Bosch Rexroth DR20-5-42 100YV Hydraulic Relief Valve

Bosch Rexroth DR20-5-42/100YV hydraulic relief valve is a pilot-operated pressure-reducing valve in the DR20 family, designed to regulate the pressure in a secondary hydraulic circuit by diverting flow when the preset pressure is reached. The model designation includes the 100YV porting code, aligning with Rexroth’s standard connection pattern for DR20-5-series valves and matching related configurations such as 100YV variants in this family. Built for industrial hydraulic service, it serves as a precise, reliable pressure-control component suitable for OEM equipment or retrofit projects that require stable secondary-circuit pressure. By leveraging a pilot-operated design, the DR20-5-42/100YV delivers tight pressure regulation across varying flow conditions, helping protect circuit components and maintain consistent performance in hydraulic systems.