3.2 variable displacement
mechanical compensation
Ordering Code 3.2.1 Mechanical Compensation
Technical Information
3.2.2 Specifications
3.2.3 Hydraulic Fluids
3.2.4 Viscosity Range
3.2.5Temperature Range
3.2.6 Seals
3.2.7 Filtration
3.2.8 Allowable Input and Throughdrive Torque
3.2.9 Installation Notes
3
Control Options 3.2.10 Mechanical Pressure Control
Performance Data
Dimensions
3.2.11
3.2.12
3.2.13
3.2.14
PVV101-05 -6 / -10 / -12
PVV101-1 -16 / -20 / -25
PVV101-2 -31 / -40 / -50
PVV101-3 -63 / -80 / -100
3.2.15
3.2.16
3.2.17
3.2.18
PVV101-05 -6 / -10 / -12
PVV101-1 -16 / -20 / -25
PVV101-2 -31 / -40 / -50
PVV101-3 -63 / -80 / -100
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173
Ordering Code
3.2.1 Variable Displacement Mechanical Compensation
PVV101 – 05 – 12 F H R M Q - KL - XXXX
Variable Displacement Vane Pump
with Mechanical Compensation
Frame Size
1
2
3
05
Displacement
6 10 12 16 20 25 31 40 50 63 80 100
|
|
|
|
|
|
Flange and Porting
F
ISO 3019/2 – BSP ISO 228/1 thread
FS
SAE – BSP ISO 228/1 thread (only size 2 and 3)
FGR2
Size 2 gear pump – GAS BSP ISO 228/1 thread
B
Subplate – BSP ISO 228/1 thread
US
SAE – UNF ISO 11926/1 thread
for size 2 and 3 secondary pump use FUNC
FUNC
ISO 3019/2 – UNF ISO 11926/1 thread
only for size 2 and 3 secondary pump in combination with US
Pressure Setting Range
L
15- 50 bar for size 05 / 1 / 2 / 3
H
30- 80 bar for size 3 only
30-100 bar for size 05 / 1 / 2 only
K
80-150 bar for size 05 only
Rotation
R
Right Hand (clockwise)
viewed from shaft end
Seals
MNBR
E
FPM (FKM)
Flow Adjustment
Q
Volume Adjustment Screw (Standard)
Options
KL
Key Lock Compensator
AThroughdrive for gear pump (size 05 only)
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Modification Number
XXXX
Determined by Manufactur
174
Technical information
3.2.2 Specifications
Pump Size
6
10
12
16
20
25
31
40
50
63
80
6.9
11.0
13.1
17.9
22.1
26.9
34.5
42.8
53.1
69.0
86.2 105.5
Geometric Displacement
[cm3 /rev]
Pressure
Rated
[bar]
Shaft
Speed
min.
[rpm]
800
max.
[rpm]
1800
Approx. Mass
[kg]
Permissible axial shaft force
[N]
Permissible radial shaft force
[N]
150
6.5
100
12.0
100
80
32.0
44.0
No Radial or Axial Load allowed.
3.2.3 Hydraulic Fluids
The Pump series is prepared to be used with:
Petroleum Base Oil (Normal Mineral Oil)
HLP acc DIN ISO 51524/2 or
HM ISO 6743/4
Synthetic Fluid
(Polyol Ester, HFD-U)
3
3.2.4 Viscosity Range
Normal operating viscosity: 22 - 68 cSt (mm2 / s)
Maximal viscosity
for short time periods:
400
cSt (mm2 / s)
3.2.5 Temperature Range
-10 to +50 °C
Note:
The highest fluid temperature will be at the drain port of the pump,
up to 20 °C higher than in the reservoir.
3.2.6 Seals
The pump series is equipped with NBR or FPM (FKM) seals.
The actual seal material is specified in the model code of each single unit.
3.2.7 Filtration
For maximum pump and system component life time, the system
should be protected from contamination by effective filtration.
