GVO 723-40-91500 723-90-66900 Auxiliary Relief Valve Pressure Relief Valve

Product Specification

GVO 723-40-91500 723-90-66900 Auxiliary Relief Valve Pressure Relief Valve Safety Valve PC200-7 PC200-8 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

This GVO high-precision hydraulic relief valve is the main relief valve for Komatsu's popular 20-ton PC200-7 and PC200-8 models, a multi-way distribution valve commonly referred to in the industry as a hydraulic main valve, overload safety valve, or pressure regulating valve. It is a core component for pressure control and safety protection in the entire machine's hydraulic system.

The product features a modular, split-structure design. If only the seals age and break, or the springs fatigue, the main valve body can be reused by replacing the vulnerable small parts, effectively extending the overall lifespan of the valve.

Before leaving the factory, it undergoes long-term aging and durability testing under extreme conditions, including mine dust intrusion, mud and water erosion, high-temperature exposure in summer, and low-temperature freezing in winter. This results in a valve core with stronger resistance to scratches from hydraulic oil particles. Even if the equipment's hydraulic oil maintenance is not timely or the oil cleanliness is poor, it is less prone to valve jamming or valve core sticking failure. Under long-term, high-frequency on-site operation, its actual service life far exceeds that of low-priced, generic relief valves on the market.

Each product comes with a factory hydraulic pressure test certificate. For bulk purchases, a detailed comparison table of external dimensions and pressure parameters can be provided to facilitate the classification and warehousing management of parts distributors, customs declaration and filing of foreign trade orders, and model verification and confirmation for overseas customers.

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.