GVO 4282693 Pressure Relief Valve Control Valve Hydraulic Safety Valve EX200 EX300-2 Excavator Construction Machinery Parts

GVO 4282693 Pressure Relief Valve Control Valve Hydraulic Safety Valve EX200 EX300-2 Excavator Construction Machinery Parts

Product Description

The GVO excavator relief valve, compatible with EX200 EX300-2 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 is suitable for EX200 and EX300-2 excavators. It is an integral pressure control valve integrated within the main distribution valve. As the core overload protection component of the hydraulic system, it is responsible for limiting the maximum pressure of the system and quickly discharging the pressure when the load exceeds the limit, thereby protecting the entire hydraulic system from damage. 

The valve body is precisely machined from high-quality alloy steel, and the valve core is hardened by quenching and then polished to a mirror finish. The surface has high smoothness, which is resistant to the erosion and wear caused by hydraulic oil impurities, effectively reducing faults such as valve core scratching, jamming, and pressure drift. It is equipped with multiple sets of oil-resistant O-rings, ensuring stable and reliable sealing performance under long-term high-temperature and high-pressure working conditions. This helps to avoid problems such as internal leakage, pressure drop, and unstable pressure. 

The relief valve can precisely control the working pressure of the hydraulic circuit. When the excavation load exceeds the set value, it automatically opens the relief valve, protecting the hydraulic pump and multi-way valve from damage caused by high-pressure impacts. It can solve common hydraulic faults such as insufficient digging power, insufficient pressure build-up, excessive relief noise, and slow compound actions of the excavator.

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.