H71单瓣对夹升降式止回阀由阀体、阀瓣、弹簧等组成,对夹单瓣式止回阀水平或垂直安装于管路系统,防止介质倒流,具有结构短、体积小、质量轻;阀瓣关闭快速,水锤压力小;流道通畅,流体阻力小;动作灵敏,密封性能好。对夹单瓣式材质有不锈钢、铸钢。
主要尺寸及重量
公称压力 PN(MPa) |
公称通径 DN(mm) |
尺寸(mm) | 重量 (kg) |
配管法兰 | |||||
L | D | D2 | 螺栓孔中心 圆直径D1 |
螺栓数量 | 螺栓直径D | 螺栓长度L1 | |||
1.0 1.6 |
15 | 16 | 53 | 16 | 0.12 | 65 | 4 | M12 | 75 |
20 | 19 | 63 | 19 | 0.24 | 75 | 4 | M12 | 90 | |
25 | 22 | 73 | 24 | 0.34 | 85 | 4 | M12 | 90 | |
32 | 28 | 84 | 31 | 0.53 | 100 | 4 | M16 | 100 | |
40 | 32 | 94 | 39 | 0.8 | 110 | 4 | M16 | 105 | |
50 | 40 | 109 | 48 | 1.2 | 125 | 4 | M16 | 125 | |
65 | 46 | 129 | 63 | 2.2 | 145 | 4 | M16 | 130 | |
80 | 50 | 144 | 78 | 3.1 | 160 | 8 | M16 | 135 | |
100 | 60 | 170 | 98 | 5.7 | 180 | 8 | M16 | 150 | |
125 | 90 | 198 | 123 | 10 | 210 | 8 | M16 | 180 | |
150 | 106 | 228 | 148 | 14 | 240 | 8 | M20 | 210 | |
200 | 140 | 275 | 198 | 24 | 295 | 8 | M20 | 240 | |
250 | 160 | 332 | 248 | 35 | 350 | 12 | M20 | 260 | |
2.5 | 15 | 16 | 53 | 15 | 0.12 | 65 | 4 | M12 | 80 |
20 | 19 | 63 | 19 | 0.24 | 75 | 4 | M12 | 90 | |
25 | 22 | 73 | 24 | 0.34 | 85 | 4 | M12 | 90 | |
32 | 28 | 84 | 31 | 0.53 | 100 | 4 | M16 | 110 | |
40 | 32 | 94 | 39 | 0.8 | 110 | 4 | M16 | 115 | |
50 | 40 | 109 | 48 | 1.2 | 125 | 4 | M16 | 125 | |
65 | 46 | 129 | 63 | 2.2 | 145 | 8 | M16 | 135 | |
80 | 50 | 144 | 78 | 3.1 | 160 | 8 | M16 | 145 | |
100 | 60 | 170 | 98 | 7 | 190 | 8 | M20 | 160 | |
125 | 90 | 198 | 123 | 12 | 220 | 8 | M24 | 205 | |
150 | 106 | 228 | 148 | 15 | 250 | 8 | M24 | 225 | |
200 | 140 | 284 | 198 | 26 | 310 | 12 | M24 | 260 | |
250 | 160 | 341 | 248 | 40 | 370 | 12 | M27 | 280 | |
4.0 | 15 | 16 | 53 | 15 | 15 | 65 | 4 | M12 | 80 |
20 | 19 | 63 | 19 | 19 | 75 | 4 | M12 | 90 | |
25 | 22 | 73 | 24 | 24 | 85 | 4 | M12 | 90 | |
32 | 28 | 84 | 31 | 31 | 100 | 4 | M16 | 110 | |
40 | 32 | 94 | 39 | 39 | 110 | 4 | M16 | 115 | |
50 | 40 | 109 | 48 | 48 | 125 | 4 | M16 | 125 | |
65 | 46 | 129 | 63 | 63 | 145 | 8 | M16 | 135 | |
80 | 50 | 144 | 78 | 78 | 160 | 8 | M16 | 145 | |
100 | 60 | 170 | 98 | 98 | 190 | 8 | M20 | 160 | |
125 | 90 | 198 | 123 | 123 | 220 | 8 | M24 | 205 | |
150 | 106 | 228 | 148 | 148 | 250 | 8 | M24 | 225 | |
200 | 140 | 291 | 198 | 248 | 320 | 12 | M27 | 275 | |
250 | 160 | 353 | 248 | 198 | 385 | 12 | M30 | 295 |