GVO R901162839 Hydraulic Main Pressure Relief Valve Overload Safety Valve M9 Excavator Construction Machinery Parts

GVO R901162839 Hydraulic Main Pressure Relief Valve Overload Safety Valve M9 Excavator Construction Machinery Parts

Product Description

The GVO excavator relief valve, compatible with 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

The M9 relief valve, as the core hydraulic master control relief valve of the main valve assembly, is widely used in the main hydraulic system of large-tonnage excavators. It is the core component for pressure protection and pressure setting in the entire hydraulic circuit, responsible for limiting the maximum system pressure, overload relief, and pressure stabilization. It directly determines the digging force of the entire excavator, the smoothness of compound actions, and the overall service life of the hydraulic system.

The valve body of the relief valve is made of high-strength alloy steel. It undergoes forging, precise CNC machining, and deep hole grinding treatment. The mating surface of the valve core is achieved through high-precision mirror grinding. The clearance between the valve core and the valve sleeve is strictly controlled to effectively avoid internal leakage under high-pressure conditions. All components of the valve group undergo heat treatment, enhancing surface hardness and impact resistance, and can withstand the impact of high-pressure oil continuously, resisting wear caused by trace impurities in the oil, and is suitable for the use environment of various domestic hydraulic oils of different qualities.

The sealing components are made of special rubber materials resistant to high pressure and aging. In the working environment with frequent pressure fluctuations and alternating high and low temperatures, they are less likely to harden, leak, or crack, ensuring the overall sealing performance of the valve components and eliminating failure problems such as pressure drop and insufficient action force caused by sealing failure.

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.