A seal between two substance created of a impenetrable membrane.
A pressure tank divided into two areas: the upper is a fluid storage area and the lower is a gas pressure area with the two areas separated by a diaphragm.
A gauge that is intended for measuring and indicating pressure differences.
A pilot switch intended to switch or give an on/off signal when the measured differential pressure has reached a pre-set value.
A pressure transmitter that is producing a standardized output signal dependent of a received pressure difference signal.
A physical object that contains a diverging channel-shaped chamber in which part of the kinetic energy of the fluid is converted into pressure energy.
A heat exchanger that allows contact between the hot and cold fluids.
An electric generator for the production of direct current and voltage.
A switchgear and controlgear that is an insulated panel carrying terminals, fuses, etc, for controlling a number of subsidiary electrical circuits.
A device used to translate print media into computer language so that a document can be viewed and read later on.
A heat exchanger that consists of two co-axial pipes of different sizes, where one fluid passes though the inner pipe and the other fluid passes through the space between the inner and the outer pipes.
A drier is a physical object that is intended to remove absorbed or adsorbed liquid or water vapour below saturation state.
An artefact which is intended to operate and supply power to an artefact (instrument) with an edged or pointed end for making holes in hard substances by revolving or by a succession of blows.
A power transformer of which the magnetic circuit and windings are not immersed in an insulating liquid.
An electrode, which is the conductive part, that can be embedded in a specific conductive medium, e.g. concrete or coke, in electric contact with the Earth.
A resistance through which the neutral pint of a supply system is earthed, in order to limit the current that flows on the occurrence of an earth fault.
An energy transducer that transforms non-electric energy into electric energy.
An electric machine for transforming electric energy into mechanical energy.
A 'control panel' intended for electrical apparatus.
An electrical conductor that has several power distribution points.
A starter in which the force for closing the main contacts is provided exclusively by electrical energy.
An electrical connector in which the terminals of an electricity supply are inside holes made to receive the pins of a plug.
An electronic ac converter for changing the frequency.
An electronic converter that changes direct electric current to single-phase or polyphase alternating currents.
A lift that has a chamber or compartment for moving personnel or goods.