Rexroth Series | Auxiliary Relief Valve | Hydraulic Pressure Control Valve Compatible with Rexroth

1. Product Overview & Wholesale Price Range

Rexroth Series Auxiliary Relief Valve is a core hydraulic pressure‑control spare‑part for hydraulic secondary circuit. It undertakes pressure limiting and protection for auxiliary hydraulic loop. Common replacement scenarios include sub‑circuit pressure failure, hydraulic jitter, internal leakage, valve spool abrasion and unstable auxiliary pressure.

• Factory Wholesale Price: $135 – $205 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel valve body, precision‑ground spool assembly, excellent pressure‑resistance and sealing performance, stable pressure‑regulating output, long service cycle
• Fit Application: Auxiliary hydraulic circuit compatible with Rexroth series assemblies
• 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 auxiliary relief valve is designed for Rexroth‑type hydraulic auxiliary circuit maintenance & overhaul:

• Sub‑Circuit Overhaul: Direct replacement for original damaged auxiliary relief valve assembly.
• Hydraulic Fault Repair: Resolve auxiliary‑loop pressure anomaly, hydraulic jitter, internal leakage and pressure‑loss faults.
• Repair Workshop Usage: Precise dimension matching, easy installation, stable pressure‑regulating performance.
• Overseas Parts Reseller: Stable inventory, complete QC records to support cross‑border hydraulic component trading.

3. Common Auxiliary Relief Valve Failure Troubleshooting

• Fault 1: Auxiliary Circuit Pressure Abnormality
  Cause: Internal spool wear, pressure‑regulating spring fatigue, hydraulic oil impurity contamination.
  Solution: Install brand‑new auxiliary relief valve, flush hydraulic circuit and replace hydraulic filter element.
• Fault 2: Hydraulic Jitter & Unstable Action
  Cause: Spring damage, sealing surface abrasion, pressure oscillation of auxiliary loop.
  Solution: Replace complete auxiliary relief valve assembly, inspect hydraulic oil cleanliness.
• Fault 3: Internal Leakage inside Auxiliary Valve Assembly
  Cause: Spool scratch, seal aging, long‑term high‑pressure impact damage.
  Solution: Fit new auxiliary relief valve, inspect main control valve internal wear condition.
• Fault 4: Abnormal Hydraulic System Noise
  Cause: Internal component fatigue, foreign particles trapped inside valve chamber.
  Solution: Replace full auxiliary relief valve assembly, clean the whole hydraulic oil loop.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How to confirm this auxiliary relief valve fits my hydraulic unit?
A: Confirm your hydraulic set belongs to Rexroth series, check valve dimension and thread parameters before placing orders.

Q2: What quality test will be done before delivery?
A: Each auxiliary relief valve completes pressure‑resistance and sealing performance testing before shipment.

Q3: What should pay attention to during installation?
A: Keep mounting surface and oil ports clean, avoid dirt entering valve interior, test auxiliary‑loop hydraulic pressure after installation.