Universal Excavator Check Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The Check Valve is a one‑way hydraulic spare part for excavator hydraulic circuits. It blocks reverse oil flow, maintains system pressure and protects other hydraulic components. Common replacement symptoms include system pressure drop, hydraulic oil backflow, weak equipment action and abnormal hydraulic component wear.

• Factory Wholesale Price: $96 – $165 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel valve body, precision‑ground spool assembly, reliable sealing structure, good pressure‑resistance, outstanding wear‑resistance and long service life
• MOQ & Bulk Discount: 1 Unit, favorable quotation for large‑volume maintenance orders
• Lead Time: 1‑3 working days, sufficient stock supports worldwide logistics delivery
• Warranty: 12‑month replacement warranty, full hydraulic performance testing completed before shipment

2. Application Scope

This Check Valve fits multiple excavator hydraulic maintenance and overhaul scenarios:

• Hydraulic Circuit Overhaul: Direct replacement for worn, stuck or damaged original check valve assembly.
• Hydraulic Fault Repair: Resolve hydraulic oil backflow, system pressure loss and weak equipment working‑action failures.
• Repair Workshop: Standard dimension, easy installation, stable one‑way flow control performance.
• Overseas Parts Dealer: Stable inventory supply, complete QC records support cross‑border spare‑parts trading.

3. Common Check Valve Failure Troubleshooting

• Fault 1: Hydraulic Oil Backflow & System Pressure Drop
  Cause: Internal valve‑core wear, seal damage, impurity jamming valve sealing face.
  Solution: Install brand‑new Check Valve, flush hydraulic circuit and replace hydraulic filter element.
• Fault 2: Weak Working Action & Slow Movement Speed
  Cause: Sealing face abrasion, spring fatigue, internal leakage.
  Solution: Fit new Check Valve, thoroughly clean the whole hydraulic oil circuit.
• Fault 3: Abnormal Hydraulic Noise & Vibration
  Cause: Internal parts wear, oil passages blocked by hydraulic contamination.
  Solution: Replace complete check valve assembly, check hydraulic oil cleanliness.
• Fault 4: Oil Leakage At Check Valve Mounting Position
  Cause: Seal ring aging, mating surface scratch damage.
  Solution: Replace full check valve assembly or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this check valve fits my excavator?
A: Please confirm machine model and installation dimension for fast compatibility verification.

Q2: What quality inspection will be carried out before goods dispatch?
A: Every check valve goes through strict one‑way sealing hydraulic test to guarantee stable performance.

Q3: What points need attention while installing check valve?
A: Keep mounting hole and sealing face clean, confirm correct oil flow direction, test hydraulic pressure performance after installation.