A 'device' that is providing diversion of something from an expected course or direction.

A physical object that is an opening in a barrier and a removable physical object that can block the opening.

Is a pump, flow control, and accessory instrumentation packaged in a frame that feeds a set amount of treatment chemicals, additives, or neutralizing agents into a waste, water, or industrial process stream at a measured and controlled rate.

A block and bleed valve that is incorporating two seats, each of which provides a seal, and a means of venting the space between the seats. The seats may isolate with the pressure differential acting in the same or in opposite directions depending on the design.

A valve that is intended for subsurface control/check operation.

A drain is the primary vessel or conduit for unwanted water or waste liquids to flow away

A drain port is a collection port that can be installed in pressure sensing lines for transmitters, steam lines, etc. to be able to remove liquids from the system that otherwise would create problems for the instruments.

A 'liquid outlet port' that allows liquid to leave a container under gravity

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 physical object that provides rotational or reciprocating energy to driven equipment.

A power transformer of which the magnetic circuit and windings are not immersed in an insulating liquid.

Is a machine or engineered system that removes moisture from materials and products using heat energy transfer through convection, conduction, radiation methods or adsorption technology in order to lower product moisture content to specified levels.

A physical channel that acts as a conduit for fluids, gases, pipes or cables to transfer from one point to another.

collection of conduits for the underground routing of electric and telephone lines, as well as other utilities, protected by a concrete encasement

A Duct Heater is a self contained heater designed to be installed in the field in an air stream of a duct system, external to the air moving unit.

A 'detector' for measuring the velocity, mass, charge, flight direction, and number of dust particles in space.

An electrical conductor that is a busbar used for earthing.

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 detector intended to detect a leakage current to earth.

An electrode that is an earth electrode consisting of a metal plate buried in the ground.

An electrical conductor that is used to connect the earthing system to structure.

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.