19G016A No‑OEM‑19G016A Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The 19G016A Relief Valve (Part # No‑OEM‑19G016A) is hydraulic pressure control part, used to limit and stabilize system pressure, protect hydraulic pump and other key hydraulic components of engineering machinery.

• Factory Wholesale Price: $90 – $170 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision‑machined sealing surface, excellent pressure‑resistance and anti‑wear performance
• MOQ & Bulk Discount: 1 Unit, favorable offer for large‑volume hydraulic repair orders
• Lead Time: 1‑3 working days, sufficient stock supports worldwide logistics delivery
• Warranty: 12‑month replacement warranty, pressure and leakage test completed before packing

2. Application Scope

Specially produced for excavator and construction machinery hydraulic system:

• Hydraulic System Repair: Direct replacement for damaged, stuck or leaking original relief valve.
• System Pressure Protection: Prevent over‑pressure damage to core hydraulic components.
• Repair Workshop: Standard mounting dimension, easy installation, consistent pressure control effect.
• Overseas Parts Dealer: Stable supply capacity, complete QC documents support cross‑border spare‑parts resale business.

3. Common Relief Valve Failure Troubleshooting

• Fault 1: Hydraulic System Over‑pressure
  Cause: Spool jammed by dirt, internal spring fatigue failure.
  Solution: Install brand‑new relief valve, clean hydraulic circuit and replace filter element.
• Fault 2: Fluctuating System Pressure
  Cause: Sealing surface wear, internal parts abrasion.
  Solution: Replace complete relief valve, flush full hydraulic oil circuit.
• Fault 3: Internal Oil Leakage
  Cause: Valve core sealing surface scratch and damage.
  Solution: Fit new relief valve, carry out system pressure test after installation.
• Fault 4: Hydraulic Vibration & Abnormal Noise
  Cause: Spring failure, frequent pressure shock impact.
  Solution: Replace relief valve and inspect whole hydraulic system condition.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this relief valve fits my machine?
A: Please check installation dimension, thread specification and working pressure parameter, send machine info for fast compatibility confirmation.

Q2: What quality tests are carried out before shipment?
A: Each relief valve undergoes pressure regulation test and leakage test to guarantee stable hydraulic working performance.

Q3: What should be noticed during installation?
A: Keep hydraulic oil clean, avoid impurities entering valve cavity, adjust system pressure strictly according to equipment requirements after mounting.