Dosing pumps are positive displacement pumps that are designed to inject chemicals into steam, gas, or water. Over the years, they have become an indispensable part of integrated dosing systems that enable automated dispensing of chemicals. Dosing technology is used for the production of chemicals and products as well as for their economical and ecologically beneficial application in manufacturing industries. A significant number of users of dosing technology are waterworks and sewage treatment plants as well as swimming pools for conditioning the pool water. For selection of the dosing pump during planning and all the more for installation and operation, the local rules regarding electrical installation and handling of the chemicals must be observed. It is recommended to plan and install all additional fittings required to increase accuracy and operational reliability.