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对夹式止回阀
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| 主要零件材料 | |||||||
| 型号 Model |
主要零件材料Materials for man parts | 性能参数Specficstions | |||||
| 阀体 Body |
阀瓣 Disc |
弹簧 Spring |
挡板 Holder |
最低动作压力 Lowest Movement Pressure |
水、蒸汽、气体、油品 Water,Steam,Gas,Oil |
适用温度 Applicable Temperature |
|
| H71H | 碳钢 Carbon Steel |
不锈钢304 Stainless Steel 304 |
不锈钢304 Stainless Steel 304 |
不锈钢304 Stainless Steel 304 |
0.05Kg/cm² | 水、油品、蒸汽 Water,Oil,Steam |
-29℃~425℃ |
| H71W | 不锈钢CF8 Stainless Steel CF8 |
不锈钢304 Stainless Steel 304 |
不锈钢304 Stainless Steel 304 |
不锈钢304 Stainless Steel 304 |
0.05Kg/cm² | 硝酸等腐蚀性介质 Nitric acid and soon corrosive mdeium |
-196℃~540℃ |
| H71W | 不锈钢CF8M Stainless Steel CF8M |
不锈钢CF8M Stainless Steel CF8M |
不锈钢CF8M Stainless Steel CF8M |
不锈钢CF8M Stainless Steel CF8M |
0.05Kg/cm² | 醋酸等腐蚀性介质 Corrosive medium such as acetic acid, etc. |
-196℃-540℃ |
| H71W | 不锈钢CF8L Stainless Steel CF8L |
不锈钢316L Stainless Steel 316L |
不锈钢316L Stainless Steel 316L |
不锈钢316L Stainless Steel 316L |
0.05Kg/cm² | 尿素等腐蚀性介质Corrosive medium such a surea.etc. |
-196℃~455℃ |
| 单位：mm | 主要外形尺寸及连接尺寸 | ||||||||||
| 口径Size | PN 1.0MPa | PN 1.6MPa | PN 2.5MPa | PN 4.0MPa | PN 6.4MPa | ||||||
| DN | NPS | L | D | L | D | L | D | L | D | L | D |
| 15 | 1/2" | 25 | 52 | 25 | 52 | 25 | 52 | 25 | 52 | 25 | 62 |
| 20 | 3/4" | 25 | 62 | 25 | 62 | 25 | 62 | 25 | 62 | 31.5 | 73 |
| 25 | 1" | 30 | 72 | 30 | 72 | 30 | 72 | 30 | 72 | 35.5 | 83 |
| 32 | 11/4" | 32 | 83 | 32 | 83 | 32 | 83 | 32 | 83 | 40 | 89 |
| 40 | 11/2" | 38 | 93 | 38 | 93 | 38 | 93 | 38 | 93 | 45 | 104 |
| 50 | 2" | 45 | 108 | 45 | 108 | 45 | 108 | 45 | 108 | 56 | 114 |
| 65 | 21/2" | 50 | 128 | 50 | 128 | 50 | 128 | 50 | 128 | 63 | 138 |
| 80 | 3" | 60 | 142 | 60 | 142 | 60 | 142 | 60 | 142 | 71 | 148 |
| 100 | 4" | 75 | 162 | 75 | 162 | 75 | 168 | 75 | 168 | 80 | 174 |
| 125 | 5" | 85 | 192 | 85 | 192 | 85 | 194 | 85 | 194 | 110 | 211 |
| 150 | 6 | 102 | 218 | 102 | 218 | 102 | 224 | 102 | 224 | 125 | 248 |
| 200 | 8" | 110 | 273 | 110 | 273 | 110 | 284 | 110 | 291 | 160 | 310 |
| 250 | 10" | 146 | 328 | 146 | 329 | 146 | 341 | 146 | 353 | 180 | 362 |
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