723-50-11311 Hydraulic Valve Pressure Relief Valve Logic Valve Bypass Valve PC360-7 PC300-7 PC200-7-8 PC450-7 Excavator Parts

723-50-11311 Hydraulic Valve Pressure Relief Valve Logic Valve Bypass Valve PC360-7 PC300-7 PC200-7-8 PC450-7 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC360-7 PC300-7 PC200-7-8 PC450-7 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 main overflow valve that is compatible with the distribution valve assemblies of PC360-7, PC300-7, PC200-7, PC200-8, and PC450-7 excavators. It is also a core precision component in the hydraulic system that is responsible for pressure control and overload protection. It is commonly referred to as the main gun in the industry. It directly determines the maximum working pressure of the entire hydraulic system. In heavy-load working conditions such as digging, lifting, crushing, and rotating compound actions, when the system oil pressure exceeds the safety limit set by the equipment, the overflow valve will quickly open to overflow and relieve pressure, redirecting the excess high-pressure oil back to the oil tank, and locking the system pressure within the original factory standard range.

The valve body is made of high-hardness alloy steel as the base material, and is strengthened through quenching and tempering heat treatment, significantly enhancing the structural strength, impact resistance, and fatigue resistance of the valve body. The valve core is processed using high-precision mirror grinding technology, and the valve port sealing surface is precisely matched and ground to ensure smooth and unobstructed valve core reciprocation, eliminating the phenomenon of valve sticking and jamming. The valve port sealing surface can withstand long-term high-frequency and high-pressure oil flushing, with outstanding wear resistance and corrosion resistance. The entire valve assembly is equipped with multiple sets of high-performance sealing kits. The sealing rings are made of special rubber materials that are resistant to high pressure, resistant to hydraulic oil corrosion, and resistant to aging under high and low temperatures. This minimizes the risk of internal leakage and external oil seepage within the valve and perfectly addresses complex and harsh working conditions such as dusty construction sites, large day-night temperature differences, and high levels of hydraulic oil impurities.

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.