Gear Oil Pump Product Feature: G4-4 hydraulic double pump is a kind of double pump device commonly used in hydraulic system. It usually consists of a main pump and an auxiliary pump. The main pump usually has a large flow and pressure output capacity and is used to provide the main hydraulic power required by the system. The auxiliary pump usually has a small flow and pressure output capacity and is used to provide the auxiliary hydraulic power of the system, such as the return of the hydraulic cylinder and the operation of the auxiliary functions. The G4-4 hydraulic double pump can realize the working mode of the main pump and auxiliary pump through the control valve. You can choose to start both the main and auxiliary pumps to provide greater flow and pressure output. You can also choose to start only the main pump or the auxiliary pump to adjust the flow and pressure according to the system needs. Huai'an Youbang Hyd…