TS EN 12723

TS EN 12723 is a terminology standard for liquid pumps and their associated installations, covering the general terms, definitions, quantities, letter symbols and units used in this field. Its role is to give designers, manufacturers, operators and contractors a common technical language so that pump-system communication is clearer and more consistent.

A common language for pump systems

The scope of the document extends to concepts related to the flow of liquids through both rotodynamic pumps and positive displacement liquid pumps. That distinction matters because these pump families work on different operating principles and are discussed differently in engineering practice. As a terminology standard, it aligns the meaning of the terms and the way quantities are named, rather than setting performance limits or test requirements.

In general technical context, this kind of document helps standardize how engineering quantities such as flow rate, pressure, head, efficiency and related measures are expressed through symbols and units. That makes drawings, product data, operating instructions and training material easier to interpret across the supply chain. The standard also includes a definition of a liquid pump, while explicitly not dealing with terminology for the component parts of rotodynamic and positive displacement pumps and installations.

• Scope: terms, letter symbols and units related to liquid flow
• Pump families: rotodynamic and positive displacement liquid pumps
• Application: pumps and associated installations
• Purpose: improve shared technical communication between designers, manufacturers, operators and builders
• Exclusion: terminology for individual component parts