Main relief valve specification: The main relief valve is a hydraulic valve that is used to limit the maximum pressure in the hydraulic system. It is designed to protect the system components from damage due to excessive pressure. Some general specifications for the main relief valve on the DH225-7 R2 and DH220-5 excavators may include:
Maximum pressure: 34.3 MPa
Opening pressure: 28.4 MPa
Flow rate: 310 L/min
