公称直径 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 650 700 750 800 900 1000 1200 法兰连接钢制截止阀 L= 130 130 150 160 180 200 230 290 310 350 400 480 600 650 750 J41H-16C.16P.16R 4.7 5.2 7.1 7.4 8.5 12.5 14 22.5 29 32.5 80 93.5 180 440 648 J41H-25.25P.25R 4.9 5.4 7 7.4 8.5 12.5 16 25 30 34.5 89 98 180 445 654 J41H-40.40P.40R 4.9 5.7 7 8.8 11.8 16.5 24 33 44 60 89 98 190 J41H-64.6