• Welding Shops

Local ventilation extract is required when employees are exposed to high toxicity chemicals, when large amounts of dusts or welding fumes are generated, or when increased heating costs from ventilation in cold weather is an issue.

Local ventilation extract principles centre upon the air moving from an area of high pressure to an area of low pressure. The difference in low pressure is created by the fan, which draws or sucks air through the ventilation system.

In welding shop applications, fans are very much at the heart of the extract system, moving the air through the system and discharging it outdoors. The design should allow for fumes to be extracted at low level where possible.

In buildings where welding is carried out, temperature control and problems of airborne contamination become important, and the quantity of fresh air required increases. Although fresh air is usually supplied by general (natural or dilution} ventilation, the sole use of general ventilation for airborne pollutant control in welding is usually ineffective leading to expensive heat loss. It is more efficient if airborne contaminants are captured as close to source as possible.

Welding fume normally relates to the very small particles emitted during fusion welding. However gases are also generated or released, and these also form part of the 'welding fume'.

Local ventilation extract is required when employees are exposed to high toxicity chemicals, when large amounts of dusts or welding fumes are generated, or when increased heating costs from ventilation in cold weather is an issue.

Local ventilation extract principles centre upon the air moving from an area of high pressure to an area of low pressure. The difference in low pressure is created by the fan, which draws or sucks air through the ventilation system.

Industrial ventilation systems increase welding production efficiency with cleaner air, as well as a safer, healthier working environment.

The use of mechanical ventilation to extract welding fumes will centre upon the amount of fume generated, and the toxicity hazards to the welders. This is influenced by the types of materials being cut or welded, the process parameters (increasing energy input to the process normally increases fume), the duration and frequency of the actual process in operation, the operating position and location, as well as the general ventilation and air movements in the area.

Elta Fans provide a variety of fans for welding shop applications, ensuring fumes and gases are discharged effectively, so for more information, please look at examples of typical products that could be used, or alternatively, please contact us to discuss your specific application requirement.