DB3U Series Rexroth Electro -Hydraulic Pilot Relief Valves DB3U10 DB3U20 DB3U30

Application of DB3U20N-3-30B/315G24NZ5L pilot relief valve in the system: oil port two-way relief valve is used to protect the oil cylinder or motor from overload Direct acting relief valve is generally only used in low pressure small flow system or as a pilot valve. Medium and high pressure systems use pilot operated relief valve The pilot operated relief valve consists of a main valve and a pilot valve. The pilot operated relief valve has the following functions in the hydraulic system: 1. In the constant displacement pump system, it can stabilize the output pressure of the system. Since the constant displacement pump cannot be adjusted, the hydraulic system mainly relies on the relief valve to adjust the output pressure of the system