A physical object that by the fusing of one or more of its specially designed and proportioned components, opens the circuit in which it is inserted by breaking the current when this exceeds a given value for a sufficient time.

A plug capable of being melted and fused.

An 'equipment class' that is a class of devices whose members normally is a part of the outfitting of a galley.

Galvanic isolation is the principle of isolating functional sections of electric systems so that charge-carrying particles cannot move from one section to another.

A chromatograph where gas is injected directly into one or more separation columns.

An analyser which analyses the composition of gaseous mixture with two or more components.

A static device generating centrifugal force from an incoming flow which separates solid or liquids from a gas of a different density.

A detector that is intended to sense the presence of a specified concentration of a gas.

A distributor intended to distribute or redistribute a vapour.

An internal combustion engine that is a reciprocating engine in which gaseous fuel is mixed with air to form a combustible mixture in a cylinder which is fired by spark ignition.

A chromatograph where a liquid sample is injected and evaporated and subsequently carried to one or more separation columns.

A turbine that compresses air which is then mixed with fuel for combustion and expansion through a turbine section to generate relatively high power output for either mechanical drive or power generation.

A circuit-breaker in which the arc develops in a blast of gas.

A seal that is one or more closed loops of deformable material used between mating surfaces which have only very limited movement relative to each other.

A control valve that is a gate valve and an actuated valve.

A valve that is a valve where the closure member is a gate or disc with a linear motion parallel, or nearly parallel, to the plane of flat seats, which are transverse to the direction of flow.

A detecting instrument that is used for measuring or testing.

A physical object that is a casing with an arrangement of two or more gear-wheels transmitting rotating motion from the input shaft to the output shaft.

A process instrument that records values represented by the input signal(s).

A control valve that is a globe valve and an actuated valve.

A valve that is a valve where the closure member is a disc or piston operating with linear motion normal to the flat or shaped seat.

A separator that is based on the difference in specific gravity for the substances to be separated.

A system that injects grease for lubrication or sealing.

Is a plumbing fixture or vault installed in the wastewater drainage system to intercept and remove fats, oils, and greases.

Is a framework of metal bars or wire which is placed in front of something. Often a terminal unit for delivering supply air to a room or for collecting extract air from a room.