Walvoil DLS control valves

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תיאור מוצר

Walvoil DLS pre-compased load-sensing sectional control valves They are for systems with fixed displacements pumps (open centre versione) or variable displacement pumps (closed centre version) with Load Sensing signal on each working section to pump flow control valve control.
  • Load indipendent flow control.
  • Load Sensing signal connections on every working section.
 
 
 
 
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Nominal flow rating  (with 14 bar stand-by) On inlet port P 75 l/min
On ports A and B 65 l/min
Operating pressure 315 bar
Back pressure (max) On outlet port T 25 bar
Internal leakage A(B)→T ∆p=100 bar 3 cm3/min
Fluid Mineral oil
Fluid temperature 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
Level of contamination -/19/16 - ISO 4406
Ambient temperature With mechanical devices from -40° to 60°C
With pneumatic and hydraulic devices from -30° to 60°C
With electric devices from -20° to 50°C
Tie rods tightening torque 30 Nm
Walvoil DLS pre-compased load-sensing sectional control valves They are for systems with fixed displacements pumps (open centre versione) or variable displacement pumps (closed centre version) with Load Sensing signal on each working section to pump flow control valve control.