# you can get rid of the ($netHash{$val} > 1.0) test
# I only included it to make the example more like yours
   if($netHash{$val} > 1.0 && $netHash{$val} < 1.4) {
         my ($x1, $y1) = ($val,$netHash{$val});
         $capVal_1_Hash{$x1} = $y1;
   }
   elsif($netHash{$val} > 1.4 && $netHash{$val} < 1.9) {
         my ($x2, $y2) = ($val,$netHash{$val});
         $capVal_2_Hash{$x2} = $y2;
   }
   ...
   ...