A physical object for storing energy, and which after discharge may be recharged.

A dynamic compressor in which the gas is accelerated by the action of a bladed rotor and where the main flow is along the rotation axis of the rotor.

A dynamic compressor in which one ore more impellers accelerate the gas and where the main flow through the impeller is radial.

A gravity separator where two liquid substances separates and where the substance with the less gravity can be skimmed off.

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 tank or vessel in which a process stream is charged or pumped and where lighter products flash off or vaporize and are drawn off at the top. The remainder heavier fractions are drawn off at the bottom of the vessel.

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 positive displacement compressor in which forced reduction of gas volume takes place by the movement of a displacing element in a cylinder or enclosure.

A positive displacement compressor in which compression displacement is effected by the positive action of rotating elements.

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.