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31QA-20041 Proportional Solenoid Valve EPPR Valve Assy Replacement for Hyundai Excavator
Designed for Hyundai excavators, the 31QA20041 valve guarantees efficient fluid control and stable hydraulic system performance. Its robust construction minimizes leakage risks and withstands high-pressure environments, ensuring long-term durability. This valve is compatible with Hyundai models such as R290-7 and R300-7, providing seamless integration and enhanced operational efficiency. Trust this component to support heavy-duty tasks with precision and reliability, keeping your equipment running smoothly.
31QA-20041, also written as 31QA20041, is a replacement proportional pressure reducing valve assembly (EPPR proportional solenoid valve) for Hyundai construction equipment. Installed on the main hydraulic pump regulation system or main control valve block of excavators, this key electro-hydraulic component receives electronic signals from the machine MCU. It precisely adjusts hydraulic oil flow to dynamically control pump displacement, output power and pilot pressure. It serves as a reliable substitute for the original unit to restore smooth combined hydraulic movements of Hyundai excavators.
| Item | Details |
|---|---|
| OEM Number | 31QA-20041, 31QA20041 |
| Part Type | VALVE ASSY-EPPR |
| Rated Voltage | 24V |
| Mounting Position | Main hydraulic pump regulator or main control valve |
| Core Function | Regulate hydraulic flow, control pump displacement and pilot pressure based on MCU signals |
| Condition | New Aftermarket |
| MOQ | contact us |
FAQs
Q: What Hyundai excavator models fit this 31QA-20041 EPPR proportional solenoid valve?
A: It fits Hyundai 9 / 9S series: R140LC-9, R160LC-9, R210LC-9, R220LC-9A, R250LC-9, R260LC-9S, R300LC-9S, R330LC-9S, R380LC-9. HX series tracked excavators: HX140L, HX160L, HX180L, HX220L, HX260L, HX300L, HX330L, HX380L, HX430L, HX480L, HX520L. HW wheel excavators: HW140, HW210. Also compatible with large mining model R1200-9.
Q: What failure symptoms show the proportional EPPR valve needs replacing?
A: Typical issues include slow response or reduced speed for swing, travel or boom lifting functions, poor smoothness during combined hydraulic operations, and unexpected engine power loss or stalling under heavy load. These problems often come from burnt coils, internal spool leakage or stuck valve spools.
Q: What does the EPPR proportional valve do on a Hyundai excavator?
A: It acts as the electro-hydraulic control heart of the hydraulic pump system. It converts electric control signals into adjustable hydraulic pressure, managing pump output to match load demands and maintain stable machine performance.
Q: What should I check before ordering this replacement proportional valve?
A: Confirm your excavator model, main pump serial number and existing valve part number. It is recommended to inspect the hydraulic circuit for contamination, since dirty oil can quickly damage the new valve assembly.
31QA20041-proportional-solenoid-valve
31QA20041 Valve For HYUNDAI 31QA-20041
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