GVO 9208771 Main Relief Valve Pressure Relief Valve Hydraulic Pump Valve ZX160

Product Specification

GVO 9208771 Main Relief Valve Pressure Relief Valve Hydraulic Pump Valve ZX160 ZX180LC ZX180LC-AMS ZX180LC 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 is a main circuit control relief valve, specifically designed for Hitachi ZX160 and ZX180LC hydraulic systems. It controls the peak pressure output of the main pump, and the bottom adjusting nut allows for precise calibration of the system's standard pressure, perfectly matching the original factory hydraulic settings.

1. The valve core and sleeve undergo high-precision mirror-finish matching grinding, ensuring the sealing surface is resistant to scratches from hydraulic oil impurities. It provides sensitive opening and closing response under high-pressure conditions, preventing premature pressure release and continuous internal leakage losses.

2. The double-layer O-ring composite sealing structure completely eliminates internal and external leakage. The built-in high-temperature alloy pressure adjusting spring is resistant to fatigue and deformation under long-term high-temperature and high-frequency impact conditions.

3. Durability surpasses that of ordinary aftermarket valves. It is interchangeable with ZX130 and ZX200 models on the same platform, suitable for long-term heavy-duty construction in mining and municipal applications.

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.