XKAY-01003 XKAY-01012 Excavator HL760-7 HL760-9 Auxiliary Relief Valve Control Valve Hydraulic Safety Valve

XKAY-01003 XKAY-01012 Excavator HL760-7 HL760-9 Auxiliary Relief Valve Control Valve Hydraulic Safety Valve

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

This GVO relief valve, designed for HL760-7/HL760-9 models, is manufactured in strict accordance with high-standard specifications for construction machinery hydraulic components. It is backed by a comprehensive quality control system covering every stage—from raw material intake and machining (rough and precision) to heat treatment, precision grinding, clean-room assembly, and final product testing.

The valve body bore undergoes a high-precision honing process to achieve a superior surface finish, effectively minimizing frictional wear caused by the reciprocating motion of the spool. It features a high-fatigue-strength alloy spring that has passed durability tests involving tens of thousands of cycles; the spring resists deformation and loss of elasticity under prolonged, repetitive pressure, ensuring consistent pressure regulation.

Each finished unit undergoes comprehensive performance testing on a professional hydraulic test bench, where key parameters—such as relief opening pressure, closing characteristics, pressure stability, and leakage rates—are individually verified to ensure only compliant products reach the market.

Featuring a standardized cartridge-style design, the valve offers excellent interchangeability with OEM parts for this series of modern machines, facilitating quick and efficient maintenance and installation. The valve body is highly impact- and fatigue-resistant, capable of withstanding the continuous hydraulic shocks associated with the frequent load fluctuations of heavy-duty excavators, making it a reliable and cost-effective replacement part for the construction machinery aftermarket.

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.