Gas turbine

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

Drawn as

A compressor trapezoid (narrowing), a small combustor circle, and a turbine trapezoid (widening), on a common shaft, with air in and exhaust out.

Meaning

Gas turbine driver (API 616). Not modelled alone: with a generator it becomes gas-turbine-generator, and with a compressor it becomes gas-turbine-compressor.

Variants

Many legends draw a box with "GT"
Two-shaft turbines show a separate power turbine trapezoid