... low friction loss for maximum flow. PRESSURE REQUIREMENTI .D.(Inch/mm)Working Pressure(Bar/Psi)Burst Pressure(Bar/Psi)1"2515/225 ... ,17/25045/675,51/7501-1/4"3215/225,17/25045/ ... 675,51/7501-3/4"4515/225,17/25045/675,51/7502"5215/225,17/25045/675,51/7502-1/2" ... 675,51/7502-3/4"7015/225,17/25045/675,51/7503"7515/225,17/25045/675,51/7504"10210/150,13 ...