PC360 | PC360‑High‑Pressure‑Holding‑Valve | Holding Valve Compatible with Komatsu

1. Product Overview & Wholesale Price Range

PC360 High‑Pressure Holding Valve is a key pressure‑retaining component for excavator hydraulic circuit. It maintains stable working pressure for boom and arm circuit. Common replacement scenarios include boom sinking, arm slow action, pressure‑holding failure and internal hydraulic leakage fault.

• Factory Wholesale Price: $115 – $178 USD Direct factory price for excavator repair workshops
• Material Specifications: High‑strength alloy valve body, precision‑machined valve spool, wear‑resistant spring assembly, good pressure‑resistance and sealing performance, long working service life
• MPN / Part Parameter:PC360‑High‑Pressure‑Holding‑Valve
• Fit Application: Hydraulic pressure‑holding circuit compatible with Komatsu PC360 excavator
• MOQ & Bulk Discount: 1 Unit, favorable price for bulk maintenance orders
• Lead Time: 1‑3 working days, sufficient stock supports global logistics shipment
• Warranty: 12‑month replacement warranty, pressure‑holding and sealing test finished before shipment

2. Application Scope

This high‑pressure holding valve is customized for PC360 excavator hydraulic overhaul:

• Hydraulic Circuit Overhaul: Direct replacement for original damaged high‑pressure holding valve assembly.
• Hydraulic Fault Repair: Fix boom sinking, arm slow movement, pressure‑retaining failure and internal leakage malfunctions.
• Repair Workshop Usage: Precise mounting dimension, simple installation, stable pressure‑holding performance.
• Overseas Parts Reseller: Stable stock quantity, complete QC documents to support cross‑border excavator spare‑part business.

3. Common Holding Valve Failure Troubleshooting

• Fault 1: Excavator Boom Sinking Obviously
  Cause: Spool wear, spring fatigue, hydraulic oil mixed with impurity particles.
  Solution: Install brand‑new holding valve, flush hydraulic circuit and replace filter element.
• Fault 2: Arm Action Slow & Response Delay
  Cause: Internal component abrasion, dirt stuck inside valve body, spring deformation.
  Solution: Replace complete holding valve assembly, clean the whole hydraulic oil loop.
• Fault 3: Poor Pressure‑Holding Performance
  Cause: Sealing surface scratch, oil sludge and metal debris enter valve interior.
  Solution: Fit new high‑pressure holding valve, thoroughly clean hydraulic tank and oil passages.
• Fault 4: Internal Leakage Inside Valve Assembly
  Cause: Valve core wear, long‑term high‑pressure impact damage to sealing face.
  Solution: Replace holding valve, check wear condition of matched hydraulic pipelines.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I verify this holding valve fits PC360 excavator?
A: Confirm machine model is PC360, check thread size and installation dimension parameters before placing orders.

Q2: What quality inspection will be carried out before shipment?
A: Each high‑pressure holding valve completes pressure‑holding and sealing performance testing before delivery.

Q3: What points need attention during installation?
A: Clean valve body and mounting surface completely, avoid dirt entering hydraulic circuit, test pressure‑retaining performance after installation.