A Dosing Pump is a low-volume pump with controllable discharge rates that is used to inject additives or difficult-to-mix fluids into mixing, pumping, or batch/tank systems. Dosing pumps are usually made from plastic, thermoplastic, or stainless steel and feature mounting holes or accessories. It is a positive displacement pump, is designed to inject a chemical or another substance into a flow of water, gas, or steam. Dosing pump is designed to pump a very precise flow rate of a chemical or substance into either a water, steam or gas flow.