421-43-48640 4214348640 Hydraulic Valve Pressure Relief Valve Safety Valve GD555 GD655 GD675 WA270 WA320 WA480 Excavator Parts

421-43-48640 4214348640 Hydraulic Valve Pressure Relief Valve Safety Valve GD555 GD655 GD675 WA270 WA320 WA480 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with GD555 GD655 GD675 WA270 WA320 WA480 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 valves of WA320, WA380 and WA420 loaders, as well as the pressure protection valves of distribution valves. It is made of alloy steel and processed precisely. The hydraulic calibration pressure is set according to the standard. The pressure relief is sensitive and quick. It can improve the problems of insufficient lifting force, pressure build-up, and abnormal noise from overflow. The original vehicle size can be directly replaced. This product is for repairing hydraulic components of loaders.

Each overflow valve is tested and calibrated on the hydraulic test bench before leaving the factory. The pressure parameters are strictly in accordance with the standard. The valve core opens and closes with a sensitive and rapid response. In case of overloading during bucket loading or when the lifting pressure exceeds the limit, the pressure relief can be initiated instantly. After the pressure drops, it quickly resets and locks the pressure. This can effectively solve typical faults of insufficient lifting force, weak bucket retraction and movement, action jamming, pressure build-up, abnormal noise and vibration of overflow in loaders. It can restore the overall operation power of the machine, reduce abnormal wear of the hydraulic system, and avoid high maintenance costs caused by damage to large 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.