GVO 60357921 52100728-5064 150602080020A011 Auxiliary Relief Valve Control Valve

Product Specification

GVO 60357921 52100728-5064 150602080020A011 Auxiliary Relief Valve Control Valve Pressure Relief Valve SY750 Excavator Parts

Product Description

The GVO excavator relief valve, compatible with Hitachi 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

The GVO SY750 relief valve is a core pressure protection component specifically developed for the hydraulic system of the SANY SY750 large excavator. It precisely matches the original multi-way valve mounting base and is meticulously machined according to the original factory structural parameters, allowing for direct, non-destructive replacement installation without requiring modification or adjustment of the valve block.

The main body of the product is forged from high-strength alloy steel. The valve core's mating surfaces undergo precision honing and hardening treatment, strictly controlling the mating clearance. This effectively suppresses internal leakage under continuous high-flow, high-pressure operation, stably locking the system's standard working pressure and specifically addressing common faults in SANY SY750 equipment, such as weak operation, load pressure drop, overflow noise, and stalling under heavy load.

The internal pressure regulating spring of this relief valve is made of high-temperature resistant, fatigue-resistant alloy material. It withstands long-term high-pressure reciprocating impacts without easily experiencing spring force attenuation or deformation, maintaining a stable pressure regulation range and preventing pressure drift and uncontrolled pressure leakage after a period of equipment 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.