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Rexroth A10VO DR Control Valve Pump Protection

Hydraulic Pump Control Valve
January 20, 2026
Category Connection: Hydraulic Pump Control Valve
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Tags:
#hydraulic pump valve control #pump control valve #proportional control valve
Brief: Need quick answers about practical use? This video highlights the essentials. Watch as we demonstrate the Rexroth A10VO DR Control Valve's pressure shut-off function and pump protection mechanism. You'll see how it rapidly reduces pump displacement to enter a high-pressure standby state and learn about its role as a built-in safety valve to prevent overpressure damage in A10VO series axial piston variable pumps.
Related Product Features:
  • Pressure shut-off control module for Rexroth A10VO series axial piston variable pumps.
  • Rapidly reduces pump displacement to a minimum value when output pressure reaches the set value.
  • Limits maximum output pressure to prevent pump damage from overpressure.
  • Compatible with multiple A10VO pump models including A10VO28, A10VO45, A10VO71, and A10VO100.
  • Standard pressure settings of 280 bar for small displacement pumps and 250 bar for large displacement pumps.
  • Fast pressure cut-off response time of ≤0.15 seconds for quick protection.
  • Operates with mineral hydraulic oil (ISO VG 32/46/68) within viscosity range of 10-1000 mm²/s.
  • Suitable for operating temperatures from -20°C to 80°C with short-term capability up to 100°C.
FAQs:
  • What is the main function of the A10VO DR Control Valve?
    The A10VO DR Control Valve serves as a pressure shut-off control module that protects the pump by rapidly reducing displacement when pressure reaches the set value and limiting maximum output pressure to prevent overpressure damage.
  • Which Rexroth pump models is this DR Control Valve compatible with?
    This control valve is compatible with various A10VO series pumps including A10VO28, A10VO45, A10VO71, A10VO100, and other models with displacements of 18, 28, 45, 60, 71, 74, 100, and 140.
  • What is the pressure setting range for the A10VO DR Control Valve?
    The standard pressure settings are approximately 280 bar for A10VO 31 series (small displacement) and 250 bar for A10VO 52 series (large displacement), with an adjustable range of 160-315 bar that must match the pump's pressure limit.
  • How quickly does the DR Control Valve respond to pressure changes?
    The DR Control Valve has a fast pressure cut-off response time of ≤0.15 seconds, ensuring quick action of the variable displacement mechanism to protect the pump from overpressure conditions.
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