PC110‑7 No‑OEM‑PC110‑7‑Main‑Relief‑Valve Main Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC110‑7 Main Relief Valve (Part # No‑OEM‑PC110‑7‑Main‑Relief‑Valve) is the core pressure‑limiting component of PC110‑7 excavator hydraulic system. It sets the maximum working pressure of the whole machine, opens and releases pressure when system overload occurs, effectively protects hydraulic pump, main control valve, oil cylinder and other precision hydraulic parts from over‑pressure damage.

• Factory Wholesale Price: $125 – $230 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 PC110‑7 series excavator hydraulic control system and engineering machinery overhaul jobs:

• Hydraulic Overhaul: Direct replacement for worn, stuck or pressure‑drifted original main relief valve.
• System Over‑pressure Protection: Limit maximum working pressure, avoid component damage caused by system overload.
• Repair Workshop: Excellent dimensional compatibility, convenient installation, reliable pressure‑limiting performance.
• Overseas Parts Dealer: Stable stock supply, complete QC inspection records support cross‑border spare‑parts trading.

3. Common Main Relief Valve Failure Troubleshooting

• Fault 1: Whole Machine Action Weak, Cannot Reach Rated Working Pressure
  Cause: Valve spool wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new No‑OEM‑PC110‑7‑Main‑Relief‑Valve main relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: System Pressure Too High, Hydraulic Fittings Easy To Break Down
  Cause: Valve spool jamming, relief pressure setting deviation.
  Solution: Fit PC110‑7 No‑OEM‑PC110‑7‑Main‑Relief‑Valve main relief valve, adjust pressure value according to machine specification after assembly.
• Fault 3: Abnormal Hydraulic Howling Noise Under Load Condition
  Cause: Internal component abrasion, unstable pressure‑relief performance.
  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 main relief valve fits my excavator?
A: Please verify machine model, mounting dimension and system pressure parameter, provide part number No‑OEM‑PC110‑7‑Main‑Relief‑Valve for fast compatibility check.

Q2: What quality tests are done before shipment?
A: Each PC110‑7 main relief valve passes hydraulic pressure test to guarantee stable pressure‑limiting performance.

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