Depo metering pump is a pump for flow control and high precision flow metering, its working principle is mainly by an electric motor and a group of replaceable slide valve unit to achieve.

The electric motor is the power source of the pump, which converts the rotation speed of the motor output into a controllable linear motion through a high-precision gear box. This linear motion is transmitted to the spool unit, which controls the flow inside the pump body.

The spool unit consists of one or more replaceable spool valves that are responsible for controlling the individual valves and lines of the pump. When the linear motion of the motor output acts on the spool unit, the spool is in contact with one or more cams (usually one CAM controls a valve), thereby changing the flow inside the pump body. Specifically, the direction and speed of the slide valve will determine the suction and discharge flow of the pump, so the position and residence time of the slide valve will directly affect the output flow of the pump.

In practical applications, Depo metering pumps can control the flow by controlling the switch of the motor and the movement of the slide valve. Usually, the flow control is responsible for an intelligent controller, which can perform various accurate controls on the pump according to the user's requirements, such as precision adjustment, flow accumulation and metering output.

In short, the Depo metering pump, as a precision metering equipment, mainly relies on electric motors and replaceable slide valve units to achieve precise flow control and metering. Its working principle is based on the combination of mechanical drive and electronic control, while taking into account the advantages of mechanical properties and intelligent control, providing a highly reliable and accurate solution for various flow control and metering fields.