The terminology used to describe exhaust fumes extraction systems can be complex for those who are not experts in this specific field.
With this article, we provide you with a glossary of the most common and significant technical terms relating to exhaust gas extraction systems.
Read on to find out more.
Exhaust fumes extraction: the most common terms
The installation of an exhaust fumes extraction system is essential in a working environment, such as a mechanical workshop and repair shop where vehicle motors are often switched on releasing exhaust gas into the environment. Exhaust systems have to extract harmful substances by conveying the gases from the exhaust point (the muffler) to the outside, in order to maintain the working environment healthy.
Let’s go further with this important topic: the most common terminology used in the field of exhaust fumes extraction systems.
Fixed extraction systems
The main characteristic of fixed systems is that they require permanent installation. These systems involve one or more flexible hoses equipped with a fan through which the exhaust gas is extracted and conveyed to the outside.
Fixed extraction systems are highly recommended for specific area dedicated to vehicles inspection/repair.
Sliding extraction systems
Sliding systems As not all the engines of the vehicles in the workshop will be started at the same time, a pair of sliding elements can cover many work areas by being slided to the required working place. They consist of an aluminium extractor rail on which the sliding elements run that can cover several working area: hose-holding trolleys, hose reels, and the GTL arm .
When the extraction is not needed, one of the sliding system main advantages is that technicians can keep working above the area without creating an obstacle or hindering work; all the sliding elements (trolley, hoe reels or GTL arm) can be moved along the channel, where extraction is needed, thus optimising the available space.
Underfloor systems
The underfloor system involves a fixed pipe system housed under the floor.
Underfloor systems are divided into two types:
- the first is the one with lodged hoses under the floor, which are extracted at the time of aspirating the fumes;
- the second has hose-holding bends grafted to the floor traps, then a centralized suction expel the exhaust into the atmosphere
A centralised fan will be used to convey the gases from different extraction points and spread them to the outside.
Mobile or stand-alone extraction systems
Mobile or stand-alone systems are very flexible solution, suitable for small workshops.
These mobile units are available in different models and can be easily moved to different work areas.
To convey the exhaust gases to the outside fans have to be connected to exhaust hoses.
Exhaust gas extractor
The exhaust gas extractor is an important part of the extraction system: choosing the right extractor model is crucial to make the exhaust system efficient and functional.
In order to increase the extraction system performances (more functional and faster); the gas extractors can be connected to a switchboard to control the start and stop of the fans, by microswitches on reels or by remote control. That increase significantly the technicians productivity
Hoses
Hoses are used to convey the gases extracted from the muffler to the exhaust fan then to the outside.
Different types of hoses of an extraction system:
- fixed ones (in fixed extraction systems)
- flexible ones (in fixed or mobile extraction systems)
Flexible hoses are connected to the nozzles. There are different versions oh hoses (e.g. Different diameters) resistant from 200°C up to 1000°C. Hoses are connected to nozzles that can be selected among a wide range of models.
Touchless universal arm
The arm with touchless technology is a self-supporting arm supported by a sophisticated system of springs and clutches, which allows it to be positioned behind the vehicles muffler without touching it.
GTL arms can be tailored to serve a specific working area (stationary version for wall or high level mounting) or to cover multiple working bays (sliding track version).
This is a universal solution, which eliminates the need for specific nozzles. This means a significant saving on adapters costs, which then become “superfluous”.
Nozzles
The exhaust gases, leaving the muffler, are collected inside the exhaust gas nozzles , then conveyed to the exhaust fan.
Nozzles are fitted on the vehicle muffler or close to it (e.g. GYNMA version that is mounted in a trolley). Nozzles have to be connected to the hoses on one side and to the vehicle muffler on the other, to extract the gases and ensure that the working environment is not contaminated. The mufflers of different vehicles have very different sizes and shapes, which means that the nozzles must also have different shapes and sizes to suit the mufflers and the main vehicle models.
Hose reels
Reels are used to coil hoses. There are several types of reels:
- mechanical reels
- mechanical reels with fan
- electric hose reels
- electric hose reels with fan
The reels can also be equipped with high-extraction systems
When deciding to install an exhaust fumes extraction, it is important to rely on an experienced supplier. Designing the best solution allows you to install a functional, high-performance system that integrates into the different working areas, facilitating and not hindering the work of workshop technicians.
WORKY guarantees the highest quality of the offered products, an accurate and careful design, thanks to its specialised technicians, and guide you to the right choice of the components that make an exhaust gas extraction system performant and in line with the real needs of the workshop.
If you have any questions or need advice on your extraction system configuration, please do not hesitate to contact us: book a free, no-obligation consultation with our experts!
