Hitachi Excavator 4469304 Distribution Valve Overflow Valve (Main Cannon)

Specially designed to provide precise pressure relief protection for hydraulic distribution valves (main control valves) of medium and large excavators such as ZX450-3, ZX470-5G, ZX500LC-3, etc. Adopting high-strength castings, high-precision valve cores, rubber sealing rings, and pressure resistant metal shells, with a set pressure of about 32-36MPa, it has sensitive response, pollution resistance, corrosion resistance, and vibration resistance. Perfectly solves common faults such as walking weakness, continuous increase in hydraulic oil temperature and water temperature, vehicle holding, insufficient power, and decreased operating power, directly ensuring the high-pressure stable operation of the walking motor and arm/rod/rotating mechanism.