GVO VOE14514691 14514691 Pressure Relief Valve Logic Valve Hydraulic Safety

Product Specification

GVO VOE14514691 14514691 Pressure Relief Valve Logic Valve Hydraulic Safety Valve EC140 EC210 EC240 Excavator Parts 

Product Description

The GVO excavator relief valve, compatible with Hitachi 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 threaded cartridge relief valve is a dedicated pressure control valve for the multi-way main control valve of mainstream medium-sized excavators such as the  EC140, EC210, and EC240. These three models have a large market presence and are widely used in various engineering scenarios, including urban municipal pipeline excavation, highway subgrade construction, river dredging, earthwork transportation, hard soil excavation in mountainous areas, and new rural infrastructure construction. These applications often require long-term, high-frequency operations in muddy areas, gravel pits, and confined construction zones.

The entire valve body is forged from high-strength alloy steel, eliminating the need for ordinary sand casting and avoiding inherent defects such as porosity, sand holes, and loose material in castings. Core components such as the valve core and seat, which bear pressure and slide repeatedly, undergo double heat treatment including quenching hardening and surface carburizing hardening. This results in sufficient surface hardness, excellent wear resistance and impact resistance, resisting abrasive wear from iron filings and hard mud in the hydraulic oil, effectively extending the service life of the relief valve. The valve core mating positions are meticulously ground using high-precision CNC grinding equipment, with strict control over the scientific assembly clearance between the valve core and valve sleeve. This ensures smooth and sensitive valve core opening and resetting, fundamentally reducing the probability of troublesome malfunctions such as valve core jamming and return-to-position sticking. The bottom hexagonal locking end is thickened, ensuring even force distribution on the wrench during maintenance and disassembly, preventing slippage and edge damage. Multiple sealing points are equipped with high-temperature resistant, hydraulic oil corrosion resistant, and aging-resistant O-rings, providing multi-layered sealing protection to prevent dust and metal impurities from entering the valve core working clearance.

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.