Pressure control valves are used in dual-line centralized lubrication systems in combination with hydraulic directional valves or pressure control valves to increase pipeline pressure. This allows for relatively slender and long supply branches, enabling the distributor to be centrally located, ensuring reliable operation and expanding the oil supply range. Additionally, it facilitates daily maintenance checks. This valve is suitable for systems with two-stage distribution, as it increases the oil supply pressure of the first-stage distributor, enabling reliable secondary distribution.