Catalog | |
Technical Information | VO40 |
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Performance Curves |
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Pressure Drop - Open Center P→T | Pressure Drop - Open Center P→T |
| PSI | Bar |
| Side Inlet to Side Outlet |
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| 217.5 | 15 |
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| P | T |
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| 174.0 | 12 |
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Pressure | 130.5 | 9 |
| 8 Section Valve |
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| 3 Section Valve |
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87.0 | 6 |
| 1 Section Valve |
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| 43.5 | 3 |
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| 0 | 10 | 20 | 30 | 40 | 50 |
| LPM0 | ||||||
| GPM | 2.6 | 5.3 | 7.9 | 10.6 | 13.2 | |
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| Flow |
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| Pressure Drop - P→A |
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| PSI | Bar |
| Top Inlet to Top Outlet |
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| 217.5 | 15 | P |
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| T |
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| 174.0 | 12 |
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Pressure | 130.5 | 9 |
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| 8 Section Valve |
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87.0 | 6 |
| 3 Section Valve |
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| 1 Section Valve |
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| 43.5 | 3 |
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| 0 | 10 | 20 | 30 | 40 | 50 |
| LPM0 | ||||||
| GPM | 2.6 | 5.3 | 7.9 | 10.6 | 13.2 | |
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| Flow |
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| Pressure Drop - A→T |
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| PSI Bar |
| Top Inlet to Cylinder Port |
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| PSI | Bar | ||
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| 217.5 | 15 |
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| 217.5 | 15 |
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| P |
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| 174.0 | 12 |
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| 8 Section Valve |
| 174.0 | 12 | |
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| A | 3 Section Valve |
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| 1 Section Valve |
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Pressure | 130.5 | 9 |
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| Pressure | 130.5 | 9 |
87.0 | 6 |
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| 87.0 | 6 | ||
| 43.5 | 3 |
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| 43.5 | 3 |
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| 0 | 10 | 20 | 30 | 40 | 50 |
| 0 |
| LPM0 | LPM0 | |||||||
| GPM | 2.6 | 5.3 | 7.9 | 10.6 | 13.2 | GPM | ||
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| Flow |
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Cylinder Port to Side Outlet
A
T
8 Section Valve
3 Section Valve
1 Section Valve
10 | 20 | 30 | 40 | 50 |
2.6 | 5.3 | 7.9 | 10.6 | 13.2 |
Flow
NOTE: ISO VG 46 oil @ 50 °C
Environmental Characteristics
The valve can be mounted in all conceivable directions. However, the mounting base should be flat and stable so that the valve is not subjected to strain.
While the
Temperature
Oil temperature, working range: +20°C to 90 °C (68 to 194 °F)*
Filtration
Filtration must be arranged so that Target Contamination Class 20/18/14 according to ISO 4406 is not exceeded. For the pilot circuit, Target Contamination Class 18/16/13 according to ISO 4406 must not be exceeded.
Hydraulic Fluids
Best performance is obtained using
Hydraulic fluids of type HLP (DIN 51524), oil for automatic gearboxes Type A and engine oil type API CD can be used.
Viscosity, working range:
Technical information in this catalog is applicable at an oil viscosity of 30 mm2/s (30 cST) and temperature of 50 °C (122 °F) using nitrile rubber seals.
*Product operating limits are broadly within the above range, but satisfactory operation within the specification may not be accom- plished. Leakage and response will be affected when used at tem- perature extremes and it is up to the user to determine acceptability at these levels.
**Performance efficiency will be reduced if outside the ideal values. These extreme conditions must be evaluated by the user to establish suitability of the product’s performance.
Parker Hannifin Corporation
