Application
              TELERGO extraction arms are designed for eff ective extraction                of welding dust and gas contamination, as well as other small
                dust particles – directly at the emission source, not allowing the
                contamination to spread in the working area and preventing from
                being inhaled by people.
              The extraction arms can be applied in any areas where the workspace                is limited. Commonly, this is the case in welding schools, where the
                welding boots are very small.
              Th e extraction arm can work as a single appliance, with its own                extraction fan, or in a group of local exhausts connected to the main
                collecting ductwork (with a central fan).
              
              Structure
              Th e extraction arm consists of following assemblies:
  - swivel    
- suction hood with a shut-off damper
 
- the supporting structure is made of the sliders inside the fl exible
    hose
Pipe segments are made of stainless steel sheet, whereas the swivel  of cast aluminium elements. Th e nominal diameter of the arms is 6’’.
  The extraction arm is equipped with a frictional joint located near  the swivel.
              Operational use
              To install the extraction arm on a wall (or supporting column)                use a wall bracket. Additionally, the wall bracket is an appropriate
                installing point for the extraction fan or the connection fi tting piece.
                
              Hood can be tilted in vertical direction and the whole arm can be
                rotated in 360 degress, providing the most useful position of the
                suction hood.
                
              Adequately adjusted frictional joint gives easy manoeuvrability with
                the arm. Th e suction hood is equipped with a shut-off damper to
                adjust the air volume fl ow.
               
              
               
              
                Suction hood
  
                  | Sort of the hood | Material | Type | Part.No | d [inch] | D [inch] | L [inch] | L [inch] | Remarks | 
                
                  |  | aluminium sheet | LSO-S | 810H45 | 6,7 | 10,8 | 4,9 | 1,4 | – replaceable inlet wire-mesh – shut-off damper
 | 
          
              
  Replaceable inlet wire-mesh
                
                  |  | Type | Part.No | D [inch] | Weight [lb] | 
                
                  | WOL | 834Z33 | 11,3 | 0,2 | 
              
              
  Wall bracket
                
| Sort of bracket | Type |  | Part.No | S [inch] | Weight [lb] | 
                
                  |  | aluminium sheet | sheet WB-ERGO L/S | 817W27 | 10,9 | 15,4 |