Walvoil DPX sectional valve
Walvoil DPX open/closed center post-pressure compensated sectional valves.
- Designed specifically for mobile applications
- Provides exceptional controllability, efficiency and flexibility for applications requiring up to 160 l/min.
- Adds to the standard Load Sensing valve the benefit of Flow Sharing technology.
- The patented compensator maintains the margin pressure ad a costant pressure drops across the spool metering area.
| Nominal flow rating |
Inlet port eith compensator, stand-by (margin pressure) 14 bar |
120 l/min |
| Working ports, stand-by (margin pressure) 14 bar |
90 l/min |
| Max pressure |
Inlet port P |
300 bar (std)380 bar (HP) |
| Working ports A and B |
300 bar (std)420 bar (HP) |
| Back pressure (max) on outlet port T |
With mechanical devices |
10 bar |
| With hydraulic, pneumatic, electric deviced |
30 bar |
| Standard internal leakage A(B)→T |
∆p=100 bar |
max 9 cm3/min |
| With port valves, ∆p=100 bar |
max 14 cm3/min |
| Fluid |
|
Mineral oil |
| Fluid temperature range |
With seals NBR |
from -20° to 80°C |
| With seals FPM |
from -20° to 100°C |
| Viscosity |
Operating range |
from 15 to 75 mm2/s |
| Min |
12 mm2/s |
| Max |
400 mm2/s |
| Contamination level |
|
-/18/15 - ISO 4406 |
| Environmental temperature for working conditions |
With mechanical devices |
from -40° to 60°C |
| With hydraulic, pneumatic devices |
from -30° to 60°C |
| With electric, electrohydraulic devices |
from -20° to 50°C |
Walvoil DPX open/closed center post-pressure compensated sectional valves.