Maintain the degree of contamination within
18/16/13 per ISO 4406/99
or
Grade 7 per NAS 1638
Nominal Size
Size 05
Size 1
Size 2
Size 3
Geometric
[cm³/r]
6.3-10-12.5 16-20-25 31.5-40-50 63-80-100
displacement
Maximum torque on [Nm] conical cylindrical
197
400
740
primary shaft
70
110
Maximum torque for [Nm]
20
55
110
110 / 180*
secondary pump
* only for coupling size 3 and secondary pump size 3
Note:
Combined pumps should be mounted in decreasing order of absorbed power.
Attention: the sum of the torques of the combined pumps must not exceed the
maximum torque premissible on primary pump
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3.2.8 Allowable Input and Throughdrive Torques
175
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3.2.9 Installation Notes
176
Step 1
PVV101 pumps size 05 and 1 can be mounted in
any positions. PVV101 pumps sizes 2 and 3 must be
mounted with horizontal axis and the compensator
device upward (see figure).
When the pump is installed over the tank oil level, it
is recommended to pay attention to the inlet pressure.
The minimum section of the inlet pipe must be equal
to the section of the thread inlet port of the pump.
The inlet pipes should be as short as possible, with a small
numbers of bends and without inside section changes.
Step 3
Motor-pump coupling must be made with a self-aligning
coupling with convex teeth and with cam in polyamide
material.
When assembling, maximum attention must be given to
the distance between the two half-couplings which must
imperatively fall within the value specified in the diagram
below (see detail A).
Other types of motor-pump couplings are not permitted.
No induced Radial or Axial Loads are allowed on
the pump shaft.
Step 2
All return and drain pipes must be placed so that the oil will
not re-sucked directly from the pump (see figure).
The oil tank must be suitably sized in order to exchange
the thermal power generated to the system components
and to have a low re-cycle speed.
To ensure maximum pump working life, inlet oil temperature
must never be above 50 °C.
In systems where the pump runs for a long time in
zero flow setting condition, it is recommended to install
a heat exchanger in the drain line. The pressure on the
drain port must never be in excess of the specified value.
The drain pipe must always be independent of other
return lines, connected directly to the tank and extended
sufficiently inside the tank so as to be below the minimum
oil level in order to avoid generating foam. Moreover,
the drain pipe must be free of restrictions and as far
as possible away from the inlet pipe.
Step 4
During the first installation, the pump must be run
in maximum flow condition (P connected to T),
with the oil flowing directly into the tank, thus to induce
air bleeding.
This phase must go on for several minutes.
Pump priming (oil output to the delivery side) must occur
within a few seconds, otherwise the pump must be turned
off and the operation repeated.
Subsequent start-ups in zero flow setting conditions
are admissible only with pressure not exceeding 30 bar, and
at condition that the system and pump
be completely filled up with oil.
During the starting operations, both the first and the
followings, the difference between the oil temperature and
the environment temperature (body pump temperature)
must not exceed by more than 20 °C.
Note:
For further informations, please consult the leaflet "Installation and start-up instructions for variable displacements vane pumps"
control options
3.2.10Mechanical Pressure Compensation
The PVV101 variable displacement vane pumps come
in four nominal sizes: Size 05 - 1 - 2 - 3, each of which
is available in three different displacements.
The PVV101 low pressure pumps (100 bar) are equipped
with a Mechanical pressure regulating device.
Pump components include
a body ,
a drive rotor 
which houses the vanes ,
vanes that convey the fluid into
the inlet and outlet chambers;
a stator  (mobile circular ring) for varying
eccentricity and consequently displacement;
side distribution plates
with Axial Hydrostatic Compensation 
which delimit the inlet and outlet chambers;
a guide block balancing adjustment screw 
(imperatively not be tampered with by the user);
a displacement adjustment piston ,
a maximum volume adjustment screw 
a pressure regulating device ;
a pressure regulator adjustment .
