GVO 723-40-56900 723-40-57200 Pressure Relief Valve Unloading Valve Safety Valve PC200-7 PC200-8 PC240-8 PC220-7 Excavator Parts

GVO 723-40-56900 723-40-57200 Pressure Relief Valve Unloading Valve Safety Valve PC200-7 PC200-8 PC240-8 PC220-7 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with PC200-7 PC200-8 PC240-8 PC220-7 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 plug-in relief valve, compatible with PC200-7, PC200-8, PC240-8, and PC220-7 excavators, is a main pressure protection valve integrated into the distribution valve. It is also the core pressure control component of the hydraulic system for small-sized Komatsu - 7 and - 8 medium-sized excavators. It directly manages the maximum working pressure of the main hydraulic circuit of the entire machine and determines the output force of actions such as digging, lifting, and rotation.

The valve body is made of high-quality alloy steel and is formed through a single-piece precision machining on a CNC lathe. The valve core undergoes quenching hardening and precise grinding treatment, resulting in a high surface hardness and outstanding wear resistance. It can withstand the scratches caused by metal impurities in the hydraulic oil for a long time and significantly reduces the risks of valve core sticking and high-pressure leakage. The valve core and valve sleeve are processed using a micron-level precision matching grinding technique, with strict control of the mating gap. This ensures that the valve core moves sensitively under high-pressure impact and effectively controls the leakage of high-pressure oil, maintaining a stable pressure-holding effect. The internal pressure regulating spring is made of high elasticity alloy spring steel and has undergone multiple fatigue strengthening tests. It does not deform easily and has a slow rate of elastic force attenuation under repeated high-pressure relief impact conditions, making the pressure setting value less likely to drift over a long period of use.

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.