GVO 709-10-51301 Main Pressure Relief Valve Hydraulic Safety Valve WA600-3D WA600-3 Excavator Construction Machinery Parts

GVO 709-10-51301 Main Pressure Relief Valve Hydraulic Safety Valve WA600-3D WA600-3 Excavator Construction Machinery Parts

Product Description

The GVO excavator relief valve, compatible with  WA600-3D WA600-3  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 can be used as the main overflow valve or the branch safety valve, specifically addressing common faults such as weak overall operation of the excavator, insufficient system pressure, vehicle stalling, high hydraulic oil temperature, and abnormal noise from the oil circuit. Each valve is fully tested on the hydraulic test bench before leaving the factory, with strict verification of the opening pressure, return performance, and internal leakage parameters.

During the digging, lifting, and heavy-load rotation operations of large and medium-sized excavators, the hydraulic circuit frequently experiences instantaneous high-pressure impacts. Once the performance of the overflow valve deteriorates and fails, a series of problems such as weak overall operation, high system temperature, burst oil pipes, premature wear and damage of pumps and valves, etc., will occur. This overflow valve is designed to address these operational pain points. The external threads are precisely machined, and they fit tightly with the valve holes. It is combined with multiple O-ring seals to prevent external leakage at the assembly position. The internal pressure regulating spring undergoes durability fatigue tests, and it does not easily exhibit elastic degradation after repeated opening and closing over a long period. The tail adjustment nut supports on-site pressure adjustment, and it is compatible with different system pressure parameters of different models.

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.