072-558A is a high-performance hydraulic pressure control valve. It is mainly used for pressure regulation, overload protection and pressure stabilization in various hydraulic systems. Widely matched with construction machinery, lifting equipment, industrial machine tools and mobile hydraulic devices, it can effectively stabilize system pressure and avoid damage caused by overpressure.

Working medium: Mineral-based hydraulic oilFluid cleanliness standard: ISO 4406Rated working pressure: 21MPaMaximum allowable pressure: 26MPaApplicable fluid viscosity: 15~68 mm²/sWorking temperature range: -20℃ ~ +80℃Pressure adjusting range: Adjustable within standard scopeInternal leakage: Low leakage rateInstallation mode: Standard fixed mountingContinuous working performance: Support long-time stable operation

Adopt precision internal structure design, accurate pressure control and easy on-site adjustment. High-strength wear-resistant core parts, long service life and stable performance. Optimized flow passage design, small pressure loss and high working efficiency. Good sealing performance, effectively prevent external oil leakage. Strong anti-vibration capability, adapt to various harsh working environments. Compact overall structure, easy installation and convenient later maintenance.

Clean the installation base and connecting oil pipelines thoroughly before installation to remove dust, scrap iron and oil dirt. Fix the valve at the designated position with standard fasteners and fasten according to specified torque, do not over tighten. Connect the oil inlet and outlet pipelines correctly in accordance with the flow direction mark. Check all connection parts again after installation to ensure firm assembly without looseness.

After installation, conduct no-load test operation first. Slowly inject hydraulic oil into the system and check all joints for oil leakage. Adjust the working pressure to the required value according to actual use demands. Keep the hydraulic oil clean during daily operation, replace filter elements regularly to prevent internal blockage. It is strictly prohibited to adjust and use beyond the maximum pressure limit. Release system residual pressure before equipment shutdown and maintenance.

Regularly check the valve body for oil seepage and replace aging sealing accessories in time. Periodically verify pressure control accuracy and make fine adjustment if deviation occurs. Keep the product surface clean to avoid dust and oil sludge affecting heat dissipation and use effect. Do not disassemble the valve privately without professional guidance, so as not to damage internal precision parts and affect control accuracy.

All installation, debugging and maintenance operations must be carried out after equipment stops running, power is cut off and hydraulic system pressure is completely released, to prevent high-pressure hydraulic oil from causing personal injury. Operators shall follow relevant safety operation specifications. Keep the product away from high-temperature heat sources and corrosive substances to avoid performance failure. Once abnormal noise, severe heating and pressure instability occur during operation, stop using immediately and arrange professional inspection and troubleshooting.