ventiltype

Ventiltype (German: Ventiltyp) is a term used in mechanical engineering and process industries to designate the specific type of valve used in a system. In German-language technical literature, Ventiltyp (valve type) is a standard way to classify valves by their mechanism and function, and it is often translated simply as valve type in English documents.

Valves regulate fluid flow by opening, closing, or constricting passages. Valve types are typically categorized by function (shut-off, control, check, safety/relief) and by actuation or mechanism (ball, globe, gate, butterfly, diaphragm, needle, plug). Control valves may be specified with particular trim and actuation combinations to achieve desired flow characteristics, such as linear or equal-percentage flow curves, and may be operated manually or by electric, pneumatic, or hydraulic actuators.

Selection considerations for a ventiltype include the media compatibility, pressure and temperature ratings, materials of construction, and the seat and seal materials to meet leakage and durability requirements. Design and procurement also follow standards and specifications, such as ASME/ANSI B16.34 for dimensions and pressure ratings, ISO 9001 for quality management, and national standards like DIN or API where applicable.

In practice, the term Ventiltype appears in engineering drawings, specifications, and catalogs to identify the valve family chosen for a system. Clear specification of the valve type facilitates proper selection, installation, maintenance, and replacement, ensuring compatibility with piping, actuators, and control systems.