ZX120-5 Main Control Relief Valve

The ZX120-5 Main Control Relief Valve is a core main pressure component for industrial hydraulic systems and PU foaming equipment. Developed for medium and large-scale heavy-duty hydraulic conditions, frequent pressure fluctuations and continuous high-pressure production, it is widely applied in large insulation panel foaming lines, high-pressure industrial casting equipment and automatic hydraulic units. It performs core functions including main pressure locking, overload relief and pressure buffering, responding dynamically to oil pressure changes and eliminating common defects such as inaccurate regulation, delayed relief and system jitter caused by pressure surges. Fully compatible with complete PU Foaming Hydraulic Components, it seamlessly matches all linear mixing head hydraulic modules and adapts to low and high-viscosity PU material delivery for intermittent precision foaming and continuous mass production. Working in coordination with the Hydraulic Safety Valve, it forms a m…