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产品名称：H71W不锈钢对夹止回阀 |
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产品类别：止回阀 |
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主要技术参数：
| 型号 |
公称压力PN(MPa) |
试验压力PS(MPa) |
工作温度(℃) |
适用介质 |
| 壳体 |
密封 |
| H71W-16P |
1.6 |
2.4 |
1.76 |
≤200 |
水、蒸体、油品等 |
| H71H-25Q |
2.5 |
3.75 |
2.75 |
≤235 |
| H71W-25H |
≤300 |
| H71W-25P |
≤200 |
硝酸等腐蚀性介质 |
| H71W-40H |
4.0 |
6.0 |
4.4 |
≤300 |
水、蒸体、油品等 |
| H71W-40P |
≤200 |
硝酸等腐蚀性介质 | |
| 规格型号 |
阀体 |
阀瓣 |
弹簧 |
| H71H-16Q、H71H-25Q |
QT400-15 |
25 |
50CrCA |
| H71W-25H、H71W-40H |
2Cr13 |
1Cr13 |
1Cr18Ni9Ti |
| H71W-16P、H71W-25P |
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti | |
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公称压力
MPa |
公称通径
DN |
尺寸（mm） |
| L |
D1 |
D2 |
D3 |
D4 |
D5 |
PN1.0MPa
PN1.6MPa |
15 |
16 |
52 |
15 |
24 |
31 |
40 |
| 20 |
19 |
62 |
19 |
30 |
40 |
50 |
| 25 |
22 |
72 |
24 |
35 |
47 |
58 |
| 32 |
28 |
83 |
31 |
46 |
56 |
68 |
| 40 |
31.5 |
93 |
39 |
55 |
66 |
78 |
| 50 |
40 |
108 |
48 |
65 |
78 |
90 |
| 65 |
46 |
128 |
62 |
80 |
95 |
110 |
| 80 |
50 |
142 |
76 |
96 |
110 |
128 |
| 100 |
60 |
162 |
95 |
115 |
132 |
150 |
| 125 |
90 |
192 |
110 |
125 |
135 |
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蝶阀
