Sauer axial piston pump PV20, PV21, PV22, PV23, PV24, PV25, PV26, PV27
Product Description
Hydraulic Sauer-Sundstrand axial piston pump PV20, PV21, PV22, PV23, PV24, PV25, PV26, PV27
Closed circuit
Series 20
Size: 20, 21, 22, 23, 24, 25, 26, 27
Nominal pressure 210 bars, Maximum pressure 350 bars.
The Sauer PV axial piston variable displacement pumps, Series 20, are of swash plate construction with variable flow capability suitable for hydrostatic transmissions with closed circuit. The flow rate is proportional to the pumps driven speed displacement, which, in turn, is determined by the swash plate angle. The latter is infinitely adjustable between zero and maximum displacement. Flow direction is reserved by titling the swash plate to the opposite side of the neutral or zero displacement position. These units and parts are fit, form and function replacements for Sauer-Sundstrand series 20 components.
- Suitable for a variety of applications
- Multiple displacements and options available
- 8 different frame sizes
- Engineered to provide a long service life and reliability
- Fixed displacement motor can be operated in either direction of rotation
- Multiple drive shaft options and control options
- Heavy duty bearings and shafts
- Easily serviceable
- Replacement parts also available
- Direct replacements for Sauer-Sundstrand
Product Parameters
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
| Size |
Dimension |
Sauer-Sundstrand PV pump |
| PV20 |
PV21 |
PV22 |
PV23 |
PV24 |
PV25 |
PV26 |
PV27 |
| Max. displacement |
cm3 |
33,3 |
51,6 |
69,8 |
89,0 |
118,7 |
165,8 |
227,3 |
333,7 |
| Max. flow |
dm3min-1 |
119,5 |
159,9 |
196,1 |
230,5 |
278,9 |
348,1 |
429,59 |
557,2 |
| 4 |
6 |
4 |
1 |
4 |
8 |
8 |
| Charge pump |
cm3 |
12,3 |
12,3 |
18,03 |
18,03 |
18,8 |
32,8 |
32,8 |
65,5 |
| Max. pressure |
MPa |
35 |
| Nominal pressure |
MPa |
21 |
| Max. pressure of control |
MPa |
3,5 |
| Charge pressure |
MPa |
0,8 - 2,0 |
| Max. pressure in case |
MPa |
0,25 continuous 0,5 intermittent |
| Maximum speed + |
min-1 |
3590 |
3100 |
2810 |
2590 |
2350 |
2100 |
1890 |
1670 |
| Minimum speed |
min-1 |
500 |
| Nominal speed |
min-1 |
1500 |
Kinematic viscosity range of working fluid
- starting
- operating
- optimum |
|
1000
12 - 600
25 - 35 |
| mm2s-1 |
| Kind of working fluid |
|
mineral oil |
| Operating temperature |
oC |
- 40 to + 50 |
| Max. temperature of working fluid in tank |
oC |
80 |
| Purity of working fluid |
µm |
10 |
| Direction of shaft rotation |
|
clockwise or counter clockwise |
| Maximum swash plate angle |
o |
± 18 o |
| Weight |
kg |
45 |
55 |
63 |
78 |
124 |
164 |
212 |
270 |
Detailed Photos
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