5 Position of Drain Port
6.386.35
Position of Pilot Port "PP"
101.
6010
1.55
Dia
.
Pilot Port "PP"Rc1/4 Thd. (With plug set)
Flow Adj. Screw13 Hex.
Suction Port26 Dia.
Discharge Port19 Dia.
M10 Thd. 19 Deep8 Places
DEC.
Drain PortRc1/2 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.Filling Port★1
(22 Hex. Head Plug Furnished)
Position of Load Sensing Port "L" 10
25.0
124
.85
22.2
322
.20
Dia
.
92 82
78
34
58.7
35 35
27.830.2
57.2
146.5
139.5
142
90
189.5
12 28
12.54947.5
40
94
114.5
13.5
114.5
143
150
61.5
★1
Drain PortRc1/2 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.
Fully Extended 223
6.386.35
Position of Drain Port
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set)
Flow Adj. Screw17 Hex.
Suction Port32 Dia.
Discharge Port24 Dia.
M12 Thd. 22 Deep4 Places
M10 Thd. 18 Deep4 Places
DEC.
127.
0012
6.95
Dia
.
Filling Port(22 Hex. Head Plug Furnished)
Position of Pilot Port "PP"
Position of Load Sensing Port "L" 16.5
28.1
828
.00
Dia
.25
.40
25.3
7
Flange Mtg. : A3H16-FR14K
Flange Mtg. : A3H37-FR14K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 130 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 131 for the dimensions of mounting bracket.
★1. Install the pump so that the "Filling Port" is at the top.
★1. Install the pump so that the "Filling Port" is at the top.
148 A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
94 89
80
36
153
57.2
38
35.7 27.838
69.9
62
102
13
206
12.546.5
47.5
40
107
114.5
13.5
114.5
143
154
28
★1
Drain PortRc3/4 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set)
Flow Adj. Screw17 Hex.
Suction Port38 Dia. Discharge Port
26 Dia.
M12 Thd. 22 Deep8 Places
DEC.
Fully Extended 239
161.5
154.5 Position of Drain Port
7.977.94
127.
0012
6.95
Dia
.
Filling Port(22 Hex. Head Plug Furnished)
Position of Pilot Port "PP"
Position of Load Sensing Port "L" 19
35.3
235
.14
Dia
.31
.75
31.7
0
★1
★2
97106.5
9143.5
41.5 41.542.9 31.8
77.8
66.7
114
159
Fully Extended 264
55
75
12.5
60.5
50
117
14
229.5
143
114.5
154
114.5
13.5
28
Drain PortRc3/4 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set) Flow Adj. Screw
17 Hex.
Suction Port51 Dia.
Discharge Port34 Dia.
M12 Thd. 19 Deep8 Places
DEC.
9.569.53
174
181
Position of Drain Port
127.
0012
6.95
Dia
.
Filling Port(22 Hex. Head Plug Furnished)
Position of Pilot Port "PP"
Position of Load Sensing Port "L"
Case Drain Port5 Hex. Soc.
19
42.3
642
.18
Dia
.38
.10
38.0
5
Flange Mtg. : A3H56-FR14K
Flange Mtg. : A3H71-FR14K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 132 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 133 for the dimensions of mounting bracket.
★1. Install the pump so that the "Filling Port" is at the top.
★1. Install the pump so that the “Filling Port” is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.
149
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
★1
★2
118.5
163
88.9
103112
9042.5
45 4550.8 31.8
66.7
Fully Extended 284.5
60
95
12.5
81
63
129.5
210
161.6
21.5
196
161.6
17 39
249.5
11.1411.11
Drain PortRc3/4 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex. Pressure Adj. Screw
14 Hex.
INC.INC.
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set)
Flow Adj. Screw17 Hex.
Suction Port63 Dia.
Discharge Port34 Dia.
M12 Thd. 19 Deep8 Places
DEC.
152.
4015
2.35
Dia
.
196.5
189.5
Position of Drain Port
Position of Pilot Port "PP"
Position of Load Sensing Port "L"
23
49.3
949
.21
Dia
.44
.45
44.4
0
Filling Port(27 Hex. Head Plug Furnished)
Case Drain Port5 Hex. Soc.
121
49
50.8
49
31.8
88.9
66.7
21.5
283.5
22
220
161.6
200
161.6
111
93.546
129
171
Fully Extended 321.5
74
95
12.5
81
63
139 12.73
12.70
39
Drain PortRc3/4 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set)
Flow Adj. Screw19 Hex.
