Kobelco YN22V00002F1 Port Relief Valve Assembly

The YN22V00002F1 is a port relief valve assembly designed for Kobelco hydraulic excavator main control valve systems. It functions as a pressure-limiting component to protect hydraulic circuits from overpressure conditions during operation. The valve features an anti-rust alloy housing with a wear-resistant internal spool, engineered for oil-resistant, anti-vibration, and dustproof performance in quarry and construction environments. This component replaces Kobelco OEM part numbers YN22V00002F1 through YN22V00002F9, HME10012, KZ000764, 2436R683F1, 2436R683F2, KRX16EK22, and V9606259181. It is installed in the main control valve block to regulate hydraulic pressure for boom, arm, bucket, and travel circuits. Direct replacement for specified Kobelco SK-series models without modification.