The electric grease pump is vertically mounted with a nominal pressure of 4.0Mpa and has an internal relief valve: prevents the lubrication pump set from overloading. With unloading function: after the lubrication pump stops working, the oil pressure of the main circuit is removed, which is mainly used in the pressurized order thin oil centralized lubrication system.Transparent resin tank or metal tank can be installed according to requirements, or retractable oil port can be added according to the demand. The supporting distributors are: pressurized distributor and pressure relief distributor.Lubricating oil viscosity: 32-1300CST/000-00# lithium ester.