GVO 70898400 Hydraulic Check Valve Pressure Safety Valve Relief Valve EC210B EC210D EC240B EC240C Excavator Mechanical Parts

GVO 70898400 Hydraulic Check Valve Pressure Safety Valve Relief Valve EC210B EC210D EC240B EC240C Excavator Mechanical Parts

Product Description

The GVO excavator relief valve, compatible with EC210B EC210D EC240B EC240C 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 threaded cartridge relief valve is a hydraulic safety valve specifically designed for the multi-way distribution valve of EC210B, EC210D, EC240B, and EC240C medium-sized excavators. It is directly installed inside the main control valve's valve hole and is responsible for limiting the pressure of the entire hydraulic circuit, overloading relief and pressure stabilization in the system. The B series and C, D series medium-sized excavators have a very high domestic market share in infrastructure, earthwork, mining, and river engineering projects. They are constantly exposed to complex working conditions such as heavy-load excavation, stone impact, and high-frequency operation of impact hammers. The hydraulic system frequently experiences instantaneous high-pressure impacts.

The valve body is made of high-strength alloy steel as the raw material and is formed through forging and precise machining. The mating parts of the valve core and valve sleeve are processed using high-precision honing grinding technology. The sealing working surface is smooth and precise, capable of enduring continuous high-pressure oil flow from large flow rates, effectively reducing wear caused by impurities in the hydraulic oil and minimizing valve core sticking and valve port leakage.

The entire set of valve components is equipped with a composite sealing assembly that is resistant to high pressure and oil corrosion. It can adapt to the high-temperature oil temperature caused by continuous equipment operation. In hot summer construction and cold machine startup environments, it can maintain good sealing performance, suppress system leakage, and improve equipment problems such as heat-up pressure drop and pressure maintenance failure. The product is of a standard cartridge structure. The thread specification, valve body outer diameter size, and oil port opening position are fully aligned with the parameters. During maintenance and replacement, there is no need to modify the valve body and pipeline. It can be directly installed in the valve hole of the distribution valve to complete the assembly, making disassembly and assembly convenient and significantly reducing the downtime for equipment maintenance on the construction site, meeting the actual needs of rapid repair and replacement at the maintenance site.

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.