KYB No‑OEM‑KYB‑Swing‑Valve Swing Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The KYB Swing Relief Valve (Part # No‑OEM‑KYB‑Swing‑Valve) is the dedicated pressure‑limiting component for excavator KYB swing motor system. It limits swing circuit peak pressure, absorbs swing impact force and protects swing motor and gearbox against overload damage.

• Factory Wholesale Price: $115 – $210 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision grinding, anti‑wear property, stable pressure‑limiting performance, long service cycle
• MOQ & Bulk Discount: 1 Unit, favorable quotation for bulk maintenance orders
• Lead Time: 1‑3 working days, adequate stock supports global logistics shipment
• Warranty: 12‑month replacement warranty, full hydraulic pressure test completed before shipment

2. Application Scope

Perfectly matched for excavator equipped with KYB swing motor hydraulic system and engineering machinery overhaul jobs:

• Hydraulic Overhaul: Direct replacement for worn, stuck or pressure‑drifted original swing relief valve.
• System Pressure Protection: Limit swing circuit overload pressure, buffer rotation impact, protect swing motor and swing gearbox.
• Repair Workshop: Excellent dimensional compatibility, convenient installation, reliable pressure‑control performance.
• Overseas Parts Dealer: Stable stock supply, complete QC inspection records support cross‑border spare‑parts trading.

3. Common Swing Relief Valve Failure Troubleshooting

• Fault 1: Excavator Swing Weak Or Slow Rotation
  Cause: Valve spool wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new No‑OEM‑KYB‑Swing‑Valve swing relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: Swing Impact & Shock When Stopping Rotation
  Cause: Valve spool jamming, pressure setting deviation.
  Solution: Fit KYB No‑OEM‑KYB‑Swing‑Valve swing relief valve, adjust pressure value according to machine specification after assembly.
• Fault 3: Hydraulic Vibration & Abnormal Noise During Swing Operation
  Cause: Internal component abrasion, unstable pressure overflow.
  Solution: Replace complete valve assembly, inspect hydraulic oil cleanliness condition.
• Fault 4: Hydraulic Oil Leakage At Connection Joint
  Cause: Sealing ring aging, joint surface scratch damage.
  Solution: Replace whole valve unit or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this swing relief valve fits my excavator?
A: Please verify machine model, mounting dimension and swing circuit pressure parameter, provide part number No‑OEM‑KYB‑Swing‑Valve for fast compatibility check.

Q2: What quality tests are done before shipment?
A: Each KYB swing relief valve passes hydraulic overflow pressure test to guarantee stable working performance.

Q3: What should you pay attention to during installation?
A: Keep mounting surface clean to prevent dirt entering valve interior, calibrate swing pressure and bleed air from hydraulic circuit after installation.