Hydraulic Pump Control Valve
Product Introduction
This integrated control valve for Rexroth A11VO95/130/145 swash plate axial piston pumps integrates constant power (LR), pressure cut - off, load - sensing (LS) and differential pressure compensation. Suitable for open circuits, it has a rated pressure of 350 bar and peak pressure of 400 bar. Adopting pilot hydraulic control, it enables stepless displacement adjustment from 0 to Vgmax, accurately matching pump operating conditions and providing stable pressure and flow for mobile machinery hydraulic systems, suitable for heavy - duty operations.
Product Summary
Hydraulic pump control valves are vital components within fluid power systems, tasked with the precise regulation of hydraulic fluid flow, pressure, and direction. Serving as the crucial interface between the pump and actuators (cylinders or motors), they guarantee peak system performance, energy efficiency, and operational safety.
These valves come in diverse configurations—including pressure, flow, and directional control variants—to suit a wide range of industrial needs. Their core responsibilities encompass safeguarding against system overloads, fine-tuning actuator speeds, and facilitating intricate motion sequences with high precision.
Product Parameters
| Items |
Specifications |
| Compatible Pump Model |
A11VO95/130/145 |
| Condition |
New |
| Function |
Completely interchangeable with original pump |
| Type |
Replacement parts for hydraulic piston pump |
| Operating Temperature |
-20℃~80℃ |
Product Application
This pump control valve is mainly suitable for construction machinery (excavators, crawler cranes, concrete pump trucks), mining machinery (roadheaders, mining dump trucks), agricultural machinery (large tractors, combine harvesters) and forestry machinery (loggers). It is especially ideal for open - loop, high - pressure heavy - duty and variable - condition hydrostatic transmission systems to ensure efficient and stable equipment operation.
Product Advantages
This control valve features constant power + load - sensing dual control, with a response time of ≤120ms and low energy consumption. The integrated design reduces pipeline connections, lowering leakage and vibration risks. It is 100% compatible with original A11VO pumps for easy installation. It has strong anti - pollution ability and is suitable for ISO 46 anti - wear hydraulic oil. The valve body is wear - resistant and corrosion - resistant, and the alloy spring has a long fatigue life with low maintenance cost.
1. No displacement adjustment: Check pilot pressure and clean valve core impurities.
2. Abnormal pressure: Recalibrate the constant power valve and replace the aged spring.
3. Excessive leakage: Replace FKM seals and check the valve body fit clearance.
4. Slow response: Filter hydraulic oil to ISO 19/17/14 class.
5. Abnormal noise: Troubleshoot air in the oil circuit and tighten loose joints.
Company Profile
Hebei Runhe Hydraulic Co., Ltd. has been involved in the hydraulic industry for over a decade. It is a team specializing in hydraulic services, R&D, manufacturing, processing, and marketing. Products include not only hydraulic pumps and control valves, but also hydraulic cylinders, pumps, and motors. In addition to standard product lines, customized services are available to meet specific customer needs. For many years, they have served numerous countries and companies both domestically and internationally. Inquiries are welcome!
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