421-43-27460 419-43-27510 204-2805 Hydraulic Valve Pressure Relief Valve WA400

Product Specification

421-43-27460 419-43-27510 204-2805 Hydraulic Valve Pressure Relief Valve WA400 WA450 WA500 WA600 WA700 WA800 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with WA400 WA450 WA500 WA600 WA700 WA800 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 relief valve is suitable for large wheel loaders of the WA400, WA450, WA500, WA600, WA700, and WA800 series. It is the core hydraulic pressure protection component on the distribution valve assembly. Large loaders are mainly used for heavy-duty loading and excavation operations in mines and material yards. During the instant operations of digging, lifting, and discharging, huge hydraulic shocks will occur, and the relief valve is responsible for limiting the system pressure and overloading relief and unloading to promptly release the excessive high pressure in the circuit, protecting the valuable components such as the main hydraulic pump, multi-way distribution valve, and steering hydraulic components from damage caused by overpressure, stabilizing the hydraulic working pressure of the entire machine, and is an indispensable key component for the maintenance and repair of large-tonnage loaders.

The valve body is processed from high-strength alloy steel as a whole, and the valve core is precisely ground and heat-treated for high pressure resistance, impact resistance, and wear resistance. For the large-flow hydraulic system conditions of the WA series large-tonnage loaders, the valve core and valve sleeve are strictly controlled for the fitting clearance, and combined with high-performance high-pressure sealing components, it effectively reduces internal leakage of the valve body, eliminates leakage pressure, and oil seepage faults. It can long-term adapt to high-load operation environments in mines and sand and gravel yards, withstand frequent alternating pressure impacts and oil temperature changes, effectively extend the service life of the valve components, and reduce equipment failure and downtime.

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.