152F433A is a two-position hydraulic solenoid directional valve. It is widely adopted in construction machinery, industrial hydraulic equipment and mobile machinery systems. It is used to switch hydraulic oil flow direction, control the start, stop and commutation of hydraulic actuators, featuring stable performance and reliable action.

Working medium: Mineral hydraulic oilFluid cleanliness: Comply with ISO 4406 standardRated working pressure: 21 MPaMax instantaneous pressure: 25 MPaApplicable oil viscosity: 15~68 mm²/sWorking temperature: -20℃ ~ +80℃Control power supply: DC standard voltageResponse performance: Fast commutation, accurate resetLeakage condition: Low internal and external leakageInstallation mode: Standard threaded installationWorking characteristic: Suitable for frequent repeated switching

High-precision matched valve core moves flexibly without stuck failure. High-quality electromagnetic coil has stable performance, low heat generation and long service life. Optimized internal flow channel reduces flow resistance and improves transmission efficiency. Superior sealing structure effectively prevents oil seepage and leakage. Strong vibration resistance, stable operation in harsh working conditions. Compact structure design saves installation space, easy for assembly and wiring. Reasonable internal structure, low failure rate and convenient daily maintenance.

Clean oil ports and internal oil passages thoroughly to remove impurities before installation. Install the valve and fasten threads with specified torque, avoid excessive force causing thread damage. Connect hydraulic pipelines strictly according to oil flow direction. Disconnect power supply in advance during wiring, connect control wires in accordance with regulations and fix wiring harness firmly. Recheck all assembly positions to ensure firm connection after installation.

Carry out no-load trial run after installation completion. Slowly inject hydraulic oil and check all joints for leakage. Start formal operation after confirming no abnormal situation. The valve completes rapid oil circuit commutation when energized, and returns to original state reliably after power off. Keep hydraulic oil clean during daily use, replace filter elements regularly. Overpressure and overvoltage operation are strictly prohibited. Fully release system pressure before equipment maintenance and shutdown.

Regularly inspect valve body and connecting parts for oil leakage, replace worn sealing parts timely. Periodically check coil operating condition and circuit connection firmness. Keep valve surface clean to ensure normal heat dissipation. Unauthorized disassembly is forbidden to avoid damage to internal precision components.

All installation, wiring and maintenance work must be implemented after power cut and complete hydraulic pressure relief, to prevent electric shock and high-pressure fluid injury. Operators shall abide by safety operation specifications. Keep the product away from high temperature heat sources and corrosive substances. Stop using immediately once abnormal heating, abnormal noise and insensitive commutation occur, and arrange professional inspection and repair in time.