GVO 25/221161 25221161 Auxiliary Relief Valve Pressure Relief Valve Hydraulic

Product Specification

GVO 25/221161 25221161 Auxiliary Relief Valve Pressure Relief Valve Hydraulic Safety Valve JS130 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

Compatible with the JCB JS130 medium-duty excavator's auxiliary relief valve (commonly known as the auxiliary cannon or branch overload valve). A 1:1 replica of the original valve body specifications, with threads, oil passages, and sealing grooves precisely matched to the branch valve holes of the distribution valve. Direct insertion installation requires no grinding or modification.

1. The valve core and valve sleeve are mirror-polished with high precision, ensuring the sealing surface is resistant to hydraulic oil impurities and metal filings. High-pressure operation ensures sensitive opening and closing response, preventing premature pressure release and continuous internal leakage losses.

2. Double-layer O-ring composite seal prevents internal and external leakage. An internally built-in high-temperature alloy pressure regulating spring resists fatigue deformation under long-term high-temperature and high-frequency impact conditions, offering superior durability compared to ordinary aftermarket valves. A universal replacement for multiple brand models, suitable for municipal infrastructure and long-term heavy-duty construction in small mines.

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.