Walvoil SD sectional control valve
Walvoil SD sectional control valve
Walvoil SD sectional control valve
Simple, compact and heavy duty designed sectional valve from 1 to 12 sections for open and closed centre hydraulic systems.
- Fitted with a main pressure relief valve and a load check valve on every working section.
- Available with parallel or series circuit.
- Optional carry-over port.
- A wide variety of service ports and circuit valves.
- Available manual, pneumatic, hydraulic, electro-hydraulic and remote with flexible cables spool control kits.
- Diameter 25 mm (0,98 in.) interchangeable spools.
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|
Nominal flow rating |
|
240 l/min |
|
Operating pressure |
Parallel circuit |
315 bar (4600 psi) |
|
Series circuit |
210 bar (3050 psi) |
|
|
Max back pressure |
On outlet T |
25 bar (360 psi) |
|
Internal leakage A(B)→T |
∆p=100 bar (1450 psi) fluid and valve 40°C |
4 cm3/min (0,24 in3/min) |
|
Fluid |
|
Mineral base oil |
|
Fluid temperature |
with NBR seals |
from -20° to 80°C |
|
with FPM (VITON) seals |
from -20° to 100°C |
|
|
Viscosity |
Working range |
from 15 to 75 mm2/s |
|
Min |
12 mm2/s |
|
|
Max |
400 mm2/s |
|
|
Max level of contamination |
|
19/16 - ISO 4406 |
|
Ambient temperature for working conditions |
|
from -40° to 60°C |
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