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Aluminium
Aluminium
Ambient condition
“Ambient conditions” is a set of parameters used by designers for dimensioning ventilation and cooling systems.
Anaerobic
Anaerobic conditions under wastewater transport and treatment imply that neither nitrate, sulphate nor oxygen are present for the decomposition of organic matter.
Anoxic
Anoxic conditions, as for anaerobic conditions, indicate the absence of pure oxygen. However, compounds such as nitrate or sulphate can be present under anoxic conditions.
ATEX
ATEX is an abbreviation of a French term used to denote an explosive atmosphere.
Axial fan
An axial fan is a type of fan where both motor and wings are mounted directly on the axle.
Back-to-back seal
A back-to-back seal describes two shaft seals mounted back-to-back to provide a higher level of safety and reliability.
Backflow
The flow of piped medium in the direction opposite to normal flow is called backflow. It is caused by a difference in water pressures.
BACnet
BACnet is a data communication protocol for Building Automation and Control Networks.
Baffle
The term baffle covers a flat board or plate, deflector vanes, guides, grids, gratings or similar devices constructed or placed in flowing water, wastewater or slurry systems.