This is a high-grade integrated hydraulic control valve assembly. It is specially designed for heavy-duty industrial machinery, engineering vehicles and precision hydraulic systems. It integrates flow regulation, one-way locking and pressure stabilization functions, featuring compact structure, stable performance and high control precision to meet complex hydraulic control requirements.

Working medium: Industrial mineral hydraulic oilFluid cleanliness: ISO 4406 standardRated working pressure: 21 MPaMax allowable working pressure: 26 MPaApplicable oil viscosity: 15~70 mm²/sWorking temperature range: -20℃ ~ +85℃Adjustment mode: Manual fine tuning controlFunctional type: One-way flow control with check functionInternal leakage: Ultra-low leakage rateConnection form: Standard port connectionApplicable condition: Long-term continuous heavy-load operation

Integrated multi-functional design saves installation space and simplifies pipeline layout.High-strength forged valve body, excellent pressure resistance and long service life.Precision lapped internal core parts, flexible action without jamming.Built-in check structure effectively prevents oil flow backflow.Optimized flow path minimizes pressure loss and improves system efficiency.High-performance sealing components ensure zero leakage under long-time pressure.Strong shock resistance and environmental adaptability for severe working sites.Easy field adjustment, stable output and low failure rate.

Clean all oil ports and inner passages thoroughly to remove impurities before installation.Install the valve strictly following the marked oil flow direction.Fasten connecting interfaces with standard torque, avoid excessive force causing deformation and thread damage.Fix the assembly firmly and connect matched hydraulic pipelines reliably.Recheck overall assembly status and sealing performance after installation.

Carry out low-pressure no-load test after installation, inspect all sealing positions for leakage.Slowly adjust control components to set required flow speed and working state.Keep hydraulic oil clean during formal operation, replace filter elements regularly.It is forbidden to exceed the rated pressure limit for overload operation.Completely release internal system pressure before equipment stop and maintenance.

Regularly check connecting ports and sealing surfaces for oil seepage, replace worn seals timely.Periodically verify flow control accuracy and make fine calibration if deviation exists.Keep outer surface clean to avoid dust and oil sludge affecting heat dissipation and use.Non-professional disassembly is strictly prohibited to avoid damage to internal precision structures.

All installation, debugging and maintenance operations must be performed after equipment shutdown, power cut and full hydraulic pressure relief, to prevent personal injury from high-pressure hydraulic fluid.Operators shall follow standardized safety operation procedures.Keep the product away from high-temperature heat sources and corrosive substances.Stop using immediately once abnormal noise, flow fluctuation and oil leakage occur, and arrange professional inspection and maintenance in time.