GVO VOE14552480 14552480 Unloading Valve Main Relief Valve Safety Valve EC80

Product Specification

GVO VOE14552480 14552480 Unloading Valve Main Relief Valve Safety Valve EC80 E307D E320D 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 GVO high-precision cartridge-type relief valve is a dedicated pressure protection valve for the hydraulic systems of classic main models such as the EC80 mini excavator, E307D and E320D. It is compatible with both main relief and overload relief installation conditions, making it an indispensable core component for pressure stabilization and safety protection in the entire machine's hydraulic circuit.

The product is meticulously replicated from the original manufacturer's 3D valve body data, with the overall length, outer diameter, multi-stage sealing groove positions, external thread pitch, radial oil hole arrangement, and tail-end adjustment and locking structure perfectly matching the original parts. No modifications such as boring, grinding, or adding shims to the valve block or valve bores are required. Maintenance personnel can directly screw it into the original position for assembly, significantly reducing the technical barriers to equipment repair and downtime costs.

The valve body is made of high-alloy structural steel forged as a whole blank, which is different from the cheap valve bodies made of ordinary round steel that are machined on the market. The internal metallographic structure is dense and uniform, which can withstand the high-frequency high-pressure loads brought by heavy excavation, compound action pressure, and rotational impact of excavators for a long time. It eliminates stubborn failures such as high-pressure expansion and cracking of valve body, deformation of internal oil passage, and oil leakage due to thread stripping from the hardware base material. It is perfectly adapted to high-intensity engineering application scenarios such as earthwork excavation, hard soil crushing, heavy-load loading, and long-term continuous operation.

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.