EX55 No‑OEM‑EX55‑2‑Way‑Valve Two‑Way Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The EX55 Two‑Way Relief Valve (Part # No‑OEM‑EX55‑2‑Way‑Valve) is bidirectional pressure control valve for EX55 excavator hydraulic system. It limits pressure in both directions of hydraulic oil circuit, protects hydraulic actuators and main hydraulic components from over‑pressure impact damage.

• Factory Wholesale Price: $92 – $176 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 EX55 excavator hydraulic system and engineering machinery overhaul jobs:

• Hydraulic Overhaul: Direct replacement for worn, stuck or malfunctioning original two‑way relief valve.
• Bidirectional Pressure Protection: Restrict hydraulic pressure of forward and reverse oil circuit, safeguard hydraulic cylinder and related hydraulic parts.
• 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 Two‑Way Relief Valve Failure Troubleshooting

• Fault 1: Excavator Partial Actions Weak, Unbalanced Bidirectional Pressure
  Cause: Valve spool wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new No‑OEM‑EX55‑2‑Way‑Valve two‑way relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: Hydraulic System Over‑pressure, Risk Of Hydraulic Component Damage
  Cause: Valve spool jamming, bidirectional pressure‑control function failure.
  Solution: Fit EX55 No‑OEM‑EX55‑2‑Way‑Valve two‑way relief valve, calibrate hydraulic pressure to standard value after assembly.
• Fault 3: Obvious Hydraulic Noise & Vibration During Machine 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 two‑way relief valve fits my excavator?
A: Please verify machine model, thread size and system pressure parameter, provide part number No‑OEM‑EX55‑2‑Way‑Valve for fast compatibility check.

Q2: What quality tests are done before shipment?
A: Each EX55 No‑OEM‑EX55‑2‑Way‑Valve two‑way relief valve goes through full bidirectional 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 bidirectional hydraulic pressure after installation work.