阀瓣式逆止阀 2026

 

ITEM PARTS MATERIAL 1 BODY ASTM A351-CF8M 2 SPRING PLATE 3 DISC 4 SPRING AISI 304

DN d D H W N 15 15 36 16 54 4 20 20 43 18.5 64 4 25 25 51 22 74 4 32 32 63.5 27 85.5 4 40 38 73 32 96 4 50 51 93.5 40 111.5 4 65 65 117 46 135.5 4 80 80 141 50 150 6 100 100 163 61 177 8 unit:mm   NPS d D H W N 1/2" 0.59 1.42 0.63 2.13 4 3/4" 0.79 1.69 0.73 2.52 4 1" 0.98 2.01 0.87 2.91 4 1-1/4" 1.26 2.5 1.06 3.37 4 1-1/2" 1.5 2.87 1.26 3.78 4 2" 2.01 3.68 1.57 4.39 4 2-1/2" 2.56 4.61 1.81 5.33 4 3" 3.15 5.55 1.97 5.91 6 4" 3.94 6.42 2.4 6.97 8 unit:in