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Hydraulic control valve
January 20, 2026
Category Connection: Hydraulic Control Valve
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Tags:
#hydraulic directional control valve #solenoid operated hydraulic valve #hydraulic solenoid directional valve
Brief: Want to know how the YS6-03A hydraulic control valve ensures operational safety in heavy machinery? This video provides a detailed walkthrough of its bidirectional locking mechanism, showcasing how it prevents cylinder drift in crane outriggers, excavators, and aerial platforms through excellent sealing performance and reliable pressure maintenance.
Related Product Features:
  • Provides bidirectional position locking for hydraulic cylinders to prevent sliding or falling under load.
  • Maintains load pressure with excellent sealing performance for long-term stability.
  • Automatically locks the oil circuit when pilot pressure is absent for enhanced safety.
  • Suitable for various construction machinery including cranes, excavators, and aerial platforms.
  • Features a maximum flow rate of 40 L/min and maximum pressure of 350 bar.
  • Built with two parallel hydraulically controlled check valves for reliable operation.
  • Offers a pilot ratio of 3:5:1 for efficient hydraulic control.
  • Manufactured with strict quality control to meet customer-specific technical requirements.
FAQs:
  • What is the primary function of the YS6-03A hydraulic control valve?
    The YS6-03A bidirectional hydraulic lock is designed to achieve bidirectional position locking and load pressure maintenance of hydraulic cylinders in construction machinery, preventing cylinder sliding or falling due to weight, external force, or leakage.
  • In which applications is this hydraulic control valve commonly used?
    It is widely used in truck cranes for outrigger cylinder locking, excavators for boom and outrigger pressure-holding, aerial work platforms for fall prevention, and concrete pump trucks for boom extension stability.
  • What are the key technical parameters of the YS6-03A valve?
    The YS6-03A model features a maximum flow of 40 L/min, maximum pressure of 350 bar, and a pilot ratio of 3:5:1, ensuring reliable performance in demanding hydraulic systems.
  • How does the valve ensure safety during operation?
    It automatically locks the bidirectional oil circuit when there is no pilot pressure, preventing accidental cylinder movement and ensuring system stability and safety during machinery operation.
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