GVO R901162378 Main Relief Valve Auxiliary Relief Valve Hydraulic Safety Valve

Product Specification

GVO R901162378 Main Relief Valve Auxiliary Relief Valve Hydraulic Safety Valve Pressure Relief Valve Excavator Mechanical Parts

Product Description

The GVO excavator relief valve, compatible with 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 type of plug-in relief valve is the core pressure control component inside the excavator distribution valve. It adopts a threaded plug-in structure and is directly installed in the valve holes of the multi-way distribution valve. It mainly undertakes the functions of limiting pressure overflow, maintaining pressure stability, and overload protection for the entire hydraulic system of the machine. 

The valve body is made of high-quality alloy steel as the base material and is precisely formed through integrated processing on a CNC lathe. The valve core undergoes quenching, surface strengthening, and ultra-finishing treatment, resulting in a high surface hardness, excellent wear resistance, and impact resistance. It can effectively resist scratches caused by iron filings and solid impurities in the hydraulic oil, significantly reducing the risk of valve core sticking and high-pressure internal leakage. 

The valve core and valve sleeve are machined using a micron-level matching grinding process, with strict control of the mating clearance. This ensures that the valve core responds sensitively and opens and closes quickly under high-frequency pressure impacts, while also minimizing internal leakage of high-pressure oil and ensuring the excellent pressure retention performance of the system. The internal pressure regulating spring is made of high elastic alloy spring steel and undergoes shaping and fatigue strengthening treatment. It is unlikely to experience elastic fatigue and plastic deformation under long-term repeated overflow impact conditions, and the pressure setting value remains stable over a long period.

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.