GVO 723-40-71102 723-40-72700 Pressure Relief Valve Pressure Reducing Valve Pilot Valve PC200-7 PC300-7 PC400-7 Excavator Parts

GVO 723-40-71102 723-40-72700 Pressure Relief Valve Pressure Reducing Valve Pilot Valve PC200-7 PC300-7 PC400-7 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC200-7 PC300-7 PC400-7 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 self-pressurizing pressure reducing valve (overflow valve block) designed for PC200-7, PC300-7, and PC400-7 models is the core control component of the hydraulic pilot system of the excavator. It directly determines the stability of the pressure output of the entire hydraulic pilot circuit and plays a crucial role in regulating the response speed of the entire set of actions such as digging, rotating, and moving. 

The product body is forged from high-strength alloy steel as a whole, and the valve block surface is finely ground by a high-precision grinding machine. The oil holes and flow channels are precisely bored. This ensures smooth oil flow, reduces oil resistance, and effectively reduces the risk of internal leakage caused by the impact of high-pressure oil. All internal valve cores, springs, and sealing components are matched according to the assembly parameters. The clearance between the valve core is strictly controlled, effectively preventing the damage caused by impurities in the hydraulic oil and preventing the valve from being stuck. It is suitable for harsh working environments on construction sites and can withstand the alternating pressure impact of the hydraulic system for a long time. Whether it is earthwork operations, stone crushing heavy-duty conditions, it can maintain stable pressure reduction and overflow performance, avoiding frequent shutdowns and maintenance due to premature valve damage.

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.