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材质 | 型号 |
WCB | H71H/X-16C,H71H/X-25,H71H/X-40,H71H/X-64,H71H/X-100 |
304 | H71H/X-16P,H71H/X-25P,H71H/X-40P,H71H/X-64P,H71H/X-100P |
316 | H71H/X-16R,H71H/X-25R,H71H/X-40R,H71H/X-64R,H71H/X-100R |
H71对夹升降式止回阀性能规范 | ||||||
公称压力(MPa) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | |
密封试验压力(MPa) | 1.76 | 2.75 | 4.4 | 7.1 | 11.0 | |
壳体试验压力(MPa) | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | |
适用温度(℃) | WCB≤350,304,316≤200 | |||||
材料 | 阀体 | WCB,304,316 | ||||
阀瓣 | WCB,304,316 | |||||
弹簧 | 不锈钢 | |||||
阀座 | ,合金钢 |
H71对夹升降式止回阀国标外形尺寸 | |||||||||
公称压力 PN(MPa) | 公称通径 DN(mm) | 尺寸(mm) | 配管法兰(供参考) | ||||||
L | D | D3 | D2 | 螺栓孔中 心圆直径D1 | 螺栓数量 | 螺栓直径d | 螺栓长度L1 | ||
4.0 | 15 | 16 | 52 | 15 | 44 | 65 | 4 | M12 | 80 |
20 | 19 | 62 | 19 | 52 | 75 | 4 | M12 | 90 | |
25 | 22 | 72 | 24 | 60 | 85 | 4 | M12 | 90 | |
32 | 28 | 83 | 31 | 72 | 100 | 4 | M16 | 110 | |
40 | 31.5 | 93 | 39 | 74 | 110 | 4 | M16 | 115 | |
50 | 40 | 109 | 48 | 98 | 125 | 4 | M16 | 125 | |
65 | 46 | 129 | 63 | 117 | 145 | 8 | M16 | 135 | |
80 | 50 | 144 | 78 | 128 | 160 | 8 | M16 | 145 | |
100 | 60 | 168 | 98 | / | 190 | 8 | M20 | 160 | |
125 | 90 | 196 | 123 | / | 220 | 8 | M24 | 205 | |
150 | 106 | 224 | 148 | / | 250 | 8 | M24 | 225 | |
200 | 140 | 291 | 198 | / | 320 | 12 | M27 | 275 | |
250 | 160 | 353 | 248 | / | 385 | 12 | M30 | 295 | |
6.4 | 15 | 25 | 62 | 15 | / | 75 | 4 | M12 | 100 |
20 | 31.5 | 73 | 19 | / | 90 | 4 | M16 | 115 | |
25 | 35.5 | 83 | 24 | / | 100 | 4 | M16 | 130 | |
32 | 40 | 89 | 31 | / | 110 | 4 | M20 | 140 | |
40 | 45 | 104 | 39 | / | 125 | 4 | M20 | 150 | |
50 | 56 | 114 | 48 | / | 135 | 4 | M20 | 160 | |
65 | 63 | 138 | 63 | / | 160 | 8 | M20 | 170 | |
80 | 71 | 148 | 78 | / | 170 | 8 | M20 | 180 |
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