EC360 No‑OEM‑EC360‑A Main Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The EC360 Main Relief Valve (Part # No‑OEM‑EC360‑A) serves as the main overflow valve for excavator main hydraulic system. It sets the maximum working pressure of the whole hydraulic system, absorbs pressure shock and safeguards main pump and all connected hydraulic actuators.

• Factory Wholesale Price: $118 – $215 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision grinding, anti‑wear property, stable pressure‑holding performance, extended 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 EC360 excavator main hydraulic system and engineering machinery overhaul jobs:

• Hydraulic Overhaul: Direct replacement for worn, stuck or malfunctioning original main relief valve.
• System Pressure Protection: Restrict maximum hydraulic pressure, protect main pump and related hydraulic parts from over‑pressure failure.
• Repair Workshop: Excellent dimensional compatibility, easy installation, stable pressure‑regulating 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: Excavator Overall Action Weak, Low Hydraulic Working Pressure
  Cause: Valve spool wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new No‑OEM‑EC360‑A main relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: Hydraulic System Over‑pressure, Risk Of Component Damage
  Cause: Valve spool jamming, pressure‑control function failure.
  Solution: Fit EC360 No‑OEM‑EC360‑A main relief valve, calibrate system hydraulic pressure to standard value after assembly.
• Fault 3: Obvious Hydraulic Noise & Vibration During Operation
  Cause: Internal component abrasion, unstable overflow pressure.
  Solution: Replace complete valve assembly, inspect hydraulic oil cleanliness.
• Fault 4: Hydraulic Oil Leakage At Thread Connection Position
  Cause: Sealing ring aging, thread 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, thread size and system pressure parameter, provide part number No‑OEM‑EC360‑A for fast compatibility check.

Q2: What quality tests are done before shipment?
A: Each EC360 No‑OEM‑EC360‑A main relief valve goes through full hydraulic pressure test to ensure stable pressure‑limiting performance.

Q3: What should you pay attention to during installation?
A: Keep mounting surface clean to prevent dirt entering valve interior, recalibrate whole‑machine hydraulic pressure after installation work.