Air Conditioning, Ventilation, Heating, Transport Systems, Light, Power, Safety
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  • Introduction to pumping stations
    Packaged pumping stations are installed where the gravity drainage of surface water, wastewater or sewage is not possible. They 'lift' the liquid concerned to the requisite height, either into the drains or a septic tank. For this reason they are also known as lifting stations. Pumping stations typically consist of one or more submersible pumps...
    Guidance, 07 December 2012
  • Introduction to floor drain outlets
    Floor drain outlets are typically made from grade 304 or 316 stainless steel or aluminium. They are suitable for surface drainage in commercial kitchens, and industrial food production, pharmaceuticals production and plant room areas. Height-adjustable gullies can be selected to suit particular flooring finishes, whether resilient / flexible...
    Guidance, 10 December 2012
  • Introduction to extraction arms
    Dust and fume extraction arms are specified in the manufacturing and industrial sectors to remove harmful materials from the working environment, to protect the health of operatives. The size of the extraction arm will vary on the application: for an automotive production line, a long flexible arm will be required; whereas a desktop laboratory...
    Guidance, 07 December 2012
  • Introduction to packaged plant rooms
    Packaged plant rooms are self-contained prefabricated enclosures that house HVAC, power or communications equipment in a single centralised facility. Mechanical and electrical services are integrated into a single containerised or skid-mounted unit, which is manufactured offsite. It is then delivered fully assembled, or in kit form for sites with...
    Guidance, 07 December 2012
  • Introduction to building services valves
    A wide range of valves is available for controlling the flow of cold water, hot water, air and steam in heating, air conditioning, ventilation and water supply systems. Pressure balancing valves (PBVs) measure and balance flow rates in heating and cooling systems, ensuring that the desired rate is achieved irrespective of any pressure changes...
    Guidance, 07 December 2012
  • Introduction to grease / fat traps and separators
    Grease traps and separators remove fats, oil and grease (FOG) from grey water. They are installed in restaurants, fast food outlets and other commercial kitchens to prevent drainage pipes from becoming blocked. Grease settles at the bottom of the trap, from where, depending on the system, it is either removed by hand or consumed by...
    Guidance, 10 December 2012
  • Introduction to chillers
    Chillers are compressor-based cooling systems that are similar to air conditioners except that they cool and control the temperature of a liquid instead of air. Precision air conditioning chillers enable close control of temperature and humidity in data centres, IT facilities and equipment rooms. Process cooling chillers ensure accurate...
    Guidance, 07 December 2012
  • Introduction to ventilation louvres
    Ventilation louvres provide external weather protection to supply and exhaust duct openings. They are typically used in large commercial or industrial buildings where there is a need for a constant supply of air. Fixed louvres are designed to prevent rain from entering the building, while allowing moisture and air to escape from inside. Adjustable...
    Guidance, 07 December 2012
  • Introduction to smoke / fire / air vents
    Smoke, fire and air vents are used for the extraction and ventilation of air or smoke from a building. They are often referred to as automatic opening ventilators (AOVs). During a fire, they open to vent smoke out of the building and control the spread of fire. They are linked to fire systems, so that they will work automatically if flames or heat...
    Guidance, 07 December 2012
  • Introduction to water heaters
    Water heaters are used to provide a continuous supply of hot water, which is stored in an insulated tank. They are available for domestic / residential applications as well as larger commercial or public buildings. Vented water heaters rely on a volume of stored cold water, usually kept in a plastic tank, to feed the hot water storage cylinder...
    Guidance, 07 December 2012
  • Introduction to air conditioners
    Air conditioning equipment can form part of HVAC systems in commercial, industrial, leisure and residential settings. Air-con plant may be for cooling only, or provide heating and cooling as required. Comfort air conditioning is used to control temperature and air quality in offices and public buildings, providing a comfortable work environment...
    Guidance, 06 December 2012
  • Introduction to fabric ducting
    Fabric / textile ducting is an alternative to traditional steel or aluminium ductwork. Fabric ducting was developed as a draught-free air distribution system. It suits applications with a hygiene requirement, such as industrial or laboratory environments, or where the indoor air has to be stable, such as sports halls. Permeable duct fabrics can be...
    Guidance, 10 December 2012
  • Introduction to HVAC ducting
    HVAC ducting is used in heating, ventilation and air conditioning systems to convey warm or cool air, or to extract damp or dirty air. PVC-U ducts are advantageous due to their low cost and light weight. They are often specified in flat channel sections for domestic applications where space may be limited. Flexible plastic ducting is also...
    Guidance, 10 December 2012
  • Introduction to diffusers and grilles
    Diffusers and grilles are used to provide a covering to ventilation terminals. They are typically found where air conditioning or extraction systems are installed such as in hotels, offices, schools and other public buildings. Displacement units can direct supply air in the desired direction and include fixed blade, louvred, bar and deflection...
    Guidance, 07 December 2012
  • Introduction to heat exchangers
    Heat exchangers facilitate the transfer of heat from one medium to another, and in the building environment they are typically used in services such as heating, refrigeration / cooling and air conditioning. In process engineering, heat exchangers can be used in power generation, chemical, petrochemical and natural gas processing, and sewage...
    Guidance, 07 December 2012