421-43-27460 4214327460 Hydraulic Valve Pressure Relief Valve WA380-5 WA400-5

Product Specification

421-43-27460 4214327460 Hydraulic Valve Pressure Relief Valve WA380-5 WA400-5 WA420-3 WA450-3 WA470-3 WA480-5 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with WA380-5 WA400-5 WA420-3 WA450-3 WA470-3 WA480-5 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 product is suitable for the overflow valve of WA350-3 loader, the pressure protection valve of the hydraulic distribution valve. It is precisely machined from alloy steel, calibrated on the test bench, and has a sensitive pressure relief response. It solves the problems of insufficient lifting force, pressure build-up, overflow noise, and abnormal vibration. The original vehicle size can be directly replaced. This product is for repairing hydraulic components of the loader.

Each overflow valve is tested and calibrated on the hydraulic test bench before leaving the factory. The pressure parameters strictly follow the original factory standards, and the valve core opens and closes quickly and sensitively. When the bucket is overloaded during loading or the lifting pressure exceeds the limit, it can quickly open the overflow to unload; when the pressure drops back to the set value, it will precisely close and lock the pressure immediately. This can effectively improve common faults such as insufficient lifting force of the loader, lack of power when retracting the bucket, sluggish movements,the entire machine, and abnormal overflow noise and vibration. It restores the equipment's operational power and reduces abnormal wear of the hydraulic system, avoiding high repair costs caused by damage to hydraulic components.

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.