GVO 592-2879 576-2570 Excavator Parts E374 E395 Auxiliary Relief Valve Control Valve Pressure Relief Valve Safety Valve

GVO 592-2879 576-2570 Excavator Parts E374 E395 Auxiliary Relief Valve Control Valve Pressure Relief Valve Safety Valve

Product Description

The GVO excavator relief valve, compatible with Hitachi 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

The GVO relief valve is specifically designed for the hydraulic systems of E374 and E395 large mining excavators. As a core pressure control and protection component in the distribution valve, it is precision-machined according to the original manufacturer's drawings. The thread specifications, oil hole positions, valve core stroke, and rated opening pressure are completely identical to the original parts, allowing for direct, non-destructive insertion and replacement without secondary processing or modification of the valve block, significantly reducing the difficulty of on-site maintenance and debugging in mines.

The internal pressure regulating spring is made of high-toughness, high-temperature resistant alloy spring steel. It can withstand the reciprocating impact of high-frequency oil pressure for extended periods, resisting elasticity decay and plastic deformation. It maintains a stable pressure regulation range even after long-term use, effectively preventing pressure drift and uncontrolled pressure relief malfunctions in the later stages of equipment service.

The valve is equipped with high-pressure resistant and hydraulic oil corrosion-resistant high-performance sealing components, resisting long-term corrosion from high-temperature hydraulic oil and preventing oil leakage due to external valve body leakage and seal aging. At the same time, the product optimizes the internal oil passage flow structure, enhances its anti-pollution ability, reduces the risk of valve core jamming and sudden valve failure caused by impurities in the hydraulic oil in the mining area, reduces unplanned equipment downtime maintenance, ensures continuous production of mining projects, and avoids high economic losses caused by work stoppages.

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.