GVO 02600502 Main Pressure Relief Valve Pressure Control Valve Hydraulic Safety Valve DH500-7 DH500-9 DX520 Excavator Parts

GVO 02600502 Main Pressure Relief Valve Pressure Control Valve Hydraulic Safety Valve DH500-7 DH500-9 DX520 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with DH500-7 DH500-9 DX520 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, designed for large excavators such as DH500-7, DH500-9, and DX520, is a core pressure control component of the main distribution valve. It directly manages the maximum working pressure of the entire hydraulic system and is a crucial component that protects hydraulic pumps, distribution valves, and oil pipes and cylinders from damage caused by high-pressure impacts. 

The product body is made by overall forging with high-strength alloy steel. The valve core and valve seat undergo precise grinding and matching treatment, and the internal clearance is controlled at the micron level. It can maintain excellent sealing performance under continuous high-pressure conditions, reducing internal leakage oil failures. The surface is treated with special hardening and anti-rust processing, resisting the erosion of hydraulic oil by hydraulic pressure, and adapting to the harsh working environment on construction sites with much dust, large temperature differences, and high amounts of hydraulic oil impurities. It is equipped with high-pressure nitrile rubber sealing rings, which are resistant to aging and hydraulic oil erosion, eliminating the problem of valve body oil leakage, and will not easily fail in sealing under long-term high-frequency opening and closing, effectively avoiding common faults such as pressure relief, pressure drop, and insufficient movement caused by damaged overflow valve sealing.

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.