A device that removes air or gases (methane, H2S, CO2 and others) from drilling liquids.

A physical object intended to catch fluid droplets.

A drier is a physical object that is intended to remove absorbed or adsorbed liquid or water vapour below saturation state.

A pressure vessel located in both pump- and compressor piping systems in order to reduce residual pulsation fluctuations, as a result of discontinue operation effects, within an allowable level specified.

A distillation column intended to clean gas by washing the gas flow with water or with another liquid entering at the top of the vessel and sprayed in the gas. Typically to remove dust and small particles.

A catcher intended to catch and separate liquid slugs from a fluid stream.

A distillation column intended to remove light components from a fluid.