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RITO Excavator Vavle Assbemly R210 R215 R220 31Q8-17780 31Q817780 Hydraulic Main Relief Valve for Excavator Parts

Hydraulic instability in R210–R220 class machines is often misdiagnosed as pump weakness, while the real issue originates from inconsistent pressure regulation inside the main valve block. 31Q8-17780 valve assembly is developed for Hyundai R210, R215, and R220 excavators, governing internal hydraulic routing and pressure behavior across multiple working circuits.

  • Item NO.:

    31Q8-17780
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

31Q8-17780 Vavle Assbemly

 
Product Specifications

Part Number  31Q8-17780
Part Name Vavle Assbemly
Compatible Brand Hyundai
Applicable Models R210 / R215 / R220
Application Excavator
Material Precision Machined Alloy Steel Body
Product Color Industrial Metallic Finish
Working Temperature -40°C to 120°C
Key Function Hydraulic flow coordination and multi-circuit pressure management
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Hydraulic Circuit Coordination Core Module

Aligns multi-channel oil flow behavior to support synchronized machine movement.

Leak-Free

Load-Adaptive Pressure Redistribution Behavior

Adjusts internal hydraulic response during sudden changes in excavation resistance.

Direct Fitment

Multi-Function Actuation Balance Support

Helps stabilize simultaneous operation of boom, arm, bucket, and travel functions.

Rigorous Testing

Valve Block System Restoration Compatibility

Designed for direct integration into R210 / R215 / R220 hydraulic assemblies.

 
 

 

Excavator Hydraulic Part

FAQ


QWhat symptoms indicate main valve assembly problems?
A: Inconsistent multi-function response, weak combined operation power, or uneven hydraulic speed.
 
QWhy does valve instability affect overall machine performance?
A: Because it controls distribution of hydraulic energy across all working functions.
 
QWhat should be checked before replacement?
A: Hydraulic oil cleanliness, pilot pressure stability, and spool movement condition.
 
QCan this improve digging coordination?
A: Yes, stable flow distribution improves synchronization between all working cylinders.
 
Q: What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?
A:Listed Factory
   Stable&Reliable Quality
   OEM Factory for Chinese Top Excavator Brands
   Supplier to Fortune 500 Companies

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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