Sauer Hydraulic Piston Pump Spv Mixer Motor
Size: PV20, PV21, PV22, PV23, PV24, PV25, PV26, PV27 SPV20, SPV21, SPV22, SPV23, SPV24, SPV25, SPV26, SPV27
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.
Sauer Series Hydraulic Piston Pump Spv Mixer Motor/Hydraulic Pump
Size: PV20, PV21, PV22, PV23, PV24, PV25, PV26, PV27 SPV20, SPV21, SPV22, SPV23, SPV24, SPV25, SPV26, SPV27
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.
Technical Data of Sauer PV Pump
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 |
dm3 min-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 |
|
Maximum 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 |
|||||||
|
Max. speed |
min-1 |
3590 |
3100 |
2810 |
2590 |
2350 |
2100 |
1890 |
1670 |
|
Min. speed |
min-1 |
500 |
|||||||
|
Nominal speed |
min-1 |
1500 |
|||||||
|
Kinematic viscosity range of working fluid - starting - operating - optimum |
Mm 2s-1 |
1000 12 – 600 25 - 35 |
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|
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 |
|||||||
|
Max. swash plate angle |
o |
± 18 |
|||||||
|
Dry weight |
kg |
45 |
55 |
63 |
78 |
124 |
164 |
212 |
270 |
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