TS EN 736-3

TS EN 736-3 is a terminology and definitions standard for valves, focused on the technical language used to describe them. It supports a common vocabulary for valve-related discussions covering pressure, temperature, dimensions, design, flow characteristics, operation, and tests, helping different valve types and application areas be described in a consistent way.

Technical scope and the way the terms are organised

The standard’s role is to define the key concepts used when speaking about valves. Its purpose is not to prescribe how valves are built or to set performance limits, but to ensure that the expressions used in technical documentation mean the same thing across the industry. Concepts linked to operating pressure and temperature, dimensional description, design features, flow behaviour, operating functions, and test-related language are brought into a shared terminology framework. For some items the standard provides its own definition; for others it points to definitions established in other standards.

Why this vocabulary matters in valve engineering

In general technical practice, valve terminology matters because terms such as body, closing element, sealing arrangement, connection type, and flow direction must be understood consistently. That consistency becomes especially important when comparing catalogues, specifications, and test documentation from different manufacturers or projects. Terminology standards therefore serve as reference documents for technical clarity rather than as test or design standards. TS EN 736-3 provides that common conceptual framework for valves.