The  process  of  jointing  PP-R  pipes   and  fittings   is   very simpleand results  in  an  inseparable    water   tight   joint.  It is carried  out  using a simple welding   machine   that  melts  the  internal   surface   of    the    fitting    and   the   external surface  of  the  pipe,  so   that  the  material  of  the pipe and the fitting will be fusedtogether.

• Prepare  the  welding   machine  by  fitting it  with  the  welding   die s  of   the    diameters    to    be  welded.  Connect  the plug to the 220 V  power supply  socket  and   wait   until   the   machine  reaches  the working temperature (260°C ).

• Cut the pipe at  right  angles  to   the  pipe  axis using suitable pipe cutter.

• Remove any burrs or  cutting  chips  by  deburring  the cutting area.

• Mark the welding  depth  on  the pipe using  a suitable marker.

• Without turning  insert  the  end  of  the  pipe  into  the heating sleeve up  to  the  marked  welding depth  and  at  the  same  time   slide  without  turning  the  fitting  into the  other  side  of  the heating tool up to the stop.

• Leave the pipe and  fitting  on the heating tool until the heating time is elapsed.

• At the end  of the  heating  time,  remove the pipe and fitting    from   the     heating    tool    and  push  them immediately   into    each    other   up   to   the   mark  indicatin    the    welding   depth.   At  this  stage  the depth    mark     will     be     covered  by  the  welding  bead.  During   this  process,  do  not rotate  the  pipe  and  fitting  relative  to each other.

• Allow the joint to cool fully before using.