GVO 0646201 4392197 Excavator EX550 EX550-5 EX600H-3 EX600H-5 Auxiliary Relief Valve Control Valve Safety Valve

GVO 0646201 4392197 Excavator EX550 EX550-5 EX600H-3 EX600H-5 Auxiliary Relief Valve Control 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 relief valve, compatible with EX550/EX550-5/EX600H-3, is manufactured strictly according to engineering machinery hydraulic component manufacturing standards. It precisely controls the valve core clearance to minimize internal leakage. All finished products undergo pressure testing on a hydraulic test bench to verify the relief pressure, opening and closing sensitivity, and pressure stabilization effect.

The valve body is made of high-strength alloy steel, strengthened by heat treatment and high-precision CNC honing. The valve core is precisely matched and ground, enabling accurate and stable control of the hydraulic circuit oil pressure. It quickly overflows and relieves pressure in case of system overload, effectively protecting the hydraulic main pump and distribution valve, and preventing high-pressure impact damage to core hydraulic components.

Equipped with high- and low-temperature resistant high-quality sealing components, it is less prone to oil leakage and pressure leakage problems during long-term operation. It effectively improves common faults such as weak digging power, stalling and overheating, system pressure fluctuations, and sluggish operation. The opening and closing response is sensitive, and the pressure does not easily drift during long-term operation, reducing equipment overhaul costs.

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.