209-5895 155-9198 455-2722 455-2775 Safety Valve Rotating Motor Pressure Relief Valve E365B E365C E385C E390D E390F Excavator

209-5895 155-9198 455-2722 455-2775 Safety Valve Rotating Motor Pressure Relief Valve E365B E365C E385C E390D E390F Excavator

Product Description

The GVO excavator relief valve, compatible with PC200-5 E365B E365C E385C E390D E390F 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 type of relief valve is suitable for the main control distribution valves of E365B, E365C, E385C, E390D, and E390F large-tonnage excavators. It is a core pressure control component of the hydraulic system and is responsible for the key functions of limiting the main circuit pressure of the entire machine and providing overload relief protection. Large-tonnage mining equipment has a large load and frequent impact loads, and the working stability of the relief valve directly determines the digging output and coordination of compound actions of the entire machine. Once the valve component wears out and leaks internally, it will cause faults such as insufficient power of the entire machine, overpressure in heavy loads, attenuation of pressure during hot operation, and jittery movements. It is a key component for major repairs of large excavators and maintenance of distribution valves, and is a precision hydraulic accessory that requires careful inspection and replacement during major overhauls and distribution valve repairs.

The valve body is forged from high-toughness alloy steel and undergoes quenching and tempering heat treatment to enhance the overall structural strength of the valve body, enabling it to withstand the high-frequency and high-pressure impacts generated during large excavator operations and resisting fatigue damage caused by alternating pressure. The valve core is machined with high precision, with strict control over the clearance, and is internally equipped with high-strength anti-fatigue springs and high-pressure, high-temperature-resistant sealing components. These components are specially optimized for harsh working conditions such as mines and heavy earthwork. They effectively reduce problems such as valve core scratching, jamming, and continuous internal leakage in the presence of high-temperature hydraulic oil and oil particle impurities. During digging, crushing, and heavy-load lifting operations, the valve core responds quickly, the relief action is sensitive, the system pressure is maintained stably, and no adverse phenomena such as pressure drift or premature relief occur.

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.