Fume extraction

Derby College has taken a derelict Grade II listed engine shed and turned it into a 18,000m2 flagship learning and teaching centre, which includes an engineering and welding centre. Flextraction, through its distributor, Leengate Industrial Welding Supplies, supplied the fume extraction equipment for 12 new welding bays.

Flextraction specifically designed and installed its latest HPD (Hood Positioning Device) system to cater for the constricted space in the lower ground floor, which houses the welding shop and connects the old engine roundhouse and the carriage repair shops.

Each welding bay has a selfsupporting 2m long, highly flexible articulated arm attached to a wall mounting bracket with each arm having an epoxy black 100mm diameter flared hood. To discharge the fumes away from each bay, spiral galvanised sheet steel ducting was sized and proportioned to give a good conveying velocity throughout its entire length. The whole system was designed to go hand in hand with the structural set up of the building.