2420-1220 2125-1226 Excavator DH150-7 SH120A3 Auxiliary Relief Valve Pressure Relief Valve Safety Valve

2420-1220 2125-1226 Excavator DH150-7 SH120A3 Auxiliary Relief 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

This GVO relief valve is specifically tuned for the hydraulic systems of Doosan DH150-7 and Sumitomo SH120A3, matching the original factory standard pressure range. It offers linear pressure adjustment without lag and sensitive instantaneous overload pressure relief. The valve body features high-precision honing and a high-strength pressure-resistant spring, making it resistant to fatigue and deformation during long-term, high-frequency operation. Its multi-seal structure design resists hydraulic oil impurities and high-temperature corrosion, significantly reducing oil leakage and pressure relief failures.

It is available in two specifications: main relief for the main boom and branch overload relief for the branch. These protect the main hydraulic circuit and the boom, stick, and travel branch circuits respectively, providing double protection against hydraulic pressure shocks. Each valve undergoes pressure testing, ensuring minimal pressure error control, reducing the probability of major overhauls of the distribution valve and main pump, and extending the service life of the entire hydraulic system.

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.