GVO 352-6869 3526869 Auxiliary Relief Valve Pressure Relief Valve Hydraulic Control Valve E374 E390D E352F E349F Excavator Parts

GVO 352-6869 3526869 Auxiliary Relief Valve Pressure Relief Valve Hydraulic Control Valve E374 E390D E352F E349F Excavator Parts

Product Description

The GVO excavator relief valve, compatible with E374 E390D E352F E349F excavators, is a key pressure control valve in the hydraulic system. It regulates hydraulic pressure, releases overload pressure, protects core hydraulic components such as the main valve and hydraulic pump, and ensures stable operation of the entire machine.

This relief valve is precision-machined from high-quality steel and undergoes overall quenching treatment. Equipped with oil-resistant and high-pressure-resistant seals, it boasts excellent sealing performance, impact resistance, and wear resistance. Suitable for the high-pressure hydraulic conditions of excavators, it effectively prevents internal leakage, pressure loss, operational instability, and vibration.

Product Introduction

E365, E374, E390F excavators' overflow valves, main distribution valve overload protection plug-in valve. High-strength alloy steel is precisely processed. The valve core is hardened to enhance wear resistance, and the sealing components are resistant to aging and high temperatures, suitable for heavy-duty mining excavators under heavy-load conditions. It is used to limit the maximum pressure of the hydraulic system, achieve overload protection, and repair faults such as weak digging, unstable system pressure, and loud overflow noise in mining excavators.

Under heavy-duty mining conditions, the original vehicle's overflow valve is constantly subjected to high-pressure impact of large flow rates, which makes it prone to valve core wear and scratches, internal spring fatigue attenuation, and high-temperature aging of sealing rings. This can lead to problems such as insufficient digging power, inability to reach the required system pressure, and continuous loud overflow noise. This overflow valve optimizes the processing accuracy of the valve core, enhances the ability to resist impurities erosion, has stable internal spring elasticity, and is sensitive in pressure response. It is equipped with high-temperature resistant sealing components, suitable for the strict environment of continuous mining operations, and extends the service life of the valve components. The installation dimensions of the valve components are fully aligned with the original factory specifications. During maintenance, they can be directly disassembled, replaced, without modifying the pipelines, quickly restoring the heavy-load digging performance of the excavator. Compared to replacing the entire distribution valve group, it significantly reduces maintenance costs and is the preferred replacement part for hydraulic maintenance of large excavators.

Packaging & Shipping

We use high-strength, environmentally friendly paper export packaging, which is reinforced, cushioned, and moisture-proof, suitable for long-distance international logistics transportation, and meets cross-border freight and environmental protection standards. International transportation adopts formal cross-border logistics, with full tracking of logistics information and supporting customs clearance documents to ensure smooth customs clearance and timely delivery of goods overseas.

Company Introduction

The GVO brand is a manufacturer of hydraulic components. We mainly produce the most comprehensive range of pilot pumps, gear pumps, relief valves, hydraulic pumps, electrical components, hydraulic parts, engine assemblies, traveling assemblies, rotating assemblies, distribution valves, and other components.

We are factory direct sellers without any middlemen profiting from price differences. The quality is definitely the best for you because we are the ones who produce them. We cannot tarnish our reputation. The prices are also the most favorable for you. There is a stable delivery speed.

We value every customer and provide you with the best service. We offer pre-sale, in-sale, and after-sale guarantees. Any problems will definitely be resolved for you. We are always available to serve you.