723-40-71103 723-40-71900 723-40-71100 Pressure Relief Valve Pressure Reducing Valve PC200-7 PC210-7 PC228US-3 Excavator Parts

723-40-71103 723-40-71900 723-40-71100 Pressure Relief Valve Pressure Reducing Valve PC200-7 PC210-7 PC228US-3 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC200-7 PC210-7 PC228US-3 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 pilot relief valve, which is compatible with PC200-7, PC210-7, and PC228US-3 excavators, is the core control valve of the entire machine's pilot hydraulic system. It directly controls the functions of pressure reduction, stabilization, and overflow protection in the pilot oil circuit. The operation of the handle and the switching of the main control valve all rely on the stable pilot pressure output by this valve. It is a highly precise hydraulic component with a very high maintenance and replacement frequency for these Komatsu models.

The valve body is made by forging high-quality alloy steel and undergoes quenching and tempering heat treatment to enhance the overall structural strength of the valve body and prevent deformation due to long-term exposure to alternating hydraulic pressure. The contact surfaces of the valve block are machined using high-precision surface grinding, and the oil passage holes are precisely bored. The internal flow channels are smooth, minimizing the resistance of hydraulic oil flow and reducing the risk of internal leakage caused by turbulent oil flow.

The internal valve core is precisely machined using wear-resistant materials, and the clearance between the valve core and the valve hole is strictly controlled. This can effectively resist the scratches and valve jamming caused by fine impurities in the hydraulic oil. An internal high-strength anti-fatigue pressure regulating spring is included, along with a sealing component that is resistant to high pressure and aging. It fully adapts to the harsh working conditions of construction sites, such as high temperatures, dust, and high levels of oil impurities. Whether it is continuous earth excavation over a long period or intermittent operation in a confined area, the valve body can maintain stable overflow pressure reduction performance, reducing the probability of equipment failure and downtime.

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.