Network[{Node[1, NodePosition -> {198.779449, 168.}], 
   Node[2, NodePosition -> {72.67847399999999, 168.000015}], 
   Node[3, NodePosition -> {125.220573, 168.}], 
   Node[4, NodePosition -> {251.321533, 168.}], 
   Arc[{2, 3}, ArcBezierPath -> {{-0.333333, 0.}, {0.333333, 0.}}, 
    ArcCircleHeight -> 0., ArcLoopClockwise -> False, 
    ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0., ArcStyle -> Line], 
   Arc[{1, 3}, ArcBezierPath -> 
     {{-0.666377, 0.999517}, {0.666377, 0.999517}}, 
    ArcCircleHeight -> 0.749637, ArcLoopClockwise -> False, 
    ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0., 
    ArcStyle -> Circle], Arc[{3, 1}, 
    ArcBezierPath -> {{-0.666377, 0.999517}, {0.666377, 0.999517}}, 
    ArcCircleHeight -> 0.749637, ArcLoopClockwise -> False, 
    ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0., 
    ArcStyle -> Circle], Arc[{1, 4}, 
    ArcBezierPath -> {{-0.333333, 0.}, {0.333333, 0.}}, 
    ArcCircleHeight -> 0., ArcLoopClockwise -> False, 
    ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0., ArcStyle -> Line], 
   Arc[{2, 2}, ArcLoopBezierPath -> 
     {{1.333333, -1.333333}, {-1.333333, -1.333333}}, 
    ArcCircleHeight -> -1., ArcLoopClockwise -> True, 
    ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 56.07224300000001], 
   Arc[{4, 4}, ArcLoopBezierPath -> 
     {{-1.333333, -1.333333}, {1.333333, -1.333333}}, 
    ArcCircleHeight -> -1., ArcLoopClockwise -> False, 
    ArcLoopAngle -> -(3.464102067418651*10^-7), 
    ArcLoopSize -> 56.07224300000001]}, ArcArrow -> False, 
  ArcArrowAngle -> 0.4, ArcArrowColor -> GrayLevel[0.], ArcArrowFlare -> 0.3, 
  ArcArrowPosition -> 1., ArcArrowSize -> 17., ArcColor -> GrayLevel[0.], 
  ArcFlipped -> False, ArcLabel -> "", ArcLabelColor -> GrayLevel[0], 
  ArcLabelDistance -> 0., ArcLabelPosition -> 0., ArcLabelSide -> Right, 
  ArcLoopStyle -> Circle, ArcThickness -> 1., NodeAnnulusRatio -> 0.2, 
  NodeColor -> GrayLevel[0.], NodeLabel -> None, NodeLabelAngle -> 0., 
  NodeLabelColor -> GrayLevel[0], NodeLabelDistance -> 0., NodeSize -> 3., 
  NodeStyle -> Disk, PlotRange -> {{0., 325.}, {330., 5.}}, 
  ArcLabelFont :> $DefaultFont, NodeLabelFont :> $DefaultFont]