Exhaust gas extraction nozzle: models and tips

The exhaust gas extraction nozzle is an essential accessory that must be chosen carefully, because it determines the suction efficiency of the system.

There are different types and models on the market, which are divided according to their use and the type of vehicles they handle.

Want to find out more? Continue reading the article!

How to choose the exhaust gas extraction nozzle

Unless the workshop has a touchless extraction system, which we will discuss in a moment, extraction nozzles are a pivotal component. These items are fitted at the end of the pipe and serve to extract the gases directly from the vehicles exhaust, preventing them from being released in the working area.

In fact, regulations impose an obligation to remove exhaust gases from workplaces, which can be complied with by using suitable suction systems.

Since they cannot be filtered, as they are composed of too fine dust, the gases must be removed directly from the source and released outside, so that the work environment remains healthy and clean.

A judicious choice of the type of system to be installed in the premises guarantees at the same time the effective removal of exhaust gases, compliance with regulations and the optimisation of space and production efficiency in the workplace.

What elements does an exhaust gas extraction system consist of?

Excluding stand-alone systems, which have a special configuration because they are designed to be moved around the workshop, in general, gas extraction systems consist of a few basic components. Let us look at them below.

Pipes

In an extraction system, we have different types of pipes: galvanised pipes, which facilitate the fluid dynamics of the extraction and facilitate the exit of fumes from the working area; flexible hoses, which, thanks to a special construction, are resistant to high temperatures, crushproof and connects the nozzle to the actual extraction system.

Extraction nozzle

The nozzles are 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.

There are, for example, vehicles with mufflers flushed in the bumper, which will need a specific adapter, or with dual exhausts, which will need dual nozzle adapters. Or, trucks and agricultural vehicles often have mufflers located in hard-to-reach places, such as underneath the vehicle or positioned vertically. In addition, heavy vehichles, producing a greater amount of gases that reaches very high temperatures, often require specific, functional and robust systems.

The WORKY range of nozzles are equipped with a manual shutter, which allows the extraction to be partialised and makes it possible to adapt the extraction power to the actual needs, guaranteeing considerable energy and economic savings for the company.

To avoid the need for different types of nozzles, many workshops today opt for touchless extraction systems, which do not come into contact with the vehicle muffler and, as a result, doesn't need to change the nozzle depending on the vehicle being treated.

Here they are in action, in this video:

Touchless extraction systems are certainly very cost-effective, versatile and high-performance and give a modern and innovative look to the workshop, as well as making work more efficient without creating clutter, as they can be folded away when not in use.

We have discussed the advantages of contactless extraction arms in detail in this article.

Fans

Fans are specially designed to intercept dangerous emitted gases and expel them outside the workin area. They are available in various powers, to be evaluated according to the workshop's needs

In the most modern systems, the fans can be remotely controlled by operators, thanks to microswitches, radio-frequency remote controls and control panels, allowing significant time savings and increased efficiency.

Hose reels

Hose reels are historically the most widely used solution for extracting exhaust gases and serve to facilitate and speed up the recoiling of the hose so that it does not obstruct the operator. An extraction hose reel can operate with motorised or mechanical recoiling by means of a spring.

They can be installed as fixed systems, with hose reels at specific points in the workshop, or in sliding systems where they move along a track, a kind of rail by which the elements are moved in the working area.

Would you like to discover the different models of hose reels on the market? Read this dedicated article!

In this article, we have repeatedly emphasised the importance of choosing each element of the system by making due considerations regarding the real needs of the company (the vehicles handled, power requirements, available space).

Relying on an experienced supplier who can advise on the best type of system to install is the best choice to avoid wrong investments.

If you are looking for a specific extraction nozzle or would like to install a gas extraction system in your workshop from scratch, do not hesitate to contact us: WORKY technicians are at your disposal for suggestions and advice!