GVO LJ00878 Excavator SH700A3 SH700A5 SH800 LBX700X2 LBX800X2 Auxiliary Relief Valve Control Valve Safety Valve

GVO LJ00878 Excavator SH700A3 SH700A5 SH800 LBX700X2 LBX800X2 Auxiliary Relief Valve Control 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

This relief valve is specifically designed for Sumitomo SH700A3, SH700A5, and SH800 ultra-large tonnage mining excavators, fully adaptable to the harsh working conditions of heavy-duty excavators operating continuously for extended periods and subjected to high-frequency impacts from hydraulic breakers. It is suitable for high-load construction scenarios such as open-pit mining, large-scale earthwork projects, and large-scale infrastructure projects.

Addressing the points of high levels of dust and impurities in hydraulic oil and large fluctuations in operating oil temperature in mining environments, the valve core flow channel structure has been optimized to improve overall resistance to contamination and impurities, significantly reducing high-frequency hydraulic failures such as valve core jamming and scoring of the valve body inner wall.

Equipped with oil-resistant, high-temperature-resistant, and anti-aging high-performance sealing components, it maintains stable sealing performance under both high and low temperature conditions, preventing problems such as oil leakage and insufficient pressure relief during prolonged operation.

Replacing the GVO relief valve with this one can quickly restore the standard working pressure of the hydraulic system, restore the excavation power of the whole machine, and ensure smooth and stable opening and closing response. It also ensures stable and durable long-term operation performance, effectively extending the service life of the entire hydraulic system and helping equipment operators avoid the high maintenance costs and project losses caused by overhauling the main pump and distribution valve.

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.