A stepped construction designed to enable users to move between floors or levels within a building or working area.

A physical object that is intended to mix fluid by means of diverging the flow with static obstacles or by increasing locally the velocity.

A trap that consists of a chamber into which condensed steam from steam pipes etc. is allowed to drain, and which automatically ejects it without permitting the escape of steam.

A thermodynamic turbine in which steam is made to do work by expanding so as to create kinetic energy by acting on moving blades attached to a disc or drum.

A filter that is separating solid particles from a fluid by passing the fluid through a wire mesh, screen or metal plates containing perforations or slits.

Is a thermal energy storage system that involves layering water at different temperatures within a storage tank to maximize efficiency in cooling systems.

An artefact which is a framework of poles, canvas, etc. for carrying a sick, injured or wounded person.

A distillation column intended to remove light components from a fluid.

A mechanical device capable of reducing the stroke length of a pump.

A framework that is used to add to existing steelwork, to bear the weight of extra shielding or coating or protecting pipework.

A wall, used to maintain structural integrity, and provide Shielding and Containment.

The lower enclosing surface of a room, used to support imposed loads.

Installed equipment used to provide structural support.

A wall used to maintain structural integrity, and provide separation.

An electrical connector capable of withstanding submersion to a specified depth.

the part of a power system, concentrated in a given place, including mainly the terminations of transmission or distribution lines switchgear and housing and which may also include transformers.

Is an artefact intended to collect a heavy phase by making use of gravity.

The external fabric of a building that is visible above ground.

Is an apparatus that exposes bubbles near the top of a liquid layer that enables mass transfer between the liquid and air signified by increased turbulence across the exposed surface area of the liquid.

Equipment used to direct surface water flow.

A physical object that is protecting against a large but momentary increase in the voltage of an electric circuit.

Is a vessel used in fluid systems to absorb sudden surges of fluid to stabilize the pressure in the system and prevent damage to pipes and equipment.

A check valve that is a check valve where the closure member is a disc which swings freely on a hinge and which opens automatically when flow is established and closes automatically when flow ceases or is reversed.