STR    
 
 

Electrofusion Works

 
STR Marketing presently sells electrofusion machines to major contractors and as well offers an after sales service for survey and repairs for equipments not under warranty. However, STR offers as well the possibility of hiring its electrofusion service for small projects when required.
 
The Process
Plain pipes are jointed by means of electrofusion fitting incorporating an electrical heating coil which when electrically activated for the appropriate time by electrofusion welding machine, melts the surface of the pipe & fitting together resulting in complete fusion of the pipe and electrofusion fitting. There is a barcode label on each of the fittings. This label includes fusion parameters (such as welding voltage and duration). Fusion parameters are transferred to the machine from this label either manually or by using the barcode reader.
 
Advantages
  • inner diameter of the pipe remains same.
  • Equipment mobility(low weight/low cost), so can be moved around easily.
  • high performance.
  • User friendly, fully automated, so need of highly skilled operator not required.
  • No weakening of material strength.
 
PE Material
The material used is polyethylene (PE) of black colour which is already stabilized against the effect of UV radiation by addition of required dosage of carbon black. It is also compatible with food-stuffs and physiologically and toxicologically safe. PE materials are classified according to their strengths as PE40, PE80 PE100 and PE100 HSCR.
 
Advantages of PE Material
PE is the most widely used in pipeline systems for assembly of buried gas and water piping. This material also offers many advantages in domestic installations and industrial piping systems. Some of these are: low weight, excellent flexibility and high stability against strokes, non-corrosive, low pipe friction losses, good chemical resistance, low maintenance and repair costs, possibility to take service lines from a live main.