GVO 709-90-71700 7099071700 Pressure Relief Valve Lifting Valve Hydraulic Safety Valve PC1250-11 Excavator Mechanical Parts

GVO 709-90-71700 7099071700 Pressure Relief Valve Lifting Valve Hydraulic Safety Valve PC1250-11 Excavator Mechanical Parts

Product Description

The GVO excavator relief valve, compatible with PC1250-11 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 PC1250-11 is the main mining excavator. During operation, the hydraulic system is constantly exposed to high-pressure shock environments. The internal springs of the relief valve are prone to fatigue failure, and the sealing surface of the valve seat is easily eroded and worn by impurities in the hydraulic oil, directly causing insufficient pressure in the entire machine and affecting the efficiency of mining operations.

This model of relief valve uses high-toughness alloy springs. After tens of thousands of pressure cycle fatigue tests, the set pressure value of the valve is not easily reduced under long-term high-frequency opening and closing conditions. The valve body threads are processed by precise CNC machining, and the sealing groove structure is optimally designed to prevent high-pressure hydraulic oil from leaking from the threaded joint position. Each finished product will undergo pressure calibration and opening/closing performance testing on a professional hydraulic test bench before leaving the factory, ensuring that the opening pressure and return pressure fully match the original factory parameters of the PC1250-11. Whether it is the main relief valve or the overload relief valve version, they can be adapted to the maintenance and replacement of the PC1250-11 distribution valve assembly. They are available in stock and can be supplied stably. It is a cost-effective replacement accessory solution for mining maintenance enterprises and parts suppliers.

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.