GVO R930071773 4120002745009 Relief Valve Pressure Control Valve Hydraulic Safety Valve Excavator Construction Machinery Parts

GVO R930071773 4120002745009 Relief Valve Pressure Control Valve Hydraulic Safety Valve Excavator Construction Machinery Parts

Product Description

The GVO excavator relief valve, compatible with 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 overflow valve is a crucial plug-in pressure control valve component in the hydraulic system of construction machinery. It is widely compatible with the distribution valve assemblies of various large-tonnage excavators and performs core functions such as limiting system pressure, overloading relief, and protecting the hydraulic circuit. During the excavation, heavy-load lifting of the arm, and crushing operations of the excavator, the hydraulic circuit will generate instantaneous high-pressure impacts. This overflow valve can precisely control the maximum working pressure of the system. When the pressure exceeds the set threshold, it will quickly open for overflow relief to prevent the hydraulic pump, main control valve, cylinder, and high-pressure pipelines from suffering overpressure damage and avoid major failures such as pipe burst and valve body tearing.

It is forged from high-strength alloy steel and undergoes quenching and tempering treatment to enhance the impact resistance and fatigue resistance of the valve body. It can withstand high-frequency and high-pressure hydraulic oil erosion for a long time. The valve core and valve seat are paired for high-precision grinding processing, with a micrometer-level clearance ensuring the sensitive response of the valve group opening and closing, significantly reducing internal leakage, and preventing premature overflow and relief under non-operational conditions. The surface of the valve core is treated with a wear-resistant strengthening process to resist erosion and wear caused by fine impurities in the hydraulic oil, effectively extending the service life of the components. The entire sealing assembly uses high-quality sealing rings that are resistant to high pressure and oil corrosion, suitable for a wide range of working temperature intervals of construction machinery. They do not harden in low-temperature environments or age and deform in high-temperature conditions, eliminating the faults of external oil leakage and cross-leakage, and are suitable for dusty and harsh working environments such as mines and earthwork sites.

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.