PC200‑6 No‑OEM‑PC200‑6‑Quality‑Unloading‑Valve Unloading Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC200‑6 Unloading Valve (Part # No‑OEM‑PC200‑6‑Quality‑Unloading‑Valve) is a core pressure regulating part for PC200‑6 excavator hydraulic circuit. It is responsible for system pressure stabilization and pressure unloading. Common replacement symptoms include unstable hydraulic pressure, poor digging power, machine shaking and abnormal hydraulic knocking noise.

• Factory Wholesale Price: $92 – $172 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑alloy precision‑machined spool, sensitive pressure response, excellent wear‑resistance and sealing performance, 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 matches PC200‑6 excavator hydraulic system and construction machinery overhaul projects:

• Hydraulic Overhaul: Direct replacement for worn, stuck or damaged original unloading valve assembly.
• Hydraulic Fault Repair: Solve hydraulic pressure fluctuation, insufficient digging force and hydraulic abnormal noise troubles.
• Repair Workshop: Precise dimension match, easy installation, stable pressure regulating performance.
• Overseas Parts Dealer: Reliable inventory supply, complete QC records support cross‑border spare‑parts trading.

3. Common Unloading Valve Failure Troubleshooting

• Fault 1: Hydraulic Pressure Fluctuates Violently
  Cause: Internal spool wear, spring fatigue, dirt impurity trapped inside valve clearance.
  Solution: Install brand‑new No‑OEM‑PC200‑6‑Quality‑Unloading‑Valve Unloading Valve, flush hydraulic circuit and replace hydraulic filter.
• Fault 2: Digging Force Is Insufficient
  Cause: Valve core abrasion, pressure regulating spring performance degradation.
  Solution: Fit PC200‑6 No‑OEM‑PC200‑6‑Quality‑Unloading‑Valve Unloading Valve, thoroughly clean whole hydraulic oil loop.
• Fault 3: Hydraulic System Produces Abnormal Noise
  Cause: Internal component wear, oil passages blocked by hydraulic contamination.
  Solution: Replace complete unloading valve assembly, inspect hydraulic oil cleanliness status.
• Fault 4: Oil Leakage On Unloading Valve Mounting Surface
  Cause: Seal ring aging, mating surface scratch damage.
  Solution: Change full unloading valve assembly or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this unloading valve fits my excavator?
A: Please confirm excavator model, installation dimension and technical parameters, provide No‑OEM‑PC200‑6‑Quality‑Unloading‑Valve for fast compatibility verification.

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

Q3: What points need attention while installing unloading valve?
A: Keep mounting surface and oil ports clean to prevent dirt entering valve interior, test machine pressure status after installation and check working efficiency.