Chemical injection pumps require monitoring and control due to the high accuracy of injection. The injection of a certain amount of chemical substance depends on the process of various parameters such as the pressure of the injection line, NPSH, the way of piping, etc.

The use of instrumentation equipment increases the injection accuracy and shows how the dosing pump works. Therefore, choosing the right peripheral equipment when designing an injection process becomes an effective step to increase the assurance of its correct operation.
The auxiliary equipment of chemical injection and transfer pumps are as follows:

suction valve
injection milk
Pressure control valve
safety valve
Flow equalizer
Calibration cylinder
flowmeter
valves