CAT200B No‑OEM‑CAT200B Swing Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The CAT200B Swing Relief Valve (Part # No‑OEM‑CAT200B) is swing relief valve specially for excavator swing hydraulic circuit. It protects swing motor and related pipelines against over‑pressure damage, keeps stable rotation performance of excavator upper structure.

• Factory Wholesale Price: $66 – $135 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision grinding treatment, wear‑resistant, stable pressure output, long service life
• MOQ & Bulk Discount: 1 Unit, competitive price for bulk repair order
• Lead Time: 1‑3 working days, sufficient stock supports global logistics delivery
• Warranty: 12‑month replacement warranty, hydraulic pressure test finished before shipment

2. Application Scope

Designed for excavator swing hydraulic system and engineering machinery repair:

• Hydraulic Repair: Direct replacement for worn, stuck or invalid original swing relief valve.
• Swing Circuit Protection: Limit pressure of swing motor circuit, protect swing motor and hydraulic pipeline parts.
• Repair Workshop: Good dimensional compatibility, convenient installation, stable pressure‑limiting performance.
• Overseas Parts Dealer: Stable stock supply, complete QC records support cross‑border spare‑parts trading.

3. Common Swing Relief Valve Failure Troubleshooting

• Fault 1: Excavator Swing Slow, Weak Rotation Power
  Cause: Valve core wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new swing relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: Swing Circuit Over‑pressure, Easy To Damage Motor Parts
  Cause: Valve core stuck, pressure control failure.
  Solution: Fit CAT200B swing relief valve, calibrate swing circuit pressure to standard value after assembly.
• Fault 3: Abnormal Hydraulic Noise & Vibration When Rotating
  Cause: Internal component abrasion, unstable overflow pressure.
  Solution: Replace complete valve assembly, check hydraulic oil cleanliness.
• Fault 4: Oil Leakage At Valve Joint Position
  Cause: Sealing ring aging, thread surface scratch damage.
  Solution: Change whole valve 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 machine?
A: Please check machine model, thread dimension and pressure parameter, provide part number for fast compatibility verification.

Q2: What quality tests are carried out before shipment?
A: Each CAT200B swing relief valve will go through hydraulic pressure test to guarantee stable overflow and pressure‑holding performance.

Q3: What should be noticed during installation?
A: Keep mounting area clean, avoid dirt entering valve interior, adjust swing circuit pressure strictly after installation.