GVO 7723-40-56100 723-40-56302 723-40-56600 Pressure Relief Valve Unloading Relief Valve PC200-6 PC300 PC350-6 Excavator Parts

GVO 7723-40-56100 723-40-56302 723-40-56600 Pressure Relief Valve Unloading Relief Valve PC200-6 PC300 PC350-6 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC200-6 PC300 PC350-6 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 for the distribution valves of PC200-6, PC300, and PC350-6 excavators, which is also known as the main gun in the industry. It is a core precision component in the hydraulic system of the entire machine, responsible for pressure regulation and overload protection. These models belong to classic old equipment with a large market share, widely used in various engineering operation scenarios such as earthwork excavation, mining stripping, demolition of old buildings, and site tidying.

The valve body is made of high-hardness alloy steel as the basic material, and the entire assembly undergoes quenching and tempering heat treatment, effectively enhancing the structural strength, impact resistance, and fatigue resistance of the valve body itself. It can withstand long-term high-frequency and high-pressure oil impact. The valve core is processed by high-precision mirror grinding, and the sealing parts of the valve orifice are treated by precise matching grinding. The valve core moves smoothly without obstruction, reducing the probability of valve jamming and valve core disengagement from the root cause. The valve orifice sealing surface has outstanding resistance to erosion and wear.

The entire set of valve components 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, effectively suppressing oil leakage inside the valve and external leakage. They are fully compatible with the harsh operating environment of old equipment sites, such as high dust, large fluctuations in oil temperature, and high content of hydraulic oil impurities. The product strictly conforms to all dimensional parameters of the parts, with consistent thread profiles, sealing groove positions, valve core stroke, and assembly shapes. During maintenance, it can be directly replaced in place without modifying any pipeline structures, significantly reducing the on-site disassembly and maintenance time, and facilitating the rapid completion of equipment emergency repairs by maintenance workshops.

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.