... maximum flow. I .D.Working PressureBurst Pressure(Inch/mm)(Bar/Psi)(Bar/Psi)1"2515/225,17/250, 20/30045/675,51/7501 ... -1/4"3215/225,17/250, 20/30045/675,51/7501-1/2 ... /7502"5215/225,17/250, 20/30045/675,51/7502-1/2"6415/225,17/250, 20/30045/675,51/7502 ...