Is internal oil pressure bypass across scored valve faces causing your excavator boom to lift at a crawl or stalling your right-circuit tracking travel under load? Scored fluid passages on your port plates let high-pressure fluid bleed off internally into the suction side, dropping pump capacity and making the machine difficult to control. Overhaul your hydraulic distribution loop using the high-precision RITO 311503 right valve plate.
Item NO.:
311503Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSHeavy engineering maintenance centers and industrial parts stockists cannot afford weak volumetric delivery or field seal blowouts after executing a main pump repair. Our premium RITO 311503 port plate features a micro-lapped face to establish a near-perfect fluid seal against the moving cylinder blocks. Invest in our bimetallic repair plates to ensure your field overhauls deliver lasting power.
| Part Number | 311503 |
|---|---|
| Part Name | Valve Plate R Construction Machinery Parts |
| Compatible Brand | Tongmyung |
| Applicable Models | HD450VII Excavators with A8V55 Pumps |
| Application | Excavator hydraulic system |
| Material | High-Hardness Alloy Steel |
| Product Color | Polished Steel Silver and Bright Golden Bronze |
| Working Temperature | -35°C to 125°C |
| Key Function | Providing precise fluid timing paths and high-pressure sealing within the right-circuit cylinder group |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Precision-polished surface achieves a tight fluid seal against the cylinder block face to stop pressure leakage.
High-lead bronze layer ensures excellent sliding properties even during low-lubrication startup states.
Curved fluid port passages minimize hydraulic cavitation erosion and lower system operational noise.
FAQ
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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