GVO 723-46-40601 7234640601 Pressure Relief Valve Unloading Relief Valve Main Control Valve PC300-6 PC400-6 Excavator Parts

GVO 723-46-40601 7234640601 Pressure Relief Valve Unloading Relief Valve Main Control Valve PC300-6 PC400-6 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC300-6 PC400-6 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 overflow valve is the main overflow valve specifically designed for the distribution valves of PC300-6 and PC400-6 heavy-duty excavators. It is commonly known as the main gun in the industry and is a core precision hydraulic component in the entire machine's hydraulic system that controls system pressure and provides overload protection. It is a leading model in the mining and heavy-duty engineering fields, widely used in high-intensity operation scenarios such as mining quarrying, earth and rock removal, and heavy-duty excavation. The equipment has a large operating load and the hydraulic system operates under high-pressure conditions for a long time.

The valve body is forged from high-strength alloy steel and undergoes quenching and tempering heat treatment to enhance the overall hardness, structural strength, and impact and fatigue resistance of the valve body. It can withstand the high-frequency, high-amplitude pressure oil impact of heavy-duty models. The valve core is manufactured using high-precision mirror grinding technology, and the sealing working surfaces of the valve ports are precisely matched and ground. The valve core moves smoothly and flexibly, minimizing the occurrence of valve jamming and valve core jamming problems. The valve port sealing surface has excellent resistance to erosion and wear, and can withstand the continuous flushing of high-flow, high-pressure oil. The entire set of valve components is equipped with a complete set of high-performance sealing components. The sealing rings are made of special rubber materials resistant to high pressure, hydraulic oil corrosion, and aging, effectively reducing the risk of internal leakage and external oil leakage and seepage in the valve body, and fully adapting to the harsh operating environment of mining sites with large dust, large oil temperature fluctuations, and high levels of hydraulic oil impurities.

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.