Steam turbine

ISO 10628-2 (groups 16, 17 and 20, compressors, blowers, engines) / PIP PIC001 (group 20)

Drawn as

A trapezoid widening in the flow direction, with steam in at the narrow end and exhaust at the wide end, and a shaft to the driven machine.

Meaning

Steam turbine driver: onshore and refinery pumps, compressors and generators. Not used offshore. No dedicated component.

Variants

A turbine trapezoid widens in the flow direction; a compressor trapezoid narrows