Walvoil DPC control valve
Walvoil DPC control valve
Walvoil DPC pre-compansed load-sensing directional control valve
The DPC Series is a family of open/closed center pre pressure compensated sectional valves designed specifically for mobile applications. The DPC series provides exceptional controollability, efficiency and flexibility for applications requiring up to 240 l/min flow rate.
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Nominal flow rating (open center circuit) |
On inlet port with compensator @ stand-by (margin pressure) |
150 l/min @ 9 bar |
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On working ports with compensator @ stand-by (margin pressure) |
100 l/min @ 7 bar |
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On working ports without compensator @ stand-by (margin pressure) |
130 l/min @ 9 bar |
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Max pressure |
Inlet port P |
315 bar (4500 psi) |
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Working ports A and B |
315 bar (4500 psi) |
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Back pressure max |
On outlet port T |
25 bar (363 psi) |
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On drain port L |
2,5 bar (3,63 psi) |
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Standard internal leakage A(B)→T |
∆p=100 bar |
16 cm3/min |
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With port valves, ∆p=100 bar |
21 cm3/min |
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|
Fluid |
|
Mineral oil |
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Fluid temperature range |
With seals NBR |
from -20° to 80°C |
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With seasl FPM |
from -20° to 100°C |
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Viscosity |
Operating range |
from 15 to 75 mm2/s |
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Min |
12 mm2/s |
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Max |
400 mm2/s |
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Contamination level |
|
-/18/15 - ISO 4406 |
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Enviromental temperature for working conditions |
With mechanical devices |
from -40° to 60°C |
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With hydraulic, pneumatic devices |
from -30° to 60°C |
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With electric, electrohydraulic devices |
from -20° to 50°C |
