14‑Hole Hole‑Center‑Distance‑70 | Cartridge Stop Valve | Hydraulic Block Stop Valve Compatible with SANY Excavator

1. Product Overview & Wholesale Price Range

14‑Hole Cartridge Stop Valve, Hole Center Distance 70 is an important hydraulic block cut‑off component. It realizes hydraulic oil circuit cut‑off and pressure holding function. Common replacement scenarios include oil circuit cannot cut off, pressure holding failure, internal leakage, block valve abnormal noise and spool jamming.

• Factory Wholesale Price: $102 – $162 USD Factory direct price for excavator repair workshops
• Material Specifications: High‑strength alloy valve block, precision‑machined 14‑hole mounting surface, hole center distance 70, wear‑resistant internal components, outstanding pressure‑resistance and sealing performance
• Fit Application: Hydraulic block circuit for matching excavator series
• MOQ & Bulk Discount: 1 Unit, preferential price for bulk maintenance orders
• Lead Time: 1‑3 working days, sufficient inventory supports worldwide logistics delivery
• Warranty: 12‑month replacement warranty, pressure‑resistance and sealing test completed before shipment

2. Application Scope

This 14‑hole cartridge stop valve (hole center distance 70) applies to construction machinery hydraulic block maintenance:

• Hydraulic Block Overhaul: Direct replacement for original damaged 14‑hole stop valve assembly.
• Hydraulic Fault Repair: Resolve oil‑circuit cut‑off failure, pressure‑holding failure, internal leakage and valve block malfunction faults.
• Repair Workshop Usage: Standard 14‑hole mounting dimension, hole center distance 70, easy installation, stable cut‑off performance.
• Overseas Parts Reseller: Adequate stock, complete QC records to support cross‑border excavator spare‑part trading business.

3. Common Cartridge Stop Valve Failure Troubleshooting

• Fault 1: Hydraulic Oil Circuit Cannot Cut‑off
  Cause: Internal spool wear, spring fatigue damage, hydraulic oil mixed with impurities.
  Solution: Install brand‑new 14‑hole cartridge stop valve, flush hydraulic circuit and replace hydraulic filter element.
• Fault 2: Poor Pressure‑Holding Performance
  Cause: Sealing parts abrasion, foreign debris stuck inside valve body, spring deformation.
  Solution: Replace complete stop valve assembly, fully clean the whole hydraulic oil loop.
• Fault 3: Valve Spool Sticking
  Cause: Metal debris and oil sludge enter valve interior, internal component deformation.
  Solution: Fit new cartridge stop valve, thoroughly clean hydraulic tank and oil passages.
• Fault 4: Internal Leakage of Stop Valve Assembly
  Cause: Sealing surface scratch, long‑term high‑pressure impact damage.
  Solution: Replace stop valve, inspect wear condition of matched hydraulic pipelines and valve block.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How can I confirm this stop valve fits my excavator?
A: Confirm mounting parameters: 14‑hole, hole center distance 70 and double‑check dimension before placing orders.

Q2: What quality testing will be done before goods delivery?
A: Each 14‑hole cartridge stop valve completes pressure‑resistance and sealing performance testing before shipment.

Q3: What precautions should be followed during installation?
A: Clean valve block and mounting surface thoroughly, prevent dirt entering hydraulic oil circuit, test cut‑off and pressure‑holding function after installation.