Suction Port63 Dia.
Discharge Port34 Dia.
M12 Thd. 19 Deep8 Places
DEC.
152.
4015
2.35
Dia
.50.8
050
.75
Dia
.
Position of Drain Port
222.5
215.5
Case Drain Port ★2
5 Hex. Soc.
Filling Port ★1
(27 Hex. Head Plug Furnished)
Position of Pilot Port "PP"
Position of Load Sensing Port "L"
26
56.4
356
.25
Flange Mtg. : A3H100-FR14K
Flange Mtg. : A3H145-FR14K
DIMENSIONS INMILLIMETRES
DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 134 for the dimensions of mounting bracket.
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 135 for the dimensions of mounting bracket.
★1. Install the pump so that the “Filling Port” is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.
★1. Install the pump so that the “Filling Port” is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.
150 A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type
117129.5
87.5
40
53 53
61.9 36.5
106.4
79.4
138
179
Fully Extended 347.5 220
161.6
21.5
161.6
200
81
112
12.5
97.5
80
148.5
24
309.5
39
Drain PortRc3/4 Thd.
Load Sensing Pres. Difference Adj. Screw13 Hex.
Pressure Adj. Screw14 Hex.
INC.
INC.
Load Sensing Port "L"Rc1/4 Thd.
Pilot Port "PP"Rc1/4 Thd. (With plug set) Flow Adj. Screw
19 Hex.
Suction Port76 Dia.
Discharge Port44 Dia.
M12 Thd. 29 Deep8 Places
DEC.
12.7312.70
244.5
237.5 Position of Drain Port
152.
40 D
ia.
152.
35
50.8
0 D
ia.
50.7
556
.43
56.2
5
Filling Port ★1
(27 Hex. Head Plug Furnished)
Position of Pilot Port "PP"
Position of Load Sensing Port "L"
Case Drain Port ★2
5 Hex. Soc.
27.5
Flange Mtg. : A3H180-FR14K DIMENSIONS INMILLIMETRES
● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 136 for the dimensions of mounting bracket.
★1. Install the pump so that the “Filling Port” is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.
151
PISTON PUMPS
A3
H S
erie
s
A3H Series High Pressure Variable Displacement Piston Pumps Simple Two-Pressure Two-Flow Control Type
■ Specifications
Model NumbersGeometric
Displacementcm3/rev
Delivery Volume Adj. Rangecm3/rev
Operating PressureMPa Shaft Speed
Ranger/min
Large Displacement
(QH)
Small Displacement
(QL)Rated Intermittent
A3H16-*R55-KK-10 16.3 8 - 16.3 ★ - 8
25 25
600 - 3600
A3H37-*R55-KK-10 37.1 16 - 37.1 ★ - 19 600 - 2700
A3H56-*R55-KK-10 56.3 35 - 56.3 ★ - 30 600 - 2500
A3H71-*R55-KK-10 70.7 45 - 70.7 ★ - 35 600 - 2300
A3H100-*R55-KK-10 100.5 63 - 100.5 ★ - 48 600 - 2100
A3H145-*R55-KK-10 145.2 95 - 145.2 ★ - 60 600 - 1800
A3H180-*R55-KK-10 180.7 125 - 180.7 ★ - 90 600 - 1800
A3H Series High Pressure Variable Displacement Piston Pumps, Simple Two-Pressure Two-Flow Control Type
■ Model Number Designation
A3H37 -F R 55 K K -10
Series Number Mounting Direction of Rotation Control Type Pres. Adj. Range Shaft Extension Design
Number
A3H16(16.3 cm3/rev)
F: Flange Mtg.
L: Foot Mtg.
(Viewed from)Shaft End
R: Clockwise (Normal)
55: Simple Two-Pressure Two-Flow Control Type
K: 5 - 25 K: Keyed Shaft
10
A3H37(37.1 cm3/rev) 10
A3H56(56.3 cm3/rev) 10
A3H71(70.7 cm3/rev) 10
A3H100(100.5 cm3/rev) 10
A3H145(145.2 cm3/rev) 10
A3H180(180.7 cm3/rev) 10
Graphic Symbol
QH
QL
Performance Characteristics
Pressure →
Out
put F
low →
QH
QL
PL PH
Note) ★ Pressure, PH, is the minimum required flow of the external relief valve.
■ InstructionPlease install the external relief valve since there is no full cut-off performance on this pump.
Consult Yuken when detailed such as dimensions figures is required.