This flow meter can be applied to clean, sanitary, and corrosive liquids, such as water and foods, and some gases. Materials of construction are important because small amounts of corrosion or abrasion can damage the sealing surfaces and adversely affect measurement accuracy. In addition, consideration should be given to all wetted parts, including the body, rotating parts, bearings and gaskets. 

Many positive displacement flow meters are used in municipal water districts to measure residential water consumption. Considering an installed base of millions of houses and apartments with metered water service, this application represents perhaps one of the largest number of applications of positive displacement flow meters worldwide. 

Corrosive liquid applications are commonly found in the chemical industry processes, and in chemical feed systems used in most industries. However, other flow meter technologies may be more suitable for these services.