3
  
 
 
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 
177
performance data
3.2.11PVV101-05-6 / -10 / -12
Volumetric efficiency - zero flow setting curve
PVV101-05-6
Values established with zero flow setting
PVV101-05-6 / -10 / -12
Volumetric efficiency - zero flow setting curve
PVV101-05-10
Maximum noise level
with sound-level meter placed at 1 meter
from pump, flexible coupling
PVV101-05-6 / -10 / -12
Volumetric efficiency - zero flow setting curve
PVV101-05-12
Response time and peak pressure
PVV101-05-6 / -10 / -12
Power consumption with maximum flow
Pressure peaks are due to the test system.
Pressure peaks exceeding 30 %
of the maximum operating pressure
must be eliminated.
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Power consumption with zero flow setting
178
3.2.12PVV101-1-16 / -20 / -25
Values established with zero flow setting
PVV101-1-16 / -20 / -25
Volumetric efficiency - zero flow setting curve
PVV101-1-20
Maximum noise level
with sound-level meter placed at 1 meter
from pump, flexible coupling
PVV101-1-16 / -20 / -25
Volumetric efficiency - zero flow setting curve
PVV101-1-25
Response time and peak pressure
PVV101-1-16 / -20 / -25
Power consumption with maximum flow
Pressure peaks are due to the test system.
Pressure peaks exceeding 30 %
of the maximum operating pressure
must be eliminated.
Power consumption with zero flow setting
3
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Volumetric efficiency - zero flow setting curve
PVV101-1-16
179
3.2.13PVV101-2-31 / -40 / -50
Volumetric efficiency - zero flow setting curve
PVV101-2-31
Values established with zero flow setting
PVV101-2-31 / -40 / -50
Volumetric efficiency - zero flow setting curve
PVV101-2-40
Maximum noise level
with sound-level meter placed at 1 meter
from pump, flexible coupling
PVV101-2-31 / -40 / -50
Volumetric efficiency - zero flow setting curve
PVV101-2-50
Response time and peak pressure
PVV101-2-31 / -40 / -50
Power consumption with maximum flow
Pressure peaks are due to the test system.
Pressure peaks exceeding 30 %
of the maximum operating pressure
must be eliminated.
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Power consumption with zero flow setting
180
3.2.14PVV101-3-63 / -80 / -100
Values established with zero flow setting
PVV101-3-63 / -80 / -100
Volumetric efficiency - zero flow setting curve
PVV101-3-80
Maximum noise level
with sound-level meter placed at 1 meter
from pump, flexible coupling
PVV101-3-63 / -80 / -100
Volumetric efficiency - zero flow setting curve
PVV101-3-100
Response time and peak pressure
PVV101-3-63 / -80 / -100
Power consumption with maximum flow
Pressure peaks are due to the test system.
Pressure peaks exceeding 30 %
of the maximum operating pressure
must be eliminated.
Power consumption with zero flow setting
3
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Volumetric efficiency - zero flow setting curve
PVV101-3-63
181
dimensions
3.2.15PVV101-05-6 / -10 / -12
PVV101-05-6 / -10 / -12 (F / US)
Flange
F (ISO)
US (SAE)
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A
3
∕4" BSP
1 1∕16 "-12
UN
B
3
∕8" BSP
∕4"-16
UNF
3
PVV101-05-6 / -10 / -12 (F GR2)
1
C
ØD
E
ØF
G
H
ØK
ØL
∕4" BSP
20
44
6
22.5
157
80
103
∕2"-20
UNF
15.88
32
4.76
17.9
145
80
