GVO RB20170220 Main Relief Valve Pressure Relief Valve Hydraulic Safety Valve

Product Specification

GVO RB20170220 Main Relief Valve Pressure Relief Valve Hydraulic Safety Valve KX36-2 KX41-2 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

GVO offers bulk stock of 923G1 4V28-0 relief valves, compatible with the Kubota KX36-2 and KX41-2 mini excavators, two popular models in the market. Sufficient inventory is maintained to support large-volume orders. All products are strictly replicated according to original factory drawings. Each relief valve undergoes high-pressure testing on a hydraulic bench before leaving the factory to eliminate defective products with jamming, pressure leakage, or leakage, ensuring consistent and stable quality.

Precision-ground valve core ensures continuous pressure locking without pressure drift. The high-precision mirror-finish valve core, combined with a balanced pressure-stabilizing spring, ensures stable pressure maintenance during high-intensity operation of the hydraulic breaker, eliminating sudden power fluctuations and soft movements, resulting in smooth and linear operation.

Hardened alloy steel valve body ensures durability and resistance in harsh working conditions. The tempered and thickened valve body, combined with multi-layer high-pressure resistant seals, is dustproof and mud-resistant, withstands high and low temperatures and continuous high-pressure cycling, and is less prone to oil leakage and pressure loss over long-term use.

Automatic overpressure unloading protects the entire hydraulic assembly. The system provides instantaneous buffering and pressure relief when the hydraulic circuit overload exceeds the limit, preventing damage to the hydraulic pump, distribution valve, and cylinder from high-pressure bursting. It solves three common problems—machine stalling, boom drop, and lack of digging power—in one go, reducing the cost of overhauling the entire machine.

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.