A valve that permits fluid to flow in one direction only.

A chemical treatment unit is a device or process that is employed to use chemicals, chemical reactions, or a combination of physical and chemical processes to remove undesirable contaminants and particles, neutralize harmful elements, and alter the characteristics or reactions of liquids, gases, or solids in a desired manner.

A chilled beam is a device utilizing cooling coils that are supplied with chilled water to indirectly cool room air through finned heat exchange elements inside an enclosure that mounts over an occupied space.

A chiller is a refrigeration machine or system used to remove heat from a process fluid or stream and reject it to a heat sink for temperature control of the fluid in industrial processes and building cooling applications

A mechanical switching device that at regular intervals interrupts an electric current.

A clarifier is a settling tank used to remove suspended solids by gravitational settling and produce clarified liquid as an overflow, especially the removal of flocculated solids in treated wastewater or separation of liquid-solid slurries in chemical and industrial processes.

A classifier is a device that segregates materials into multiple streams according to size, shape, density or other physical characteristics by means of air, vibration, centrifugal motion or inflow.

A compost plant is a facility that processes organic matter like food scraps, yard waste, and biosolids through controlled aerobic decomposition into fertilizer or soil amendments suitable for agricultural and gardening applications.

A physical object that is driven by a prime mover by which energy is either constantly or periodically added to an amount of gas in order to increase its pressure.

A cooler that is intended to change a vapour to liquid.

A physical object intended to contain something.

An instrument panel containing a set of indicating devices and control units required for operation of a system or part of it.

A switch intended to switch or give an on/off signal when the measured variable has reached a pre-set value.

A valve that can be used to modify (regulate) the fluid flow rate in a process control system. It usually includes an actuator, which responds to a signal from the controlling system and changes the position of the flow controlling element in the valve.

A regulator that operates automatically to affect a controlled variable by comparing the value of the controlled variable with the value of a reference variable in order to reduce the difference between them.

A physical object for moving articles or bulk material from place to place (as by an endless moving belt or a chain of receptacles).

A cooler and an air cooled heat exchanger that is a tall structure through which air circulates by convection.

Connecting with a coupling or coupler.

A lifting appliance that is a tower or derrick equipped with cables and pulleys that can lift or lower and move loads in multiple directions.

Structure to allow water or a pipeline to pass under a road/railway through a pipe or concrete tube. Typically if span greater than 12ft (3.7m) then structure is a bridge

A device that damps, typically a valve or plate (as in the flue of a furnace) for regulating the draft, or a device to stop vibration, typically a shock absorber or snubber.

a device that is used for the removal of dissolved gases like oxygen from a liquid. A deaerator plant

Is a vessel used to separate two or more components of a liquid solution by allowing the layers to settle according to density differences and then draining off the top layer while retaining the bottom layer.

A piece of equipment specifically designed to remove moisture from air.

A physical object that is the primary element of a measuring chain which converts the input variable into a signal suitable for measurement.