What are different types of orifice plates? State their uses.

Different orifice plates are:

1. Concentric2. Segmental3. Eccentric

1. - Concentric: These plates are used for ideal liquid as well as gases and steam service. Concentric holes are present in these plates, thats why it is known as concentric orifice.
2. - Segmental: This plate has hole in the form of segment of the circle. This plate is used for colloidal and sherry flow measurement.
3. - Eccentric: This plate has the eccentric holes. This plate is used in viscous and sherry flow measurement.