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DH220-5 Cushion Swing Valve: Working Principle & Adjustment Tips | Longerfa Hydraulic Expert Guide
How the DH220-5 Cushion Swing Valve Works
The DH220-5 Cushion Swing Valve, developed by Longerfa Hydraulic, is a high-performance Hydraulic Control component widely used in construction machinery, metallurgical equipment, and automated production lines. Its primary function is to smoothly control the rotary motion of hydraulic actuators while minimizing shock and vibration.
This valve features a pilot-operated cushioning adjustment mechanism, which precisely regulates the rotation speed of hydraulic motors or cylinders by adjusting spool opening and throttling resistance. When sudden pressure changes occur in the system, the DH220-5 automatically modulates flow to prevent damage caused by hydraulic shock, thereby extending equipment lifespan and improving operational stability.
Adjustment Tips for the DH220-5 Cushion Swing Valve
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Cushioning Intensity Adjustment
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Rotate the adjustment screw to change the throttling orifice size—clockwise to increase cushioning, counterclockwise to reduce it.
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Initial adjustments should be made under no-load conditions, followed by fine-tuning based on actual load requirements.
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Optimizing Swing Speed
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If the hydraulic actuator rotates too quickly, increase damping; if it’s too slow, reduce damping for faster response.
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Regular Maintenance Checks
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Inspect the valve body for leaks and ensure seals are intact.
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Periodically clean the spool and throttling ports to prevent contamination-related jamming.
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Why Choose Longerfa’s DH220-5 Cushion Swing Valve?
✅ Precision Cushioning – Minimizes mechanical shock for smoother operation.
✅ Durable Construction – High-grade materials ensure reliability in harsh environments.
✅ Easy Adjustment – User-friendly design for quick performance optimization.
✅ Wide Compatibility – Ideal for diverse Hydraulic Systems in industrial, mobile, and heavy machinery applications.
About Longerfa Hydraulic:
As a leading innovator in hydraulic solutions, Longerfa specializes in high-efficiency valves, pumps, and customized hydraulic systems. Our DH220-5 Cushion Swing Valve reflects our commitment to performance, durability, and cutting-edge engineering.
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