The YUKEN MRP-01-B-30 is a pilot-operated modular relief valve designed to regulate pressure within a hydraulic system. As a modular valve, it can be stacked with other 01 size components, such as solenoid directional valves, to create a compact and pipe-free hydraulic circuit. This valve ensures stable pressure control by diverting excess fluid to the reservoir, protecting the system from overpressure conditions. Its robust construction and reliable performance make it a staple in various industrial hydraulic applications requiring precise pressure management.