A pressure transmitter where pressure is applied to one side of the sensor while the other side has a vacuum chamber.

An electrical connector that is a fixed or free component that permits electrical connection(s) between two or more connectors where direct connection is mechanically impossible.

A propeller like device with agitational or rotational movement located in a tank to prevent the content of the tank to build component segments.

A circuit-breaker in which the contacts open and close in air at atmospheric pressure.

A cooler that is intended to use air as the cooling medium.

A physical object that is intended to process and annunciate alarms.

An electric generator for the production of alternating current and voltage.

An electric motor driven by alternating electric current.

An electric motor driven by alternating electric current.

A physical object for increasing the power of a signal.

Is an artefact intended to retrieve a material at a particular location and inserted into something so as to test its conditions.

A detecting instrument for recording wind speed, and possibly wind direction.

An attenuator is a telecommunication device that reduces the amplitude of a signal without appreciably distorting its waveform. Attenuators are usually passive devices. The degree of attenuation may be fixed, continuously adjustable, or incrementally adjustable.

A physical object that is automatic and designed to initiate the operation of circuit-breakers and/or disconnectors in a substation according to a specific programme.

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 detecting element that is intended to detect axial displacement.

A transmitter measuring an axial displacement and generating a standardized output signal representing the axial measured displacement.

Is a gas flow damper intended to adjust an air flow rate through a duct.

A ball valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A direct current power supply unit intended to supply stabilised DC electric power according to specified levels and tolerances.

A direct current power supply unit for charging batteries.

An artefact which is a stack or an assembly of heavy-duty valves intended to be attached to the top of the casing to control the well pressure.

A physical object intended to compress and supply air or gas at medium pressure and medium volume flow.

An indirect contact heat exchanger that is intended to heat a liquid.

A butterfly valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.