GVO Excavator Parts DX60 E307E Swing Relief Valve Rotary Motor Pressure Relief Valve Hydraulic Safety Valve

GVO Excavator Parts DX60 E307E Swing Relief Valve Rotary Motor Pressure Relief Valve Hydraulic 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 brand DX60 Doosan excavator and E307E dedicated relief valve is a core pressure protection component in the hydraulic system of small tonnage excavators. It precisely matches the installation dimensions of the Doosan DX60's overall hydraulic circuit and the E307E's distribution valve and swing motor hydraulic assembly. It is a threaded cartridge pressure safety valve, also commonly referred to in the industry as a swing main cannon, rotary relief valve, or overload relief valve.

Regarding material heat treatment and precision machining, the DX60/E307E universal relief valve undergoes high-standard heavy-duty hydraulic component production processes. The valve body undergoes a dual heat treatment process of vacuum quenching and low-temperature tempering, significantly improving surface hardness and providing excellent resistance to high-pressure extrusion, particulate hydraulic oil wear, and frequent opening and closing fatigue.

The valve core and valve seat mating pair adopt high-precision honing mirror surface treatment, and the mating gap is controlled at the micron level. The opening and closing response speed is sensitive and rapid. When the hydraulic system pressure exceeds the set safety threshold, it can instantly open to relieve pressure and stabilize pressure. When the pressure drops, it can accurately close and lock pressure, eliminating classic hydraulic failures such as weak excavator movement, slippage during rotation, slow lifting, and engine stalling and boom drop caused by internal leakage and pressure relief.

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.