103
1
Combined pumps
Primary Pump PVV101-05-...F...-A
A
C
B
D
E
Secondary Pump
A
B
C
D
E
Gear Pump size 1
55
90
44
155
dependent on selected
gear pump
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183
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3.2.16PVV101-1-16 / -20 / -25
184
PVV101-1-16 / -20 / -25 (F)
PVV101-1-16 / -20 / -25 (US)
PVV101-1-16 / -20 / -25 (B)
3
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Combined pumps
Primary Pump PVV101-1- ... F
Secondary Pump
A
B
C
D
E
PVV101-05- ... F / US
205
113
46
269
26
PVV101-05- ... F-GR2
204
120
46
276
26
Secondary Pump
A
B
C
D
E
PVV100-1- ... F/
PVV101-1- ... F
26
207
46
207
159
Secondary Pump
C
A
B
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D
186
E
A
B
C
D
Gear Pump size 1
132
64
46
196
Gear Pump size 2
132
72
46
204
E
dependent on selected
gear pump
3.2.17PVV101-2-31 / -40 / -50
PVV101-2-31 / -40 / -50 (F / F UNC)
3
Flange
ØA
B
ØC
D
E
F (ISO)
38
SAE (3000) 1 ½"
M12 x 45
25
SAE (3000) 1"
M10 x 35
½" BSP
38
SAE (3000) 1 ½"
½"-13 UNC
25
SAE (3000) 1"
3
∕8"-16 UNC
F UNC (ISO)
only secondary pump
∕8-14 UNF
PVV101-2-31 / -40 / -50 (FS / US)
Flange
ØA
B
ØC
D
FS (SAE)
38
SAE (3000) 1 1∕2"
M12 x 45
25
SAE (3000) 1"
M10 x 35
US (SAE)
38
SAE (3000) 1 1∕2"
½"-13 UNC
25
SAE (3000) 1"
3
∕8"-16 UNC
1
E
ØF
G
H
J
K
∕2" BSP
32
60
279
35
10
∕8"-14
UNF
31.75
58
277
34.5
6.35
7
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PVV101-2-31 / -40 / -50 (B)
Combinde Pumps
Primary Pump PVV101-2- ... F
Secondary Pump
A
B
C
D
E
F
PVV101-05- ... F / US
258
113
60
308
40
30
PVV101-05- ... F-GR2
263
120
60
320
40
30
3
Secondary Pump
A
B
C
D
E
F
PVV100-1- ... F /
PVV101-1- ... F
40
246
30
159
60
260
Secondary Pump
A
B
C
D
E
F
G
PVV100-2- ... F /
PVV101-2- ... F
40
275
30
275
220
275
60
A
B
C
D
Gear Pump size 1
173
90
60
263
Gear Pump size 2
173
90
60
263
Gear Pump size 3
173
90
60
263
A
C
B
D
E
E
dependent on selected
gear pump
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Secondary Pump
189
3.2.18PVV101-3-63 / -80 / -100
PVV101-3-63 / -80 / -100 (F / F UNC)
Flange
ØA
B
ØC
D
E
F (ISO)
51
SAE (3000) 2"
M12 x 45
32
SAE (3000) 1 1∕4"
M10 x 40
½" BSP
51
SAE (3000) 1 ½"
½"-13 UNC
32
SAE (3000) 1 1∕4"
7
∕16"-14 UNC
F UNC (ISO)
only secondary pump
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∕8"-14 UNF
PVV101-3-63 / -80 / -100 (FS / US)
Flange
190
7
ØA
B
ØC
D
FS (SAE)
51
SAE (3000) 2"
M12 x 45
32
SAE (3000) 1 ∕4"
M10 x 40
US (SAE)
51
SAE (3000) 2"
½"-13 UNC
32
SAE (3000) 1 1∕4"
7
∕16"-14 UNC
1
1
E
ØF
G
H
J
K
∕2" BSP
32
60
305
35
10
∕8"-14
UNF
31.75
58
303
34.5
6.35
7
PVV101-3-63 / -80 / -100 (B)
3
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Combined pumps
Primary Pump PVV101-3- ... F
Secondary Pump
A
B
C
D
E
F
PVV101-05- ... F / US
283
113
68
338
46
35
PVV101-05- ... F-GR2
288
120
68
350
46
35
Secondary Pump
A
B
C
D
E
F
PVV100-1- ... F /
PVV101-1- ... F
46
265
35
68
285
159
Secondary Pump
A
B
C
D
E
F
PVV100-2- ... F /
PVV101-2- ... F
46
295
35
68
300
220
PVV100-3- ... F /
PVV101-3- ... F
46
315
35
68
315
245
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Secondary Pump
192
A
C
A
B
C
D
Gear Pump size 1
198
90
68
288
Gear Pump size 2
198
90
68
288
Gear Pump size 3
198
90
68
288
B
D
E
E
dependent on selected
gear pump