Pressure : 25kg / cm2g Maximum Working Temperature : 220 °C Use : Water 1/2" 3/4” 1” DN 15 20 25 A 57 63 69 B 28 35 41 C 51 54 60 D 104 104 121 E 14 19 22 F 14 14 15 AF 23.5 29.5 36.5