To calculate burst pressure, the values in these graphs should be multiplied by 3. Advanced PE Tubing Worit Pressure (bar) Not rOkaymmended above 60°C-20 20 5 10 15 40 60 80 100 Ø6x4 Ø3/8" Ø4x2.5 Ø1/4" Ø10x7 Ø1/2" Ø8x5.5 Ø12x9 Worit Temperature (°C) Worit Temperature (°C)