PC Series Check Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC Series Check Valve is a key hydraulic one‑way control component for excavator hydraulic circuit. It blocks reverse flow of hydraulic oil, protects hydraulic parts from back‑pressure impact. Common replacement symptoms include pressure backflow, unstable system pressure, slow implement response and premature wear of hydraulic accessories.

• Factory Wholesale Price: $98 – $178 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel body, precision internal spool assembly, sensitive one‑way opening‑closing performance, excellent wear‑resistance and sealing performance, long working 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 matches PC series excavator hydraulic system and construction machinery overhaul projects:

• Hydraulic Overhaul: Direct replacement for worn, stuck or damaged original check valve assembly.
• Hydraulic Fault Repair: Resolve oil backflow, pressure rebound and one‑way control related failures.
• Repair Workshop: Accurate dimension matching, simple installation, stable one‑way sealing 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 & Pressure Rebound
  Cause: Internal spool wear, spring fatigue, dirt trapped inside valve clearance.
  Solution: Install brand‑new PC Series Check Valve, flush hydraulic circuit and replace hydraulic filter.
• Fault 2: System Pressure Unstable, Working Action Jitter
  Cause: Valve core abrasion, internal spring performance degradation.
  Solution: Fit PC Series Check Valve, thoroughly clean the whole hydraulic oil circuit.
• Fault 3: Hydraulic System Overheat & Abnormal Noise
  Cause: Internal component 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 excavator model and installation dimension for fast compatibility verification.

Q2: What quality inspection will be carried out before goods dispatch?
A: Every PC Series Check Valve goes through strict hydraulic test to guarantee reliable one‑way sealing performance.

Q3: What points need attention while installing check valve?
A: Keep mounting surface and oil ports clean to prevent dirt entering valve interior, test oil flow direction and system pressure after installation.