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Hydraulic parts SH120 travel motor relief valve
Hydraulic parts SH120 travel motor relief valve
SH120 Travel Hydraulic Motor Relief Valve
This relief valve is specifically designed for the travel hydraulic motor system of SH120 series excavators, produced by Ningbo Longerfa Hydraulic Co., Ltd.—a professional manufacturer of excavator-specific hydraulic valves and motor protection components.
Longerfa holds ISO9001 and ISO45001 certifications, with relevant patents for hydraulic motor protection technology. Each valve undergoes strict quality testing, meeting original equipment standards to ensure seamless compatibility with SH120’s travel hydraulic motor system.
As a core safety component for the travel system, its main function is to monitor the pressure of the travel hydraulic motor in real time. When overpressure occurs (e.g., uphill climbing, heavy-load travel, or sudden resistance), it promptly releases excess oil to prevent damage to the travel motor, reducer, and associated pipelines.
The valve features a wear-resistant valve core and corrosion-resistant body. It supports direct bolt-on replacement without complex system debugging, helping reduce maintenance time. Commonly used in construction, earthmoving, and road construction scenarios where SH120 excavators are deployed.
Longerfa’s SH120 Travel Hydraulic Motor Relief Valve ensures stable pressure protection for the excavator’s travel system, working reliably in harsh operating environments such as dust, vibration, and temperature variations.


