GVO Swing Motor Main Rotary Relief Valve Unloading Valve Lovol 18 Lg16 13 Yanmar

Product Specification

GVO Swing Motor Main Rotary Relief Valve Unloading Valve Lovol 18 Lg16 13 Yanmar 17 Shantui 18 13 Mini 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

This GVO cartridge-type overload relief valve is a core safety component for the hydraulic systems of mini excavators, with a very high market share. It is precisely compatible with the Lovol FR18 mini excavator, Lingong LG13 and Lingong LG16 mini excavators, and the Yanmar VIO17 classic mini excavator. It can be used in dual functions as a main control valve, main relief valve, and swing motor overload protection valve, providing robust hydraulic pressure protection for equipment operating in confined spaces.

The product utilizes 3D scanning and mapping of original factory valve components for mold making. The valve body insertion length, external thread pitch, radial pressure relief hole location, multiple sealing ring mounting grooves, and top pressure adjusting locking bolt structure are all 1:1 matched to the original parts standard. It perfectly matches the valve hole installation dimensions of the four machine models' distribution valves. Repair technicians do not need any modification procedures such as boring, copper shims, or valve seat modification; they can simply screw it in for replacement. This significantly reduces downtime for mini excavators and has extremely high practical value for scenarios such as tight deadlines in landscaping construction, emergency repairs during indoor demolition, and rapid repairs of rented equipment.

The valve body is made of high-purity alloy steel through integral forging, rather than simple machining of ordinary solid round steel. The internal metal structure is dense, without air holes or stress defects, and can withstand the instantaneous high-pressure impact caused by high-frequency inching operation of mini excavators, pressure buildup during excavation in hard soil, and sudden stops during in-situ rotation. It avoids stubborn failures such as valve body cracking under high pressure, thread stripping and disengagement, and internal oil passage deformation and oil leakage from the source of the body material. It is highly suitable for the operating characteristics of mini excavators with frequent start-stop and large load fluctuations.

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.