SDLG500 | 20‑Hole Stop Valve | Hydraulic Shut‑off Valve Compatible with SDLG

1. Product Overview & Wholesale Price Range

SDLG500 20‑Hole Stop Valve is critical hydraulic on‑off control component for construction machinery. It controls hydraulic oil circuit connection and cut‑off. Common replacement scenarios include oil circuit cannot close, valve block jamming, internal leakage, oil channel blockage and poor sealing performance.

• Factory Wholesale Price: $122 – $186 USD Direct factory price for machinery repair workshops
• Material Specifications: High‑strength cast valve body, precision‑machined 20‑hole oil‑passage structure, outstanding pressure‑resistance and sealing performance, anti‑jamming, long working service life
• Fit Application: Hydraulic circuit compatible with SDLG500 machinery
• MOQ & Bulk Discount: 1 Unit, preferential quotation for bulk maintenance orders
• Lead Time: 1‑3 working days, sufficient stock supports worldwide logistics shipment
• Warranty: 12‑month replacement warranty, pressure‑resistance and sealing testing finished before shipment

2. Application Scope

This 20‑hole stop valve is specially produced for SDLG500 hydraulic system maintenance & overhaul:

• Hydraulic Circuit Overhaul: Direct replacement for original damaged 20‑hole stop valve assembly.
• Hydraulic Fault Repair: Fix oil‑circuit cut‑off failure, valve block jamming, internal leakage and oil‑passage blockage faults.
• Repair Workshop Usage: Exact 20‑hole dimension matching, convenient installation, stable shut‑off performance.
• Overseas Parts Reseller: Stable inventory, complete QC records to support cross‑border construction machinery spare‑part trading.

3. Common Stop Valve Failure Troubleshooting

• Fault 1: Hydraulic Oil Circuit Cannot Be Cut Off
  Cause: Internal spool jam, sealing surface wear, hydraulic oil impurity contamination.
  Solution: Install brand‑new 20‑hole stop valve, flush hydraulic circuit and replace hydraulic filter element.
• Fault 2: Stop Valve Block Jamming
  Cause: Foreign particles stuck inside oil‑passage, internal component deformation, oil dirt accumulation.
  Solution: Replace complete stop valve assembly, clean whole hydraulic oil loop.
• Fault 3: Internal Leakage of Stop Valve Assembly
  Cause: Sealing face scratch, seal ring aging, long‑term high‑pressure impact damage.
  Solution: Fit new 20‑hole stop valve, inspect connected hydraulic pipeline wear status.
• Fault 4: Hydraulic Oil Passage Blockage
  Cause: Metal debris and dirt accumulated inside 20‑hole oil channels.
  Solution: Replace full stop valve assembly, clean hydraulic tank and filter parts.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How can I confirm this 20‑hole stop valve fits my SDLG500 machine?
A: Confirm your device model is SDLG500, verify 20‑hole mounting hole position and dimension parameters before placing orders.

Q2: What quality testing will be carried out before delivery?
A: Each 20‑hole stop valve completes pressure‑resistance and sealing performance testing before shipment.

Q3: What points should be noted during installation?
A: Keep mounting surface and 20 oil‑holes clean, prevent dirt entering valve interior, test hydraulic circuit shut‑off function after installation.