GVO Auxiliary Relief Valve Distributor Pressure Relief Valve Hydraulic Safety

Product Specification

GVO Auxiliary Relief Valve Distributor Pressure Relief Valve Hydraulic Safety Valve LiuGong LG922 LG923 LG933 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

The GVO relief valve is compatible with the hydraulic systems of Lingong LG922, LG923, and LG933 medium-sized excavators, serving as the core pressure protection and control valve within the multi-way distribution valve. The product is manufactured strictly according to the original parts' specifications, with thread dimensions, orifice layout, valve core stroke, and rated relief pressure all matching the original parts. It supports direct insert replacement, eliminating the need for secondary grinding and modification of the valve bore during maintenance and assembly, effectively reducing equipment downtime for repairs.

The valve body is forged from high-strength alloy steel. The key mating surfaces of the valve core undergo quenching hardening and high-precision honing processes, precisely controlling the clearance between the valve core and valve sleeve. This effectively suppresses internal leakage under high-pressure, high-flow continuous operation, stably maintaining the hydraulic system's set working oil pressure.

The valve is equipped with an oil-resistant and aging-resistant high-pressure sealing kit to resist long-term corrosion from high-temperature hydraulic oil, preventing external oil leakage and seepage caused by seal aging and failure. The internal flow channels have been optimized to improve the valve's resistance to contamination, reduce the risk of valve core jamming and sudden valve failure caused by impurities in hydraulic oil, reduce unplanned equipment downtime, ensure continuous construction of engineering projects, and avoid economic losses caused by 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.