PC200‑6 No‑OEM‑PC200‑6‑Auxiliary‑Relief‑Valve Auxiliary Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC200‑6 Auxiliary Relief Valve (Part # No‑OEM‑PC200‑6‑Auxiliary‑Relief‑Valve) is a key secondary pressure‑limiting component for PC200‑6 excavator main control valve. It regulates auxiliary circuit pressure and protects hydraulic components from over‑pressure damage. Typical replacement symptoms include slow working actions, abnormal overflow noise, unstable auxiliary pressure and weak partial function output.

• Factory Wholesale Price: $128 – $225 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑alloy precision‑ground spool, stable pressure‑regulating performance, excellent wear‑resistance and sealing property, long service cycle
• MOQ & Bulk Discount: 1 Unit, favorable price for large‑volume maintenance orders
• Lead Time: 1‑3 working days, adequate stock supports global logistics delivery
• Warranty: 12‑month replacement warranty, full hydraulic pressure testing finished before dispatch

2. Application Scope

Perfectly fits PC200‑6 excavator main control valve hydraulic circuit and construction machinery overhaul works:

• Hydraulic Overhaul: Direct replacement for worn, stuck or damaged original auxiliary relief valve assembly.
• Pressure‑Fault Repair: Fix slow movement speed, auxiliary pressure overflow and hydraulic noise issues.
• Repair Workshop: Accurate dimension match, simple installation, stable auxiliary pressure‑limiting performance.
• Overseas Parts Dealer: Stable inventory supply, complete QC records support cross‑border spare‑parts trading.

3. Common Auxiliary Relief Valve Failure Troubleshooting

• Fault 1: Excavator Partial Working Actions Run Very Slowly
  Cause: Internal spool wear, spring fatigue, dirt impurity trapped inside valve clearance.
  Solution: Install brand‑new No‑OEM‑PC200‑6‑Auxiliary‑Relief‑Valve Auxiliary Relief Valve, flush hydraulic circuit and replace hydraulic filter.
• Fault 2: Obvious Hydraulic Overflow Noise During Operation
  Cause: Valve core abrasion, pressure‑regulating spring performance degradation.
  Solution: Fit PC200‑6 No‑OEM‑PC200‑6‑Auxiliary‑Relief‑Valve Auxiliary Relief Valve, thoroughly clean whole hydraulic oil loop.
• Fault 3: Auxiliary Circuit Pressure Unstable, Function Intermittent
  Cause: Internal component wear, oil passages blocked by hydraulic contamination.
  Solution: Replace complete auxiliary relief valve assembly, inspect hydraulic oil cleanliness status.
• Fault 4: Oil Leakage On Auxiliary Relief Valve Mounting Surface
  Cause: Seal ring aging, mating surface scratch damage.
  Solution: Change full auxiliary relief valve assembly or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this auxiliary relief valve fits my excavator?
A: Please confirm excavator model, installation dimension and pressure parameters, provide No‑OEM‑PC200‑6‑Auxiliary‑Relief‑Valve for fast compatibility verification.

Q2: What quality inspection will be carried out before goods dispatch?
A: Every PC200‑6 Auxiliary Relief Valve goes through strict hydraulic pressure test to guarantee reliable auxiliary pressure‑limiting performance.

Q3: What points need attention while installing auxiliary relief valve?
A: Keep mounting surface and oil ports clean to prevent dirt entering valve interior, test all machine actions and calibrate auxiliary circuit pressure after installation.