GVO R930052892 R900936718 Main Relief Valve Auxiliary Relief Valve Safety Valve Pressure Relief Valve Excavator Mechanical Parts
Excavator main relief valve
,Auxiliary relief safety valve
,Mechanical pressure relief valve
GVO R930052892 R900936718 Main Relief Valve Auxiliary Relief Valve Safety Valve Pressure Relief Valve Excavator Mechanical Parts
| Brand Name | GVO |
| Place of Origin | Guangdong,China |
| Product type | Excavator relief valve |
| Model | R930052892 R900936718 |
| Part name | R930052892 R900936718 |
| Warranty | 6 Months |
| Payment | TT..Paypal |
| Package | Carton box |
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
The multi-way valve is equipped with a dedicated threaded cartridge-type pressure control valve, which is widely used in the main control distribution valve of excavator construction machinery. It mainly realizes the core functions of pressure limitation in the hydraulic circuit, overload overflow, and stable pressure relief. It directly controls the maximum working pressure of the corresponding hydraulic circuit, profoundly influencing the digging force, lifting load capacity, and action response performance of the entire machine.
The valve body is made of high-strength alloy steel substrate. The entire set of components is processed as a single unit by high-precision CNC equipment. The valve core undergoes quenching hardening and surface strengthening treatment before ultra-precision mating grinding. The product has a high surface hardness, excellent resistance to impact and wear, and can withstand scratches caused by iron filings and solid impurity particles in the hydraulic oil. It significantly reduces the probability of valve core sticking and high-pressure internal leakage.
The valve core and valve sleeve adopt a micron-level mating grinding process. The internal clearance is strictly controlled to ensure that the valve core responds sensitively and quickly in frequent high-pressure impact conditions. At the same time, it can minimize high-pressure oil internal leakage, ensuring the pressure retention effect of the cylinder. An alloy high-tensile pressure regulating spring is configured internally, which undergoes shaping treatment and multiple fatigue cycle tests. It is not prone to deformation under continuous repeated overflow impact conditions, and its elastic fatigue resistance is slow. The pressure setting value of the equipment is less likely to drift over a long period of operation.
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.
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