SK200‑3 Auxiliary Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The SK200‑3 Auxiliary Relief Valve is important pressure‑regulating spare part for excavator auxiliary hydraulic circuit. It limits secondary circuit pressure and protects related actuators. Common replacement symptoms include bucket weak force, attachment jitter and auxiliary pressure deviation.

• Factory Wholesale Price: $138 – $224 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel valve body, precision spool and spring assembly, stable pressure‑control performance, excellent wear‑resistance and sealing performance, long‑term service life
• MOQ & Bulk Discount: 1 Unit, favorable price for large‑volume maintenance orders
• Lead Time: 1‑3 working days, sufficient stock supports worldwide logistics delivery
• Warranty: 12‑month replacement warranty, full hydraulic pressure testing completed before shipment

2. Application Scope

Perfectly fits SK200‑3 excavator auxiliary hydraulic system and construction machinery overhaul projects:

• Hydraulic Overhaul: Direct replacement for worn, stuck or damaged original auxiliary relief valve assembly.
• Hydraulic Fault Repair: Resolve bucket weak force, attachment jitter and auxiliary pressure deviation failures.
• Repair Workshop: Accurate dimension matching, simple installation, reliable pressure‑regulating 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: Bucket Weak Force & Auxiliary Attachment Slow Response
  Cause: Internal spool wear, spring fatigue, dirt trapped inside valve clearance.
  Solution: Install brand‑new SK200‑3 Auxiliary Relief Valve, flush hydraulic circuit and replace hydraulic filter.
• Fault 2: Attachment Jitter & Auxiliary Pressure Deviation
  Cause: Valve core abrasion, internal spring performance degradation.
  Solution: Fit SK200‑3 Auxiliary Relief Valve, thoroughly clean the whole hydraulic oil circuit.
• Fault 3: Hydraulic System Overheat & Abnormal Working Noise
  Cause: Internal component wear, oil passages blocked by hydraulic contamination.
  Solution: Replace complete auxiliary relief valve assembly, check hydraulic oil cleanliness.
• Fault 4: Oil Leakage At Auxiliary Relief Valve Mounting Position
  Cause: Seal ring aging, mating surface scratch damage.
  Solution: Replace 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 and installation dimension for fast compatibility verification.

Q2: What quality inspection will be carried out before goods dispatch?
A: Every SK200‑3 Auxiliary Relief Valve goes through strict hydraulic test to guarantee stable pressure‑regulating 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 auxiliary circuit pressure after installation.