Centrifugal compressor

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

Drawn as

A trapezoid lying on its side: wide at the suction end, narrow at the discharge end, with a shaft line to the driver.

Meaning

Centrifugal (turbo) compressor (API 617): export, booster, flash-gas and recompression. Becomes centrifugal-compressor; a gas-turbine-driven train is gas-turbine-compressor.

Variants

Multi-stage casings may show several trapezoids on one shaft
Anti-surge recycle (FV with UIC/FIC) and dry gas seals are drawn around it
Look-alike: a turbine trapezoid widens in the flow direction