723-90-69100 7239069100 Pressure Relief Valve Lifting Valve Hydraulic Safety Valve PC300-8 PC350-8 Excavator Mechanical Parts

723-90-69100 7239069100 Pressure Relief Valve Lifting Valve Hydraulic Safety Valve PC300-8 PC350-8 Excavator Mechanical Parts

Product Description

The GVO excavator relief valve, compatible with PC300-8 PC350-8 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 overflow valve is the core pressure protection component on the main control valves of the PC300-8 and PC350-8 excavators. It is specially matched for the hydraulic systems of these two medium-tonnage excavators.

The valve body is precisely machined from high-strength alloy steel and undergoes quenching hardening and mirror surface grinding treatment. The valve core and valve seat have high coordination accuracy, can withstand high-pressure shocks, and can tolerate continuous alternating loads in conditions such as earthwork and quarrying sites. The overflow valve is responsible for limiting the maximum working pressure of the hydraulic circuit. When the excavation load suddenly exceeds the limit, the valve component quickly opens to release pressure, protecting expensive hydraulic components such as hydraulic pumps, distribution valves, and cylinders, and preventing overloading pipe bursts and component damage.

The matching sealing components are resistant to temperature and wear. They do not age or leak easily in the long-term continuous operation of high-temperature hydraulic oil. The pressure output is stable in both cold and hot vehicle conditions, effectively improving common faults such as weak movements, stuck vehicles, abnormal overflow sounds, and pressure drift in the PC300-8 and PC350-8 models.

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.