GVO 421-4317630 Pressure Relief Valve Hydraulic Safety Valve Main Valve HD400 HD450 HD510 HD550 Excavator Mechanical Parts

GVO 421-4317630 Pressure Relief Valve Hydraulic Safety Valve Main Valve HD400 HD450 HD510 HD550 Excavator Mechanical Parts

Product Description

The GVO excavator relief valve, compatible with HD400 HD450 HD510 HD550 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 overflow valve is compatible with the distribution valves of HD400, HD450, HD510, and HD550 excavators. As an important pressure control component of the hydraulic system, it is commonly known as the auxiliary gun. It is mainly responsible for limiting the pressure of the branch circuits, releasing pressure in case of overload, protecting the executive elements such as the boom and the arm, and preventing the hydraulic circuit from being damaged due to excessively high pressure, which is the core component for the stable operation of the entire hydraulic system of the machine.

The valve body is made of high-strength alloy steel and is processed through forging. The valve core is precisely ground. It is combined with imported sealing components, which can withstand high-pressure impacts and resist oil corrosion. Under excavation, lifting, and heavy-load operation conditions, the valve core inside the valve responds sensitively, and the pressure relief and reset actions are crisp. This effectively eliminates common faults such as jamming, internal leakage, and inability to control the pressure, significantly reducing the probability of problems such as weak equipment operation, arm dropping, and shaking.

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.